User Manual - Trew Audio
Contents
1. 5 Digital Signal RHET 5 Smart Tuning SmiartT ne uoi STRA IE UE EASTER ERU R e ON NERA cute cles End eA ERREUR ad 5 efe aere Ac 5 DSP Based gn tee 5 SI pa Pa toe 0 1 0 EE 5 Smart Noise Reduction SmartNE Y acie HHH KE 6 RF Controlled Digital Noise 6 Balanced and Unbalanced Audio 6 Reprod EI 6 gcc 6 ILES IUe T 7 Fr nt Panel Controls and FUNGUO Mee 8 Berri me p 8 Menu zali EL EEEE EETI 8 MENU Control AWA 8 Balanced Audio Output ia Aaaa 8 Unbalanced Audio KA oU RR 8 Power nete AAA AA AAA AA AA AA AA AAA AAA 8 Main Antenna and Diversity A2. RF MODULE 1 1 1 1 1 1 1 1 1 ANTENNA 1 COMBINING D 1 tf 1 1 1 PLL SYNTHESIZER ist 2nd vco gt FILTER LCD Display 1 0 E PROM Smart Diversity uP PILOT TONE DETECT Block Diagram Output 1 4 Inch 50 Jack 100K Unbalanced E H H 5 DIGITAL SIGNAL 50 XLR PROCESSOR 2 HI Jack pi 5K Balanced AUDIO Digital 1 COMMON AMP Attenuator L E 5K 503 LO Attenuation 1 1 s D A H CONVERTER 1 1 LECTROSONICS INC UHF Wireless Diversity Receiver Digital Pulse Counting Detector The R400A receiver uses an elegantly simple yet high ly effective digital pulse detector to demodulate the FM signal rather than a conventional quadrature detector This unusual design eliminates thermal drift improves AM rejection and provides very low audio distortion The output from the Digital Pulse Counter is an analog signal containing the digital audio information This sig nal is fed through a low pass filter to an A D Converter in the Digital Signal Processing section Frequency Tuning Groups The R400A provides four factory set compatible frequency groups A through D and two user program mable frequency groups U and
3. 12 EA Bienner AAA AA WAA AAA AA AAA AWA 12 UA M 12 US AU 12 Smart Np 12 NAG p M 13 Hoods pM 18 AREE p REPE 13 a 18 Pre Coordinated Frequencies ge 14 Compatible Frequency 14 Compatibility Dia CI E T MHr geal 15 Using SmartTune and the Scan 16 Programming User Groups 17 Adding User Group 17 Deleting User Group 17 Cal ESCHOSOMICS 17 Trou
4. External power supply voltage is too high or too low Check external power supply If this message appears when the transmitter is turned off it means interference was detected on the channel The solution is to find a new frequency on which to operate If this message appears when the transmitter is on it usually means that the transmitter s tuning does not exactly match the receivers Double check that the transmitter and receiver are on the same channel If the message persists it may mean that the transmitter or the receiver is out of alignment Contact the factory for assistance Audio output cable bad or disconnected or connected to the wrong audio output jack Audio Output level set too low or wrong output used Ensure the correct audio output is being used then use the built in test tone to verify levels PILOT P keeps flashing when transmitter power switch is turned on Noise on audio and Pilot indicator is b Pilot tone detection can take several seconds Turn on the transmitter power and the audio switch on some models and wait 3 to 5 seconds for the P to indicate steadily Transmitter and receiver not on same frequency Receiver compatibility mode does not match the transmitter in use The pilot tone bypass has been activated Set PilotBP to NORMAL Pilot indicator not present but audio is being received Receiver is set to a compatibility mode that doesn t use pilot tone Check that receiver compati
5. BLOCK 470 BLOCK 19 BLOCK 20 BLOCK 21 BLOCK 22 BLOCK 23 NOT AVAILABLE 512 500 563 700 129 AVAILABLE 513 100 564 300 129 AVAILABLE 514 000 565 200 y tv29 GrpA NOT AVAILABLE 514 600 565 800 f tv29 NOT AVAILABLE 515 900 567 100 x tv30 NOT AVAILABLE 516 800 568 000 A tv30 NOT AVAILABLE 517 300 568 500 A tv30 NOT AVAILABLE 518 100 569 300 A tv30 498 900 550 100 A 601 300 501 100 552 300 603 500 501 800 553 000 604 200 Grp B 503 100 554 300 605 500 504 900 505 800 508 400 510 700 556 100 607 300 557 000 AVAILABLE 559 600 AVAILABLE 561 900 AVAILABLE BLOCK 470 BLOCK 19 BLOCK 20 BLOCK 21 BLOCK 22 BLOCK 23 FREQ FREQ FREQ SW SET US TV CH FREQ SWSET US TV CH FREQ NOT AVAILABLE 493 300 x 518 900 544 500 tv26 570 100 1730 595 700 AVAILABLE 493 900 3 519 500 545 100 3 tv26 570 700 ji 596 300 NOT AVAILABLE 494 800 520 400 546 000 571 600 597 200 Grp C NOT AVAILABLE 495 400 521 000 546 600 572 200 597 800 NOT AVAILABLE Yl TV 522 000 547 600 Z 573 200 x 598 800 NOT AVAILABLE A 523 200 A 548 800 A 574 400 A 600 000 NOT AVAILABLE 523 700 549 300 574 900 600 500 AVAILABLE 524 300 549 900 A 575 500 pi 601 100 478 700 529 900 555 500 581 100 606 700 479 700 A E 530 900 556 500 A 582 100 607 700
6. Note The test tone output is especially useful for an exact level match With the test tone running adjust for the maximum desired peak level using the metering on the connected device 10 If desired access the LockSet menu to lock the R400A front panel controls to prevent inadvertently modifying the receiver settings during operation R400A Front Panel Controls and Functions LCD Screen R400A The LCD Screen is used to monitor system operation LECTROSONICS and display information while configuring the R400A See R400A Menu Options PUSH FOR MENU POWER PREV Menu Button WER Digital Hybrid Wireless Dual function control providing a POWER On Off function and a return to previous menu function If the receiver is turned off momentarily pressing this button POWER LCD Screen MENU Control turns the receiver on If the receiver is already turned PREV MENU on pressing this button causes the LCD to display the Button previous menu Pressing and holding the button for at least two seconds turns the unit off MENU Control The dual function MENU control is used to access menus and change receiver settings Push the control to enter the TopMenu or activate the selected menu op tion Rotate the control to either select a menu option or to set an operating parameter Rear Panel Features Balanced Audio Output This is a standard XLR configuration with Pin 2 posi tive with reference to hand held an
7. control to set the overall audio level of the entire system The transmitter gain control is not a volume control and must be set independently of the overall system audio level The transmitter gain control is only used to set the proper modulation of the transmitter It is used to Rio Rancho NM MAIN ANT d Main Unbalanced Antenna Input R400A SYNTHESIZED RECEIVER LECTHOSONICS w PUSH FOR MENU PREV PCINES Digital Hybrid Wireless POWER PREV MENU Button LCD Screen MENU Control LECTROSONICS Mae A 8 to 18 VDC DIV ANT 00 mA MAX e O to dBu Diversity Audio Output Antenna Input Balanced Power Input Jack Audio Output match the transmitter to the type of microphone and the sound levels that will be present at that microphone We encourage users to either disconnect the rest of the sound system or turn the sound system gain to minimum to prevent either feedback or overload as the transmitter gain is set Only after the transmitter gain control is set should the gain of the rest of the audio system be adjusted to achieve the desired sound or signal levels Use the Level or Tone menus to adjust the audio output levels to match the required input level of any connected devices camera mixer recorder etc The adjustment range is from 50 dBu to 5 dBu in 1 dBu steps for the balanced output and 55 dBu to 0 dBu in 1 dBu steps for the unbalanced output
8. does to make the repair there is a charge for an exact quotation We will be happy to quote approximate charges by phone for out of warranty repairs Returning Units for Repair For timely service please follow the steps below A DO NOT return equipment to the factory for repair without first contacting us by email or by phone We need to know the nature of the problem the model number and the serial number of the equipment We also need a phone number where you can be reached 8 A M to 4 P M U S Mountain Standard Time B After receiving your request we will issue you a return authorization number R A This number will help speed your repair through our receiving and repair departments The return authorization number must be clearly shown on the outside of the shipping container C Pack the equipment carefully and ship to us shipping costs prepaid If necessary we can provide you with the proper packing materials UPS is usually the best way to ship the units Heavy units should be double boxed for safe transport D We also strongly recommend that you insure the equipment since we cannot be responsible for loss of or dam age to equipment that you ship Of course we insure the equipment when we ship it back to you Lectrosonics USA Mailing address Lectrosonics Inc PO Box 15900 Rio Rancho NM 87174 USA Web www lectrosonics com Lectrosonics Canada Mailing Address 49 Spadina Avenue Suite 303A To
9. noise reduc tion is applied to remove most of the hiss from the mic preamp and some of the hiss from lavaliere mi crophones The noise reduction benefit is dramatic in this position yet the degree of transparency maintained is exceptional FULL Enough noise reduction is applied to remove most of the hiss from nearly any signal source of reasonable quality assuming levels are set properly at the transmitter This additional noise reduction comes at the cost of some transparency for low level room noise yet the algorithm remains undetectable under most circumstances Note The SmartNR setting is user selectable only in 400 Series mode In other modes noise reduction is applied in such a way as to emulate the original analog system as accurately as possible and is not user adjustable Noise Controlled Digital Filter In addition to SmartNR the R400A contains a super sonic noise sensitive variable frequency filter which re duces high frequency response under extremely weak RF conditions This filter does nothing until the level of supersonic noise present in the received audio exceeds a predetermined threshold at which point it begins to roll off high frequencies Usable audio remains unaf fected but noise ups or hits occurring near the fringe of reception sound much less harsh Balanced and Unbalanced Audio Outputs The R400A offers two audio outputs for the ultimate in flexibility Balanced XLR and Unbal
10. scanning with the Venue receiver or researched in advance on this web site www fccinfo com BLOCK 24 BLOCK 25 FREQ SW SET US TV CH BLOCK 26 FREQ FREQ 614 900 666 100 615 500 666 700 616 400 667 600 617 000 668 200 618 300 669 500 619 200 670 400 619 700 670 900 620 500 671 700 652 500 P tv44 654 700 tv44 655 400 tv44 656 700 145 658 500 tv45 659 400 tv45 662 000 tv45 46 664 300 146 BLOCK 24 BLOCK 25 BLOCK 26 FREQ SW SET US TV CH FREQ SW SET US TV CH FREQ SW SET US TV CH BLOCK 27 FREQ SW SET US TV CH 703 700 BLOCK 25 FREQ SWSET USTVCH 646 900 143 647 500 648 400 649 000 650 000 All 16 within the same block are compatible 633 300 633 800 635 500 636 200 636 800 637 500 BLOCK 24 BLOCK 25 FRE TV CH FREQ SWSET US TVCH 646 900 45 1 43 647 500 4B 143 upper eight Ma s 1 compatible with 650 000 64 maana 651 200 7 0 144 the lower eight 51 700 75 ma En rm in the adjacent Soa 633 300 BD 1941 blocks 633 800 c2 41 635 500 0 3 1941 636 200 DA 1941 636 800 EO 1941 637 500 ET tv41 639 300 F8 tv42 BLOCK 24 BLOCK 25 The lower eight are compatible with the upper eight
11. transmitter match the receiver frequency setting Check transmitter battery Transmitter gain set too low The noise may not be in the wireless system Turn the transmitter audio gain all the way down and see if the noise remains If the noise remains then turn the power off at the transmitter and see if it remains If the noise is still present then the problem is not in the transmitter If noise is still present when the transmitter is turned off try lowering the audio output level on the R400A and see if the noise lowers correspondingly If the noise remains the problem is not in the receiver Receiver output is too low for the input of the device it is feeding Try increasing the output level of the R400A and lowering the input gain on the device the R400A is feeding Transmitter input gain too high Check and or readjust input gain on transmitter according to the LEDs on the transmitter and then verify the setting with the audio meter in the main window Audio output level too high for the device the R400A is feeding Lower the output level of the R400A Bad frequency response or generally poor audio quality Ensure the receiver is set to the compatibility mode that matches the transmitter in use Note A number of symptoms may be caused by a strong interfering signal on the same frequency The easiest way to determine if the transmitter and receiver are operating on a clear frequency channel is to switch off the transm
12. 0 N28 noise range and dropout problems Your options to ac ssa Gr complish this include 567 100 T pa Using the pre coordinated frequency groups E ES Performing a system checkout 569 300 See Multi channel System Checkout Pre coordinated fre Calling Lectrosonics for assistance quencies are arranged in four groups as shown Compatible Frequency Table at right Grp b Groupings of compatible frequencies have been cre The uppermost eight ated to minimize intermodulation problems in multiple frequencies comprise BLOCK 22 channel wireless systems The frequencies can be used Grp a the eight just FREQ SwsET with Digital Hybrid and analog Lectrosonics wireless below them comprise eguipment Compatibility with other brands is likely but Grp b and so on not guaranteed by Lectrosonics The table provides two different sets of pre coordinated freguencies for freguency blocks 470 through 29 The Displayed as GROUP a through GROUP d in the LCD and as Grp a through Grp d in VRpanel 581 100 table is constructed to create a visual pattern of com 582100 patible frequencies to make it easier to use The fre ETES quencies are stored in memory in various products and So included in the VRpanel software 586 300 588 100
13. 480 200 A 531 400 557 000 582 600 NOT AVAILABLE GrpD 481 900 507 500 E 533 100 558 700 E 584 300 AVAILABLE 482 600 s 508 200 533 800 i 559 400 585 000 i NOT AVAILABLE 483 200 z 508 800 A 534 400 A 560 000 585 600 AVAILABLE 483 900 509 500 4 535 100 560 700 8 586 300 AVAILABLE 485 700 A 511 300 536 900 d 562 500 588 100 d NOT AVAILABLE NOTE These frequencies can also be manually tuned with block 470 modules 74 LECTROSONICS INC UHF Wireless Diversity Receiver Compatibility Diagram Compatibility follows the pattern illustrated in the dia gram at right Grp a and Grp b contain the 16 frequencies shown in the table below upper orange white set Grp c and Grp d contain the 16 frequencies shown in the table below lower blue white set NOTE There is no assurance that frequencies are compatible between the upper orange white set and the lower blue white set Combined use of frequencies from both sets requires testing with the procedures outlined in the following section entitled Diagnostics Multi channel System Checkout These frequencies share RF spectrum with TV chan nels The upper orange white set and the lower blue white set of frequencies provide two different lists of TV channels Use the set with fewer active TV stations in the area where you are operating Active TV station signals can be discovered by
14. 734 700 B3 760 300 B3 633 300 B D 658 900 B D 684 500 B D 710 100 BD tv54 735 700 B D 761 300 B D 633 800 c2 659 400 c2 685 000 c2 710 600 C2 tv54 736 200 c2 761 800 c2 635 500 0 3 661 100 0 3 686 700 0 3 712 300 0 3 1954 737 900 0 3 763 500 0 3 636 200 DA 661 800 DA 687 400 DA 713 000 DA tv54 738 600 DA 764 200 DA 636 800 0 662 400 0 688 000 EO 713 600 EO tv54 739 200 EO 764 800 EO 637 500 ET 663 100 ET 688 700 E7 714 300 EZ tv54 739 900 E7 765 500 ET 639 300 9 664 900 690 500 F 9 Rio Rancho NM 716 100 1v55 741 700 F 9 767 300 15 RaOOA Frequency Coordination Intermodulation interference is a problem constantly lurking in the background especially when working in environments where simultaneous productions are taking place in close proximity In these cases proper frequency coordination is a must There are basically three methods to coordinate frequencies Use the built in frequency groups Scan for clear channels See SmartTune and Scan Function Call Lectrosonics Frequency Compatibility Chart Considering that multiple systems can be used in a produc tion coordinating frequencies to minimize interference between these channels can be a daunting process The Frequency Compatibility Chart was designed to as sist in minimizing intermodulation proble
15. FB 100 Series 200 Series and Mode 3 non Lectrosonics analog transmitters 1 10th volt steps accuracy 0 2V Receiver and transmitter both track transmitter battery level Transmitter AA battery accuracy 0 05V Timer option available Coarse and fine modes for RF spectrum site scanning 1 kHz 50 dBu to 45 dBu 196 THD XLR output 1 kHz 55 dBu to 0 dBu lt 1 THD 1 4 output 9V alkaline 9V lithium AA alkaline AA lithium TIMER Audio output phase normal or inverted OFF NORMAL FULL modes available in 400 Series mode only These specs apply to 400 Series mode only 30 Hz to 20 kHz 1 dB System frequency response will vary depending on transmitter used 0 2 typical SmartNR No Limiting W Limiting OFF 103 5 108 0 NORMAL 107 0 111 5 FULL 108 5 113 0 125 dB with full Tx limiting XLR and 1 4 inch phone audio output jack External DC input BNC antenna connectors Minimum 8 volts to maximum 18 volts DC 1 6 W 200 mA maximum 13 02 5 50 14 wide 1 75 4 5 high 6 25 16 Specifications subject change without notice Operation of this device is subject to the following tow conditions 1 this device may not cause interference and 2 this device must accept any interference including interference that may cause undesired operation of the device 22 LECTROSONICS INC UHF Wireless Diversity
16. ILITY OF LECTROSONICS INC EXCEED THE PURCHASE PRICE OF ANY DEFECTIVE EQUIPMENT This warranty gives you specific legal rights You may have additional legal rights which vary from state to state A LECTROSONICS 581 Laser Road Rio Rancho NM 87124 USA www lectrosonics com 505 892 4501 800 821 1121 fax 505 892 6243 sales 2 2 June 09
17. INSTRUCTION MANUAL R400A UHF Diversity Receiver Also part of 15400 and TM400 Systems Includes IFB Mode R4OOA SYNTHESIZED RECEIVER LECTROSONICS dii PUSH FOR MENU PREV MENU m Digital Hybrid Wireless U S Patent 7 225 135 SELECT Featuring Digital Hybrid Wireless Technology US Patent 7 225 135 Serial Number LECTROSONICS Purchase Date wy Rio Rancho NM USA www lectrosonics com R400A 2 LECTROSONICS INC UHF Wireless Diversity Receiver Table of Contents itpon iai WAA AA AA AAA AA AAA AAA AAA AAA 4 Digital Hybrid Wireless ceret etre ce E d der decer ER EK KK ae 4 Diversity RECOPTON M 4 Front End MIXET erno nara E 4 IF Amplifiers SAW Filters cate D PO EE EROR SEHE en RUE A ER eek ase 4 Digital Pulse Counting 5 Frequency Tuning Groups c 5 Microprocessor PLL VCO
18. Receiver Rio Rancho NM 23 NN LIMITED ONE YEAR WARRANTY The equipment is warranted for one year from date of purchase against defects in materials or workmanship provided it was purchased from an authorized dealer This warranty does not cover equipment which has been abused or damaged by careless handling or shipping This warranty does not apply to used or demonstrator equipment YA Should any defect develop Lectrosonics Inc will at our option repair or replace any defective parts without charge for either parts or labor If Lectrosonics Inc cannot correct the defect in your equipment it will be replaced at no charge with a similar new item Lectrosonics Inc will pay for the cost of returning your equipment to you This warranty applies only to items returned to Lectrosonics Inc or an authorized dealer shipping costs prepaid within one year from the date of purchase This Limited Warranty is governed by the laws of the State of New Mexico It states the entire liablility of Lectrosonics Inc and the entire remedy of the purchaser for any breach of warranty as outlined above NEITHER LECTROSONICS INC NOR ANYONE INVOLVED IN THE PRODUCTION OR DELIVERY OF THE EQUIPMENT SHALL BE LIABLE FOR ANY INDIRECT SPECIAL PUNITIVE CONSEQUENTIAL OR INCIDENTAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THIS EQUIPMENT EVEN IF LECTROSONICS INC HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES IN NO EVENT SHALL THE LIAB
19. The Tuning Mode indicates whether the receiver is set for Normal tuning or Group tuning See Tuning Menu LECTROSONICS INC UHF Wireless Diversity Receiver The R400A s menu functions are accessed via the top level menu by pressing the MENU control The control is then rotated to browse the available menu options and pressed to make a selection Menu Functions The R400A Menu functions can be divided into four main areas setting up the receiver automatic clear channel selection locking the receiver and scanning for clear frequencies SetUpRx The SetUpRx menu accesses the screens used to set up the receiver These screens include Freq Level Tuning Compat Tone PilotBP Phase TxBatt and SmartNR Freq The Freq setup screen displays the TV channel which television broadcast channel this frequency falls within the associated transmitter Frequency Select Switch settings and the selected operating frequency for the R400A To change the operating frequency rotate the MENU control Exit this setup screen by pressing the PREV MENU button The receiver will retain its tuning even when the power is off Note If the operating frequency is changed ensure that the Frequency Select Switch settings of the associated transmitter match the settings shown in the upper right hand corner of this screen Level B The Level B setup screen displays the audio output level of the receiver in dBu at the balanced XLR jac
20. V The factory groups have been selected to avoid in termodulation problems Each group includes eight channels The user programmable frequency groups can have up to 16 frequencies per group Microprocessor PLL and VCO Circuits An 8 bit microprocessor monitors user command inputs from the front panel control buttons and numerous other internal signals such as RF level audio levels pilot tone levels and external power voltage The microprocessor also drives the LCD display controls the squelch and audio output attenuator and operates the PLL VCO circuits and the antenna phase switch Digital Signal Processor The DSP reconstructs the original digitized audio from the A D Converter and detects the ultrasonic Pilot Tone The DSP also incorporates an RF controlled digital noise filter in addition to SmartNR This RF sensitive variable frequency filter reduces high frequency re sponse under extremely weak RF conditions The filter does nothing until the RF signal strength drops below 3uV at which point it begins to roll off high frequencies Usable audio remains unaffected but noise ups or hits occurring near the fringe of reception sound much less harsh The reconstructed original analog audio signal is then sent to the audio output section Smart Tuning SmartTune A major problem facing wireless users is finding clear operating frequencies especially in RF saturated envi ronments SmartTune overcomes t
21. V 107 dBm A weighted 1 5 UV 104 dBm A weighted Greater than 100dB Greater than 60 dB 2 uV to 1 Volt Undetectable after processing 85 kHz 85dB 0 dBm Phased antenna combining SmartDiversity Digital Pulse Counting Detector operating at 300 kHz Dual BNC female 50 Ohm impedance Rear Panel XLR adjustable from 50dBu to 5dBu in 1dB steps Calibrated into a typical 10 k Ohm balanced load Can drive 600 Ohm load Rear Panel 1 4 inch jack adjustable from 55 dBu to 0 dBu in 1dB Steps Combined push rotate switch combination for menu selection and system configuration Momentary press for power ON Press and hold several seconds for POWER OFF Momentary press if unitis powered up for return to previous window LCD Main window Audio output level adjustment Compatibility Modes Battery level tracking Scanning mode Audio test tone Transmitter battery type selection Phase invert Smart NR noise reduction AUDIO PERFORMANCE OVERALL SYSTEM Frequency Response Typ THD SNR at receiver output dB Input Dynamic Range Rear Panel Controls and features Power Ext DC Weight Dimensions Pilot tone antenna phase transmitter battery status audio level RF level Battery timer Frequency and Transmitter switch setting 50 dBu to 5 dBu XLR and 55 dBu to 0 dBu 1 4 inch independently adjustable 400 Series Digital Hybrid Wireless I
22. anced Line Out Monitor 1 4 inch jack Both outputs operate indepen dently and are controlled by their own digital attenuator LCD Screen The LCD screen is used in conjunction with the MENU control to change and control the operational settings and also provide a visual feedback of overall system operation See R400A MENU SELECTIONS Power Supply The R400A is operated from an external DC power source with a range of 8 VDC to 18 VDC up to 0 20 amperes 200 milliamps maximum The receiver has a built in Poly Fuse to protect the unit If a problem occurs that trips this fuse it will reset after the power supply is disconnected for about 15 seconds The power input section also has built in protection circuits that prevent damage to the receiver if a positive ground power source is applied Note The R400A requires external DC power and has no provisions for internal batteries LECTROSONICS INC UHF Wireless Diversity Receiver Initial Setup 1 2 3 Connect the power cord from the power supply to the Power Input Jack Attach the antennas or antenna cables to the MAIN ANT and DIV ANT BNC connectors Press the POWER PREV MENU button to turn on the unit on Check to see that the LCD displays the three screen Power Up Sequence Lectrosonics R400A VXX where VXX is the current firmware version installed Block XX where XX is the frequency tuning range block number After the Power Up Sequence is
23. bility mode matches the transmitter in use as any sufficiently strong signal can unsquelch the receiver in this mode compatible or not Note In 400 Series 200 Series IFB and Mode 6 compatibility modes the PILOT indicator on the front panel shows as a solid P to indicate that the audio has been turned on at the transmitter and that the audio output on the receiver is enabled When the is on the audio is enabled If the P is flashing the pilot tone is not detected and the audio will be muted squelched In the other compatibility modes no pilot tone is used and the P is never displayed Audio is present whenever the receiver detects a sufficiently strong signal Note In 400 Series 200 Series IFB and Mode 6 compatibility modes activating the pilot bypass function causes a lowercase b to appear in the pilot indicator position on the main window and forcibly unsquelches the audio 18 LECTROSONICS INC UHF Wireless Diversity Receiver Symptom RF Level is weak No RF Signal Poor signal to noise ratio Distortion Solution Receiver may need to be moved or reoriented Antenna on transmitter may be defective or poorly connected double check antenna on transmitter Improper length of antenna or wrong antenna on transmitter or receiver UHF whip antennas are generally about 3 to 5 inches long UHF helical antennas may be shorter but are often less efficient Make certain frequency switches on
24. bleshoolirig tasciccscacsssectiasnesstaseariacadevacsanadainessansdesinasdceduoadentsnatadnandsnasinnacaneieasadiaavasedaanansacassdaaduceanauccdadbiusseadsiuegudacdianndassiunssadtarecstunds 18 Replacement Parts and 20 Service and Bepdlt aa 21 Returning Units for TEE 21 idu mu cumul ct NES 22 Rio Rancho NM 3 RaOOA Introduction The R400A is a high performance triple conversion frequency synthesized UHF receiver fully compatible with all Lectrosonics 400 Series Digital Hybrid Wire less transmitters 200 Series and 100 Series analog transmitters and Lectrosonics IFB transmitters plus some analog transmitters from other manufacturers call Lectrosonics for details The R400A features 256 user selectable frequencies and its proprietary audio processing includes a digital signal processor DSP for very low distortion a superior signal to noise ratio and two independent audio outputs one balanced and one unbalanced The receiver features a menu driven LCD graphic dis play a push button POWER PREV MENU control and a dual function push rotate PUSH FOR MENU RO TATE TO SELECT control hereafter called the MENU control as a convenient means of viewing and altering user settings The MENU control provides simple and intuitive access to change and adjust settings and operating lev
25. d plug on transmit ters With lavaliere microphones and belt pack trans MAIN ANT 8 to 18 VDC DIV ANT mitters however phase will vary with different types of s S microphones 2 wire vs 3 wire for example The audio output is balanced but not floating An unbalanced sig nal is available using Pin 1 as ground Pin 2 as signal and leaving Pin 3 open AUDIO OUT R400A Receiver BAL LECTROSONICS Main Unbalanced Diversity Unbalanced Audio Output Antenna Input Audio Output Antenna Input This is a standard 1 4 inch phone jack with the center Power Input Jack Balanced pin positive and the sleeve connected to ground This Audio Output jack provides unbalanced line level audio output Power Input Jack The power input jack accepts 8 VDC to 18 VDC center pin is positive and sleeve is ground The input is diode protected to prevent damage if the power is ap plied with reversed polarity and it will keep the unit from operating until the condition is fixed Main Antenna and Diversity Antenna Inputs The MAIN ANT and DIV ANT inputs are both 50 Ohm BNC connectors In single antenna configurations the antenna is connected to the MAIN ANT jack See Antenna Use and Placement 8 LECTROSONICS INC UHF Wireless Diversity Receiver Antenna Use and Placement The receiver is supplied with two right angle BNC an tennas In some circumstances remote antennas such as the SNA600 or ALP600 may be useful for improving recept
26. displayed the Main Window appears and the R400A is ready for operation Ensure the receiver and transmitter are set to the same Compatibility Mode then locate a clear operating frequency see Frequency Coordination Then set the Transmitter Frequency Select Switch es to match the receiver s operating frequency See R400A Menu Options Turn the transmitter on and verify that an RF signal is indicated on the LCD Connect an audio cable to the appropriate audio output jack Because the audio outputs operate in dependently external equipment can be connected to either or both output jacks Locate a clear operating frequency The easiest method is to use SmartTune and then set the transmitter frequency indicated on the display Note For more detailed instructions see Using SmartTune and the Scan Function on page 16 Refer to the associated transmitter operating in structions and adjust the transmitter gain Warning This is perhaps the most important step in the setup procedure In general adjust the transmitter gain so that the voice peaks will cause the audio modulation level indicators on both the receiver and transmitter to show full modulation on the loudest peak audio levels Normal levels should cause the R400A s audio level bar to fluctuate fully resulting in the best possible signal to noise ratio for the system Note A common mistake is to use the transmitter audio gain
27. e also eliminates the need for fragile crystals allowing the receiver to survive shocks and mishandling much better than older analog based pilot tone systems Note The above description applies only in 400 Series mode In other modes requiring pilot tones only one pilot tone frequency is used on all channels Smart Squelch The R400A employs a sophisticated squelching system in an attempt to deliver the cleanest possible audio dur ing marginal conditions of reception Any squelching system faces inevitable trade offs Squelch too much and valuable audio information may be lost squelch too little and excessive noise may be heard respond too rapidly and the audio sounds choppy respond too sluggishly and syllables or entire words can be cut off The R400A combines several techniques to achieve an optimal balance removing distracting noise without the squelching action itself becoming a distraction One of these techniques involves waiting for a word or syllable to complete before squelching Another incorporates recent squelching history and recent signal strength adjusting squelching behavior dynamically for the most serviceable result under variable conditions Using these and other techniques the R400A can deliver ac ceptable audio quality from otherwise unusable signals In the PILOT TONE BYPASS mode the squelch system is disabled Received audio remains unmuted at all times with this setting R400A Smart N
28. e center of the view serves as the cursor Beneath the scan area is a scroll bar to remind you that this is a partial picture of the spectrum Use the MENU control to scroll through the entire spectrum Rotate counterclockwise to view lower frequencies or clockwise to show higher frequencies Scroll through the screen and find a frequency where no RF signals are present or in the worst case only very weak RF signals With the cursor on this fre quency press the PREV MENU button to exit from scan mode When exiting the scan mode you are given the option to select either the frequency the unit was on before entering the scan mode or the frequency just selected in the scan mode The display shows Use new freq to prompt you to make a frequency selection and also shows the new frequency Rotate the MENU control to view the options Select YES to set the receiver to the frequency chosen in scan mode Select NO to return to the frequency that was set before entering the scan mode Select SCAN to resume scanning Note Ensure the transmitter s Frequency Select Switch settings are the same settings as shown on the display and your system will be ready for operation R400A Pre coordinated Frequencies Interference from IM intermodulation is a potential BLOCK 22 problem in all multi channel wireless systems so proper AI ECL x frequency coordination is always required to avoid 554300
29. ed Antenna Phase indicator Displays antenna phase switching activity As the DIV ANT phase is switched the symbol will flip vertically RF level Displays the relative strength of the incoming RF The icon grows taller as the strength of the incom ing RF signal increases RF level calibrations are shown from 1uV to 1000uV to the left of the RF level icon Audio Level The audio level bar changes in length horizontally to indicate the audio level modulation of the signal received from the transmitter A vertical bar will appear at the right end when the audio signal is in limiting maximum level at the transmitter Calibration marks in dB are displayed below the bar Battery Level Indicates the transmitter battery status or the transmitter battery use time depending on the TXBAT setting The transmitter battery status icon is available only in compatibility modes supporting battery telemetry 400 and 200 Series In such cases the transmitter battery status icon appears 5 to 10 seconds after the transmitter signal is acquired If selected in the TXBAT setup screen the transmitter battery timer is available in any compatibility mode It accumulates hours and minutes that the communications link is active retaining the timing even when the receiver is off Operating Frequency Tuning Mode Switch Settings Displays the operating frequency the tuning mode and the settings for the Frequency Select Switches in the associated transmitter s
30. els Pushing the MENU control from the Main Window en ters the Top Menu which displays a choice of five sub menu options SetUpRx LockSet SmartTune Scan and Exit Rotating the MENU control either highlights a menu option or sets a parameter Pushing the MENU control either selects the highlighted menu option or enters or reenters a menu Digital Hybrid Wireless Lectrosonics Digital Hybrid Wireless US Patent 7 225 135 uses innovative technology to combine the new advantages of digital audio with the classic ad vantages of analog RF transmission The result is the superior sound quality of a digital system and the excel lent range of an analog system A proprietary algorithm encodes the digital audio information into an analog format which can be transmitted in a robust manner over an analog FM wireless link The receiver employs the latest filters RF amplifiers mixers and detector to capture the encoded signal and a DSP Digital Signal Processor recovers the original digital audio This digital analog hybrid technique has some very beneficial properties Because the information being transmitted is digitally encoded immunity to noise is much higher than a compandor based system can offer and no artifacts are introduced under strong RF condi tions and spectral and power efficiency and operating range are not compromised Diversity Reception SMARTDiversity minimizes dropouts in situations where multi path reflectio
31. his problem by au tomatically scaning all the frequencies available in the receiver s frequency block and tuning the receiver to the frequency with the lowest RF interference significantly reducing setup time Rio Rancho NM Compatibility Modes The R400A receiver was designed to operate with Lectrosonics 400 Series transmitters and will yield the best performance when doing so However due to the flexibility of digital signal processing the R400A is also able to operate with Lectrosonics 200 Series 100 Se ries and IFB transmitters and certain non Lectrosonics transmitters in special compatibility modes Contact the Lectrosonics Sales Department for a complete list of compatible transmitters DSP Based Pilot Tone The 400 Series system design uses a DSP generated ultrasonic pilot tone from the transmitter to control the receiver audio muting squelch If the Pilot Tone is en abled a Pilot Tone Detect signal generated by the DSP automatically controls the receiver s squelch Built in brief delays are also incorporated to eliminate the thumps pops or other transients that can occur when the transmitter is turned on or off The pilot tone frequency is different for each of the 256 frequencies in the tuning range of a system frequency block This eliminates squelch problems in multichan nel systems where a pilot tone signal can appear in the wrong receiver via intermodulation products Using the DSP to detect the pilot ton
32. ies or Mode 3 Compatibility Modes so therefore this function is not offered for those modes Phase B By default the balanced audio output is driven IN PHASE in regard to the audio signal from the trans mitter To invert the receiver s balanced audio output enter the Phase B setup screen rotate the MENU control to select INVERT The phase of the audio signal is inverted at the balanced XLR jack To restore the receiver s balanced audio output to In Phase select NORMAL Exit this setup screen by pressing the PREV MENU button Phase U By default the unbalanced audio output is driven IN PHASE in regard to the audio signal from the transmit ter To invert the receiver s unbalanced audio output enter the Phase U setup screen rotate the MENU con trol to select INVERT The phase of the audio signal is inverted at the unbalanced 1 4 inch jack To restore the receivers unbalanced audio output to In Phase select NORMAL Exit this setup screen by pressing the PREV MENU button TxBatt The TxBatt setup screen allows the selection of the ex act battery type being used in the transmitter to provide more accurate battery level monitoring Four different types of batteries are commonly used in Lectrosonics transmitters 9 Volt alkaline 9 Volt lithium AA alkaline and AA lithium Rechargeable NiMH batteries can also 12 be used in the transmitters see TIMER below Cor rectly set this feature will ensure that adequate
33. imi larly if the group has only a single entry rotating the knob will move to that frequency but have no subsequent effect Rio Rancho NM Note An exclamation mark in the lower right corner indicates that the current frequency is not in the current group If it persists when the knob is rotated that is only because the group is empty 4 To add a frequency to the group it is first neces sary to be able to tune to it Double click rapidly press twice the MENU knob to gain access to all frequencies 5 Rotate the knob to the desired frequency Add the frequency to the group by holding down the PREV MENU button while pressing the MENU knob A triangle will appear to the left of the frequency indi cating that it is a member of the group 6 In a similar manner rotate the knob to navigate to any frequencies you wish to add then add them by holding down the PREV MENU button while pressing the MENU knob If you accidentally add a wrong frequency it can be removed the same way it was added by holding down the PREV MENU but ton while pressing the MENU knob 7 Once you are finished added frequencies press the MENU button once to return to normal group tuning Deleting User Group Frequencies 1 From the Tuning setup screen select one of the user group tuning modes group U or group V 2 Go to the Freq setup screen 3 Rotate the MENU knob to navigate among the frequencies in the group stopping on the one you wi
34. in the adjacent blocks BLOCK 28 BLOCK 29 FREQ SW SET US TV CH FREQ US TV CH 717 300 1955 717 900 d tv55 718 800 E tv55 719 400 il tv55 720 700 tv55 721 600 155 722 100 156 722 900 156 754 900 705 900 757 100 706 600 757 800 707 900 759 100 709 700 760 900 710 600 761 800 713 200 764 400 715 500 BLOCK 27 FREQ SW SET 766 700 BLOCK 28 BLOCK 29 US TV CH FREQ SW SET US TV CH FREQ SW SET US TV CH 621 300 45 1v39 646 900 45 tv43 672 500 45 tv47 698 100 45 tv52 723 700 45 1956 749 300 45 tv60 621 900 4B 1v39 647 500 AB 1v43 673 100 4B tv47 698 700 AB tv52 724 300 4B 749 900 4B tv60 622 800 54 tv39 648 400 54 1 43 674 000 54 tv47 48 699 600 5 4 tv52 725 200 54 750 800 54 tv60 623 400 tv39 649 000 5 tv43 674 600 700 200 5 tv52 725 800 751 400 5 tv60 624 400 64 tv39 650 000 64 tv43 44 675 600 64 701 200 64 tv52 726 800 6 4 752 400 64 tv61 625 600 TA 651 200 7 0 676 800 7 0 702 400 7 0 tv52 728 000 7 0 753 600 7 0 tv61 626 100 75 651 700 75 677 300 75 702 900 7 5 tv52 728 500 75 754 100 7 5 626 700 7B 652 300 7B 677 900 78 703 500 TB tv52 729 100 LB 754 700 LB 632 300 B3 657 900 B3 683 500 B3 709 100
35. ion Position remote antennas at least three or four feet apart and not within three or four feet of large metal surfaces If this is not possible try to position the antennas so that they are as far away from the metal surface as is practical It is also good to position the receiver so that there is a direct line of sight between the transmitter and the receivers antenna In situations where the operating range is less than about 100 feet the antenna positioning is much less critical The an tennas can also be configured with one whip connected to one antenna input of the receiver and a remote antenna connected to the other antenna input Be careful about the length of cabling from antenna to receiver Long cable runs can have serious signal loss Lectrosonics has in line RF amplifiers suitable for compensating for long cable runs Contact your dealer or the factory for more information A wireless transmitter sends a radio signal out in all di rections This signal will often bounce off nearby walls ceilings etc and a strong reflection can arrive at the re ceiver antenna along with the direct signal If the direct and reflected signals are out of phase with each other a cancellation may occur The result is a dropout A dropout can sound like audible noise hiss or swishing or in severe cases it may result in a complete loss of both the carrier and the sound Moving the receiver s antennas even a few inches will change
36. itter and see if the RF meter on the receiver drops to zero If an interfering signal exists the meter will indicate it Refer to the frequency coordination section to establish a different operating frequency Rio Rancho NM 19 R400A Replacement Parts and Accessories DCR12 A4U AC power supply with US type 2 pin plug on hous ing 100 to 240 VAC input 12 VDC 400 mA regu lated output A500RA xx UHF flexible whip antenna with Right Angle BNC Specify frequency block last two digits xx specify frequency block for example A500RA21 A500RA22 etc SNA600 Collapsible dipole antenna adjustable from 550 MHz to 800 MHz Ideal for situations where a full 360 degree receiving pattern is required as op posed to a directional pattern ALP Series Antennas The Shark fin Log Periodic Dipole Array LPDA provides useful directional pattern over 500 to 800 MHz range Ideal for portable applications includ ing temporary setups for field production ALP Se ries antennas are not intended to be left outdoors permanently ARG15 ARG100 Coaxial cables for remote antennas are available from Lectrosonics in a variety of lengths from 2 to 100 ft Cables include Velcro tie wraps 35664 Strip of four adhesive backed feet 0 75 inches square RMPR400 1 Single space rack conversion kit for single R400A receiver Includes extension cables for mounting antennas on front panel RMPR400 2 Single space rac
37. k The output level range is 50dBu to 5dBu and can be adjusted in 1dB increments by rotating the MENU control Pressing the PREV MENU button exits the setup screen Output loads less than 100 ohms are not recommended Level U The Level U setup screen displays the audio output level of the receiver in dBu at the unbalanced 1 4 inch jack The output level range is 55 dBu to 0dBu and can be adjusted in 1dB increments by rotating the MENU control Pressing the PREV MENU button exits the setup screens Output loads less than 50 ohms are not recommended Tuning The R400A offers 7 tuning modes 4 factory set fre quency groups Fact Grp A thru D 2 user programma ble frequency groups User Grp U and V and normal tuning mode the default In normal tuning mode all 256 channels are available Rio Rancho NM The four factory set groups limit tuning to specially se lected intermod free frequencies See Frequency Co ordination section for more information User groups U and V similarly limit tuning to user selected frequencies Note Changing tuning modes does not directly change the receiver s tuning It merely changes the behavior of the tuning knob the when the Freq setup screen is subsequently accessed When switching to a new group tuning mode it is to be expected that the receiver will be tuned initially and temporarily to a channel that is not a part of the newly selected group Selecting a new frequency from
38. k conversion kit for dual R400A receivers Includes extension cables for mounting antennas on front panel DCR12 A4U Sy Rye SNA600 SN ALP Series LECTROSONICS INC UHF Wireless Diversity Receiver Service and Repair If your system malfunctions you should attempt to correct or isolate the trouble before concluding that the equipment needs repair Make sure you have followed the setup procedure and operating instructions Check the interconnecting cables and then go through the Troubleshooting section in this manual We strongly recommend that you do not try to repair the equipment yourself and do not have the local repair shop at tempt anything other than the simplest repair If the repair is more complicated than a broken wire or loose connection send the unit to the factory for repair and service Don t attempt to adjust any controls inside the units Once set at the factory the various controls and trimmers do not drift with age or vibration and never require readjustment There are no adjustments inside that will make a malfunctioning unit start working LECTROSONICS Service Department is equipped and staffed to quickly repair your equipment In warranty repairs are made at no charge in accordance with the terms of the warranty Out of warranty repairs are charged at a modest flat rate plus parts and shipping Since it takes almost as much time and effort to determine what is wrong as it
39. lect BACK then push the MENU control to return to the TopMenu window LockSet LockSet is used to lock the R400A settings When locked the use of the MENU functions is limited to view only and attempts to change selections will result in a screen displaying the word LOCKED To Unlock Use LockSet Menu The Scan and SmartTune functions are disabled when the unit is in the LOCKED state To LOCK the R400A Press the MENU control to enter the TopMenu then rotate the MENU control to select LockSet Press the MENU control to open the LockSet window rotate the MENU control to select LOCK then push either the MENU control or the PREV MENU but ton to exit to TopMenu To UNLOCK Repeat the steps above and select NOT LOCKED SmartTune SmartTune automates the discovery of a clear operating frequency It does this by scanning all the available operating frequencies within the system s fre quency block range in 100 kHz increments and then selecting the frequency with the least amount of RF interference When SmartTune is complete it returns to the Main Window displaying the operating frequency and transmitter switch settings for the clear channel discovered during scanning Scan Navigate to the SCAN option from the menu then press the MENU control to activate the scan function The receiver begins scanning the receiver s frequency block The receiver will continue to scan accumulating the highest peaks with each s
40. ms for multiple channel wireless systems It does this by identifying potential intermodulation problems and listing compat ible frequencies and frequency groups This chart can be used with all Digital Hybrid Wireless 400 Series receiv ers The chart divides the frequency blocks used in the North American market into Set 1 and Set 2 then further di vides each row into two groups of eight frequencies each These frequency groups are labeled A and B and C and D and correspond to the factory set frequency groups Groups A B C and D described in the Tuning Setup Screen 16 Understanding and using the Frequency Compatibility Chart is not as difficult as it first appears There is a pat tern of compatible frequencies that becomes apparent as illustrated on the Frequency Compatibility Diagram on the next page The following guidelines should be observed when selecting compatible frequencies 1 Set 1 and Set 2 are NOT compatible Proper coordination requires that all frequencies be taken from either Set 1 or Set 2 but not a combina tion of the two The remaining guidelines make the assumption that you are choosing frequencies within one frequency set 2 Frequencies within an individual frequency block in the same Set are compatible Example All 16 frequencies in Block 25 Group A and B 3 Frequencies from adjacent blocks but different Groups are compatible Example Block 21 Group C frequencies are com
41. ns can cause serious prob lems The phase diversity network and PIN diode RF switches are controlled by the microprocessor using a sophisticated algorithm to use both antennas simultane ously RF Front End and Mixer The R400A is frequency agile and can be set to operate on any one of 256 frequencies within its tuning range To significantly reduce unwanted interference and inter modulation problems the R400A s front end is tuned to the desired frequency band and rejects or tunes out unwanted out of band signals Two tuned HI Q ceramic transmission line resonators prior to a low noise high current RF amplifier provide good selectivity A robust RF amplifier and LC bandbass filter provide added insurance against strong RF interference The overall design ensures stability selectivity and precise gain in order to handle strong RF signals without input overload IF Amplifiers and SAW Filters The first IF low noise amplifier is controlled with feed back regulation and drives a quartz SAW Surface Acoustical Wave filter The 244 MHz SAW filter com bines sharp tuning constant group delay wide band width and excellent temperature stability far superior to conventional LC filters The second mixer converts the 244 MHz first IF signal down to 10 7 MHz The second IF is filtered through two ceramic filters for sharp selec tivity then itself is converted down to 300 kHz and fed to the Digital Pulse Counting Detector R400A
42. ntenna 8 Rear Panel Features wisiiccicccccsscstscsssnceseccsisisadeisisedsadcsdnacentanedsasiansnadesencessistuceannussuadeuvasndaeduantanscadeisastashdaadbaesaodsadeiatesaaidisuaancanatetsdaadstuianands 8 Antenna Use and Placement wisccicccsiccsccssiscssetcncssecnserssseacenscecnesnocssussaseuccearascoaienssauassaienseuuetesviauenaaderdennsisauaacedsauuransodueeaduceadaushacauaeienncasdead 9 400 Options er L 10 HA400A Menu Map eroe eei e Ere AAA ede eva erie ee Sed a ea ee e Sei regne ed d e eu nee yere e Ue dc res ep dere od pau ves 10 Main Ser en Display E 10 Men Nae WAA 11 Iul c 11 Eco Em 11 NB 11 Bt ER 11 E 11 AAA Md uU UM E 11 M 11 EIU 11 PiOB P
43. nterfer ence is as follows 1 Start with all transmitters off 2 For each channel use SmartTune to choose a clear frequency Tune the corresponding transmitter and leave it on placing it as close to the receivers as it will be in actual use 3 To check for intermodulation problems turn each transmitter off briefly in turn making sure that the corresponding receivers RF meter shows little or no interference while its transmitter is off For each trial all transmitters must be on except the one be ing checked 4 In the event that an intermodulation problem is detected use SmartTune to retune the affected receiver and transmitter and then repeat step 3 It will be necessary to redo all the trials in step 3 as the newly tuned transmitter may cause new inter modulation problems that did not exist during earlier trials Programming User Groups For users who do their own frequency coordination the R400A offers two user configurable frequency groups Up to 16 frequencies can be stored in a user group Use the following procedure to add or remove frequen cies from either user group User Group U or User Group V Adding User Group Frequencies 1 From the Tuning setup screen select one of the user group tuning modes Group U or Group V 2 Go to the Freq setup screen 3 Rotate the MENU knob to navigate among the frequencies in the group If the group is currently empty rotating the knob will have no effect S
44. oise Reduction SmartNR The wide dynamic range of digital hybrid technology combined with flat response to 20 kHz makes it possi ble to hear the 120 dBV noise floor in the mic preamp or the usually greater noise from the microphone itself To put this in perspective the noise generated by the recommended 4 k Ohm bias resistor of many electret lavaliere mics is 119 dBV and the noise level of the microphone s electronics is much higher In order to reduce this noise and thus increase the effective dy namic range of the system the R400A is equipped with a Smart Noise Reduction algorithm which removes hiss without sacrificing high frequency response The Smart Noise Reduction algorithm works by at tenuating only those portions of the audio signal that fit a statistical profile for randomness or electronic hiss SmartNR offers significantly increased transparency over the sophisticated variable low pass filters used in previous designs Desired high frequency signals having some coherence such as speech sibilance and tones are not affected The Smart Noise Reduction algorithm has three modes selectable from a user setup screen Off Normal and Full OFF No noise reduction is performed and com plete transparency is preserved All signals pre sented to the transmitter s analog front end in cluding any faint microphone hiss will be faithfully reproduced at the receiver NORMAL factory default Enough
45. patible with Block 22 Group D frequencies 4 Frequencies from adjacent blocks and the same Group are NOT compatible Example Block 26 Group B frequencies are NOT compatible with Block 27 Group B frequencies It is highly recommended that you choose frequencies that are in the same set and same group By following these guidelines it is possible to locate a number of operating frequencies early in the production that are free from intermodulation then refine the list during system setup LECTROSONICS INC UHF Wireless Diversity Receiver Using SmartTune and the Scan Function The SmartTune feature automatically scans the receiver s tuning range and tunes to the frequency with the least RF interference The transmitter can then be tuned to match the receiver If only one wireless chan nel is to be used this simple one step tuning is all that is required In the event that multiple wireless channels are to be used at the same location it is still possible to use the SmartTune feature as a tuning aid but it will be necessary to check for intermodulation interference It is possible for example that the second transmitter combined with another signal in the environment could generate an intermodulation product that interferes with the first receiver That interference would not have been present on the first channel until the second channel was powered up The basic procedure to test for intermodulation i
46. ptions R400A Menu Map Main Window TopMenu SetUpRx LockSet can SmrtTun Exit Freq TV28 Freq gt NORMAL 557 100MHz Level Bal Out LockSet gt 0958 NOT 00 dBu Level U Level UnBal Out Scan jin WA 00 dBu L 1 low poc Tuning Coarse Tuning Normal 1 Scan Scroll Compat Tuning n Compat 400 Series Fact Grp As Fine lt lt Compat Tuning Scan Scroll Tone Bal Out Tone s Faci Be 00 Enor Re SmartTuning f Compat Tunin SmrtTun 9 Tone UnBal Out 9 in progress Tone U m 400 dBu 100 Series Fact Grp Ca D 5 Compat Tuning PilotBP J V ff 3 Compat Tuning Return to Phase B Phase Bal Out User Grp Ue Main Window ae MODE 3 Compat Toning Y Phase U p Phase UnBal Out MODE 6 ser Grp Ve NORMALS gt TxBatt TxBatt ey OVLTH i S SmartNR SmartNR NORMAL BACK Return to Top Menu JJ Main Screen Display Icon Description P Y v _ _ _ 557 100 NORM C3 10 40 20 0 Pilot tone indicator A steady P is displayed when the transmitter pilot tone is present in compatibility modes supporting pilot tones only The icon flashes if no pilot tone is detected and changes to a small b if the pilot tone has been bypass
47. ronto Ontario M5V 2J1 Rio Rancho NM Shipping address Lectrosonics Inc 581 Laser Rd Rio Rancho NM 87124 USA E mail sales lectrosonics com Telephone 416 596 2202 877 753 2876 Toll free 877 7LECTRO 416 596 6648 Fax Telephone 505 892 4501 800 821 1121 Toll free 505 892 6243 Fax E mail Sales colinb lectrosonics com Service joeb lectrosonics com R400A Specifications and Features Operating Frequencies MHz Frequency Adjustment Range Channel Separation Receiver Type Frequency Stability Front end bandwidth Sensitivity 20 dB Sinad 60 dB Quieting Squelch quieting AM rejection Modulation acceptance Image and spurious rejection Third order intercept Diversity method FM Detector Antenna inputs Audio outputs FRONT PANEL CONTROLS AND INDICATORS PUSH FOR MENU ROTATE TO SELECT control POWER PREV MENU button Industry Canada Certification 8024A R400 Block 470 470 100 495 600 Block 19 486400 511 900 Block 20 512 000 537500 Block 21 537 600 563 100 Block 22 563 200 588 700 Block 23 588 800 607 900 614 100 614 300 Block 24 614 400 639 900 Block 25 640 000 665 500 Block 26 665 600 691 100 Block 27 691 200 716 700 Block 28 716800 742 300 Block 29 742 400 767 900 Export Only 25 5 MHz in 100 kHz steps 100 kHz Triple conversion superheterodyne 244 MHz 10 7 MHz and 300 kHz 30 001 30 MHz 3 dB 1 u
48. se the PREV MENU button and the MENU control simultane ously The TIMER mode is most useful for batteries as they do not exhibit reliably identifiable voltage drops as they discharge For compatibility modes other than 400 Series and 200 Series no battery telemetry information is available so the TxBatt setup screen offers TIMER as the only choice Exit this setup screen by pressing the PREV MENU button SmartNR Available in 400 Series Compatibility Mode only the SmartNR setup screen is used to select one of three noise reduction modes OFF No noise reduction is performed and com plete transparency is preserved All signals pre sented to the transmitter s analog front end in cluding any faint microphone hiss will be faithfully reproduced at the receiver NORMAL factory default Enough noise reduc tion is applied to remove most of the hiss from the LECTROSONICS INC UHF Wireless Diversity Receiver mic preamp and some of the hiss from lavaliere mi crophones The noise reduction benefit is dramatic in this position yet the degree of transparency maintained is exceptional FULL Enough noise reduction is applied to remove most of the hiss from nearly any signal source of reasonable quality assuming levels are set properly at the transmitter Rotate the MENU control to select the noise reduction mode Exit this setup screen by pressing the PREV MENU button Back Rotate the MENU control to se
49. sh to delete 4 Delete the frequency by holding down the PREV MENU button while pressing the MENU knob The arrow symbol in the lower right corner will change to an exclamation mark indicating that the currently tuned frequency is no longer a member of the cur rent group 5 Continue in a like manner repeating steps 3 and 4 until you have deleted all the frequencies you wish to remove from the group Call Lectrosonics Lectrosonics uses a proprietary computer program to perform thousands of calculations and identify vari ous interfering signals Potential problems and trouble areas can be identified in advance and proposed new frequencies or other solutions can be suggested This service is offered to authorized Lectrosonics dealers and other customers who are using Lectrosonics wire less microphone and wireless IFB systems 17 RaOOA Troubleshooting Symptom LCD display not active LCD Message Appears Fatal Error DSP Failed to Initialize Warning Supply Voltage Out of Range Warning Check Freq May Be Mistuned PILOT indicator is solid but no sound Solution External power supply disconnected or inadequate Main power supply fuse tripped Turn the receiver off remove the cause of the overload and turn the receiver back on Wrong polarity power source The power input jack requires POSITIVE to be on the center pin This indicates an internal error Please contact the factory for assistance
50. t level setting for both received audio and the setup tone The level set here will be retained in the receive mode superseding settings made in the Level B setup screen Tone U The Tone U setup screen switches from received audio at the unbalanced 1 4 inch audio output jack to an in ternally generated 1kHz audio test tone for precise level YA R400A matching with other externally connected equipment without actually going on the air The Tone level has a range of 55dBu to OdBu and is adjusted in 1dB increments by rotating the menu con trol The test tone has 1 distortion and is intended for confirmation of output levels only Pressing the PREV MENU button exits the setup screen Warning There is only one audio output level setting for both received audio and the setup tone The level set here will be retained in the receive mode superseding settings made in the Level U setup screen PilotBP The R400A always powers up with the pilot tone bypass mode disabled a pilot tone is required from the trans mitter to unsquelch the receiver To enable pilot tone bypass mode in the PilotBP window rotate the MENU control to select BYPASS then press the PREV MENU button To return to normal operating mode pilot tone bypass mode disabled rotate the MENU control to select NORMAL then press the PREV MENU button Exit this setup screen by pressing the PREV MENU button Note No pilot tone is used in 100 Ser
51. the Freq screen clears this condition as only frequencies in the group are offered Compat The Compat setup screen is used to select the compat ibility mode allowing the R400A to operate with a va riety of transmitters The available compatibility modes are 400 This is the factory default setting and works with all Lectrosonics 400 Series Digital Hybrid Wire less transmitters This mode offers the best audio quality IFB This mode works with all Lectrosonics IFB compatible transmitters 100 This mode works with all Lectrosonics 100 Series compatible transmitters 200 This mode works with all Lectrosonics 200 Series compatible transmitters MODE 3 and MODE 6 These modes work with a number of non Lectrosonics analog transmitters Contact the company for a list of compatible trans mitters for each mode Mode 6 available on units with Serial Number 236 and up Tone B The Tone B setup screen switches from received audio at the balanced XLR audio output jack to an internally generated 1kHz audio test tone for precise level match ing with other externally connected equipment without actually going on the air The Tone level has a range of 50dBu to 5dBu and is adjusted in 1 dB increments by rotating the menu con trol The test tone has 196 distortion and is intended for confirmation of output levels only Pressing the PREV MENU button exits the setup screen Warning There is only one audio outpu
52. the sound of the dropout or often eliminate it A dropout situation may also be either better or worse as a crowd fills or leaves the room or when the transmitter or receiver is operated in a different location The R400A receiver offers a sophisticated diversity de sign which overcomes dropout problems in almost any situation In the event however that you do encounter a dropout problem try moving the receiver or antennas If the antennas are attached directly to the receiver moving the receiver at least three to four feet from its current location If dropouts are still a problem try moving the receiver closer to the transmitter If remote antennas are used try moving one or both of the remote antennas at least three or four feet from their current location This may alleviate the dropout problem at that location If dropouts are still a problem try moving the remote an tennas to an entirely different location Lectrosonics transmitters radiate power very efficiently and the receivers are very sensitive This reduces dropouts to an insignificant level If however you do encounter dropouts frequently call the factory or consult your dealer There is probably a simple solution Rio Rancho NM Poor antenna placement Good antenna placement Better antenna placement Front mounted whips with optional rack mount Optimal antenna placement with optional remote antennas R400A R400A Menu O
53. ubsequent scan until stopped by the user Data gathered during the scanning pro cess is retained until Scan mode is exited To stop scanning but not exit Scan mode press the MENU control once The display switches to the Coarse View window In this mode each vertical band of the display represents four frequencies 400 kHz Rotate the MENU control to scroll the cursor across the tuning range As the cursor scrolls across the Rio Rancho NM Main Window R400A 557 100 NORM C3 em Mtm s TopMenu Rx can SmrtTun xExit SetUpRx Frequency Scan Window V LockSet S 1000 AC 2 R 1v TV Scan Freq Scan gt n 28 Window Course Scan Scroll xExit Return to Main Window Frequency Scan Window Coarse Fine Scan Scroll frequency band Frequency Select Switch settings for the associated transmitter are shown in the upper right corner of the screen Double pressing the MENU control switches the display to Fine View which displays an expanded portion of the spectrum around a fixed vertical cursor In Fine View each vertical band represents one frequency 100 kHz As with the Coarse View cursor movement across the frequency band results in the displaying of the associ ated transmitter Frequency Select Switch settings in the upper right corner of the screen In Fine View the fixed vertical center bar in th
54. warning will be provided in advance of battery failure In 400 Series and 200 Series compatibility modes the TxBatt menu offers five choices 9V ALK Transmitter using a 9V alkaline battery Monitors voltage with battery icon in main window The battery voltage is displayed in the TxBatt setup screen 9V LTH Transmitter using a 9V lithium battery Monitors voltage with battery icon in main window The battery voltage is displayed in the TxBatt setup screen AA ALK Transmitter using a AA alkaline battery Monitors voltage with battery icon in main window The battery voltage is displayed in the TxBatt setup screen AA LTH Transmitter using a AA lithium battery Monitors voltage with battery icon in main window The battery voltage is displayed in the TxBatt setup screen TIMER Transmitter using any battery Displays the cumulative time that the communications link is active The time is displayed in two locations the lower left corner of the TxBatt setup screen and the upper left corner of the Main Window display No battery icon is displayed in TIMER mode The colon blinks when the TIMER is running and also indicates that the communications link is active When either the transmitter or the R400A receiver is powered OFF the timer will retain the accumulated time and resume counting only when a signal is detected from the transmitter To reset the timer navigate to the TIMER setup screen and quickly press and relea
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