EXC/RTX18 BROADCAST STL VHF/UHF/SHF 200
Contents
1. 9 5 BATTERY OR D C SUPPL Y 11 6 SERVICE AND MAINTENANCE 14 7 GUARANTEE sisssecdscseccscigdiccadsccetecsccotecssscocseccccccaceoseccogeo seevoesesescssacecsececeesceteciSeseves 14 8 SERVICE MANDA Disiscleccicccsdecccleisccteyleccssccacsvecenglacsecssoucioccestecesbuesssccssey sedsoosesecess 15 8 1 TRANSMITTER INTERNAL DESCRIPTION 15 82 RECEIVER INTERNAL DESCRIPTION 16 9 STL MANAGING FIRMWARE 17 91 INTRODUCTION pcr 17 92 PASSWORD TION 18 93 FACTORY DEFAULT PASSWORDS 19 94 MENU AND COMMANDS DESCRIPTION 20 95 TRANSMITTER MENLU 22 9 6 TRANSMITTER SETUBP 27 97 RECEIVER MENLU S gt 31 98 RECEIVER SETUP S Swa Sq aene ck 32 10 TRANSMITTER INT2. ELE EXC RTXIS BROADCAST STL VHF UHF SHF 200 960 amp 1400 2600 MHz USER AND MAINTENANCE MANUAL EXC18 C e Warning O SIEL MI LAND SUAE On the oir O 18 W r 1 0 Remote O escape ENTER EG e RTX18 SIEL MILANO ITALY RDXi8 SW rel 1 0 in G iD E nm 3 E 3 G SIEL Sistemi Via Toscana a pi BUCCINASCO MD ITALY tel 39 2 457133 00 fax 457133 51 Email siel siel com Rev 1 2 02 05 amp sis 11 er h A EXC RTX18 USER amp MAINTENANCE MANUAL rev 1 2 02 05 El ELE RONIC CONTENTS 1 INTRODUCTION funscvcccccccccccccssccscscitccsccccscocsssssseesccsaceucossssossssctecsesessccdcsovesesevdcossece 3 2 GENERAL DESCRIPTION 4 3 TECHNICAL FEATURES sscscccciccctcssccccctocsccicctcoccssscsoassdsssecssdsscecsossssoscosseessccsecssess 5 3 1 FRONT PANEL COMMANDS AND CONTROL S 5 32 REAR PANE ES svsisccccescscicsesiccccscscsccsscccscsssscncocedpeZeQconadesctvnassddesoasccscsceccvetescucsdss 6 3 3 TECHNICAL SPECIFICATIONS 7 4 REMOTE CONTROL FUNCTION S
3. 90 250 Vac Battery absorption lt 0 6A 24 Dimensions without handles 19 2 un std rack 483 x 88 x 334 mm 457133 00 fax 457133 51 Email siel siel com PAGE 8 ELE a BRNO IA EXC RTX18 USER amp MAINTENANCE MANUAL rev 1 2 02 05 REMOTE CONTROL FUNCTIONS Both the Stl transmitter and receiver are completely presettable and controllable by the front panel keyboard and display The same functions are remotely possible through the serial RS232 port which is located on the rear of each equipment To control the equipment is anyway required some purposely developed software which is not available at the present as a standard option Some simple demonstration program may be given only as a start point to development In addition to the serial port a parallel one is provided on the rear on which are wired some signal and control wires Both the 2 ports are described in the following paragraphs RS232 port The RS232 port manages only Tx Rx and Return data signals with no handshake Being the two former signals inverted wired to the port it needs a simple straight wired serial cable with appropriate connectors to connect to a PC Usually a female DB9 or DB25 female goes to the PC port and a male DB9 connector at the transmitter end Appropriate software is needed for communication Do not connect the cable with either transmitter or PC on Parallel remote control port This port accommodates so
4. siel com PAGE 6 amp 9 g ELE ELETTRONICO EXC RTX18 USER amp MAINTENANCE MANUAL rev 1 2 02 05 TECHNICAL SPECIFICATIONS Factory preset frequency ranges 2152245 Mhz 240 270 Mhz 300 340 Mhz 340 380 Mhz 400 440 Mhz 430 470 Mhz 810 850 Mhz 850 890 Mhz 890 930 Mhz 930 960 Mhz 1429 1433MHz 1510 1530MHz 1660 1670MHz 2367 5 2372 5MHz 2440 2 450MHz 2468 1 2483 3MHz Other sub ranges on request Modulation FM 75 kHz peak dev 180kF3E mono 256kF3E stereo Synthesis step 10kHz 215 960 Mhz 100 kHz 1 422 6 Ghz Composite Mpx output response 15 Hz 67 kHz 0 1 0 5dB 6dB 100 kHz 20 dB 125 kHz Monitor output wide band response 15 Hz 100 kHz 0 1 1 5dB 3 dB typ Q 125 kHz 6 dB typ 160 kHz Mono stereo decoded response 30 Hz 15 kHz 0 2dB S N ratio 30 20000Hz rms gt 70 dB 76 typ mono gt 66 dB 72 typ stereo Modulation distortion 100 dev kHz 30 7500 Hz mono lt 0 1 0 03 typ stereo Ich lt 0 30 0 20 typ mono lt 0 25 0 12 typ stereo Ich lt 0 30 0 20 typ Stereo crosstalk typical gt 50 dB 400 10000 Hz gt 40 dB 100 15000 Hz Alarm RF LF disable Low RF field RS232 for monitoring and control Mains requirements 95 250 Vac 50 60 Hz 22 0 28 0 Vcc Operating temperature range 0 35 recomm 10 45 C max EXC18 TRANSMITTER ONLY Frequency error lt 2 5 ppM Frequency drift lt 1 ppM yea
5. stl to be used for broadcast repeaters in conjunction with any standard FM or AM transmitter Design of this apparatus derives from the well known EXC 16 series stl coupled with digital control techniques used on the EXC25 FM transmitter It allows the reception of mono or stereo signals and its retransmission without using any additional stereo coder on the receiving end in both cases the LF output signal from the receiver must be sent to the stereo input linear or not pre emphasised of the local FM rebroadcast transmitter The stl is built for several different frequency ranges from VHF to SHF While the exterior cabinet the controls the basic circuitry and the performances are the same some internal components vary as required to cover this wide frequency band Usually these components are the local oscillator the power amplifier and the input output filters Two main models are built one for the 200 960 MHz and the other for the 1400 2600 range in which the internal components and modules are exactly the same with some minor tuning adjustments These bands are further subdivided in small 10 to 50 MHz factory adjusted sub ranges which must be specified in the order In the preset sub range the frequency and power may be freely changed on the field Being the apparatuses completely digitally controlled they are extensively on field program mable by front panel or remotely in every respect The alphanumeric display permi
6. ERNAL MODULES amp ELECTRICAL DIAGRAMS 35 RECEIVER INTERNAL MODULES amp ELECTRICAL DIAGRAMS 57 Ww SIEL Sistemi elettronici Via Toscana 59 20090 BUCCINASCO MI ITALY tel 39 2 457133 00 fax 457133 51 Email siel siel com PAGE 2 ELE a BRNO IA EXC RTX18 USER amp MAINTENANCE MANUAL rev 1 2 02 05 EXC RTX18 BROADCAST STL FAMILY SERIES VHF UHF 200 960 amp SHF 1400 2600 MHz INTRODUCTION The EXC RTX18 series stls are the result of experience gained by SIEL during years of producing FM broadcast equipment transmitters stl and stereo encoders These radio links were specifically designed to comply with the latest international standards and the requirements of advanced broadcasters meeting tighter specifications than usually required at an affordable cost Great care was spent into producing a Hi Fi quality modulated signal with low residual noise and distortion The RF signal is also free from spurious and harmonic components to a higher degree than required by CCIR European USA and most other national standards To obtain this outstanding performance SIEL strongly recommend to rely on qualified personnel to install and verify the equipment which makes up the radio station i e the stl the transmitters and the power amplifiers the corresponding antennas cables and connectors This will assure to achieve the best performance and stability in time To this aim
7. SIEL especially recommend that their equipment should not be tampered with by unskilled personnel and its after sale service is available to customers for any technical problem Before proceeding to installation please carefully read at least the general installation part of this manual to gain confidence with the equipment These equipment are very stable and changes to the internal pre setting other than frequency and few other options are not usually required but if they are once again they must be done by skilled personnel with proper instrumentation and service documentation Improperly tampering with the settings may harm the apparatus or jeopardize the guaranteed performance THIS EQUIPMENT COMPLIES WITH ALL RELEVANT C EMI EMC AND SAFETY REQUIREMENTS ETSI EN300454 1 2 AND ETS301489 01 11 STANDARDS NO INTERNAL ADM OR PRESETTING IS REQUIRED DURING NORMAL OPERATIONS THE APPARATUS SHALL BE PROPERLY EARTHED AND BE OPERATED WITH ALL THE COVERS CLOSED TO PREVENT ELECTRICAL HAZARDS AND COMPLY WITH EMC STANDARDS MAINS VOLTAGE MAY KILL SIEL Sistemi elettronici Via Toscana 59 20090 BUCCINASCO MI ITALY tel 39 2 457133 00 fax 457133 51 Email siel siel com PAGE 3 er lt A EXC RTX18 USER amp MAINTENANCE MANUAL rev 1 2 02 05 Q ELE e EEIRONCI GENERAL DESCRIPTION The EXC18 transmitter and its companion RTX18 receiver are the core of a high quality synthesised studio to transmitterlink
8. me lines for simple direct control monitor on a DB9 male connector They are TRANSMITTER Pins1 5 8 Ground Pin 2 On The Air a 12V 10kW signals that the transmitter deliver substantial RF power It is not granted that the output power is the preset one Pin 3 Direct power a signal proportional to direct power is present with a pseudo square law Range is 0 5Vdc 1kQ impedance Full power voltage usually ranges 3 5 to 4 V Pin 6 RF enable a shorted circuit to ground disables RF Maximum voltage and current available are nearly 10V and 1mA Pin 7 Alarm logic low signal means alarm Correct functioning is signalled by 12V with10kQ impedance Maximum current sinking capability 10mA Pins4 amp 9 future upgrades Ww RECEIVER Pins 1 amp 5 Ground Pin 2 modulation on a low logic state signals modulation is present on the received signal on the contrary a high logic state 12V con 10kQ warns on modulation loss This function is optional and depends on the firmware It is not comprised as a standard in the actual revision SIEL Sistemi elettronici Via Toscana 59 20090 BUCCINASCO MI ITALY tel 39 2 457133 00 fax 457133 51 Email siel siel com PAGE 9
9. ofitted with minimum required technical skill The powerful internal software and monitoring functions recognise their presence and enable the functions A universal switch mode power supply permits operation in the extended 95 250 Vac range with no intervention and a 24 V back up battery input is provided too SIEL Sistemi elettronici Via Toscana 59 20090 BUCCINASCO MI ITALY tel 39 2 457133 00 fax 457133 51 Email siel siel com PAGE 4 amp 9 g ELE ELETTRONICO EXC RTX18 USER amp MAINTENANCE MANUAL rev 1 2 02 05 TECHNICAL FEATURES FRONT PANEL COMMANDS AND SIGNALLING C Excis 9 O SS EE e w BB eee x IK E 9 C 2 stoma amp Bis WY Sy Yo key The transmitter and receiver set are fitted in the same kind of cabinet and are extremely similar on the front view Both the equipment are clean and easy to control from the front panel The wide alphanumeric display and the keyboard permit a simple self explanatory menu driven navigation through the various options Great care was taken in the design of the software to allow natural feeling with the controls to permit operation and programming in every respect of the apparatus without needing to ex
10. r RF output power 7W 15W 215 960 Mhz 2W 5W 1 4 2 6 Ghz Max allowed reflected power 1W 2W RF harmonic products lt 60 dBc RF spurious products c 80 dBc typ RF output 50 ohm N connector Audio Mpx input level 3 5 12 5dBm 75kHz deviation Audio Mpx input 10k ohm 600 ohm bal unbalanced SIEL Sistemi elettronici Via Toscana 59 20090 BUCCINASCO MI ITALY tel 39 Common mode rejection gt 50 dB gt 60dB typ 20 15000 Hz Audio input connectors female XLR type Auxiliary channel input level 12 5 3 5dBm 7 5 kHz dev 24 8dBm 2 kHz dev Aux channel input 10k ohm BNC type Monitor LF output 0 10dBm 75kHz dev Pre emphasis time constant 0 50 75 us 2 457133 00 fax 457133 51 Email siel siel com PAGE 7 amp 7 Et ELE ELETTRONIC SISTE EXC RTX18 USER amp MAINTENANCE MANUAL rev 1 2 02 05 S N noise ratio 30 20000Hz rms gt 70 dB 76 typ mono gt 66 dB 72 typ stereo Modulation distortion 30 15000 Hz lt 0 02 75kHz dev Stereo crosstalk gt 50 dB 100 5000 Hz gt 45 dB 50 15000 Hz Audio channels response 30 Hz 15 kHz 0 1dB Out of band audio attenuation gt 50 dB F219 kHz Deviation limiter 0 7 1 dB adjustable Mpx composite response 10 Hz 100kHz 0 1dB Auxiliary channel response 10 100 kHz 0 2dB T O lines RF disable RF power On the Air Alarm RS232 control and monito
11. ring Mains absorption 50 Wmax 90 250Vac Po 5W 80 Wmax 90 250Vac Po 15W Battery absorption lt 1 8A 24 Vdc Po 5W lt 3 0A 24 Vdc 15W Dimensions without handles 19 2 un std rack 483 x 88 x 334 mm RTX18 RECEIVER ONLY Noise figure lt 10 dB Image frequency rejection gt 50 dB 60 typ Dynamic selectivity gt 10dB typ 5F 300 kHz gt 354 typ d5F 500 kHz gt 45dB typ dF 1 0 MHz AM suppression gt 45 dB 90 10dBm C uVz70mV Usable input level Sensitivity typical Sinz 90dBm 7uV mono S N 60dB Sin 70dBm 704uV stereo 10 7 MHz 0dBm IF monitor output Wide band demodulated output response 15 Hz 120 kHz 0 1 3dB Wide band demodulated output level 6dBm MPX output level 1 5 12 dBm G Mpx output response 15 Hz 67 kHz 0 1 0 5dB SIEL Sistemi elettronici Via Toscana 59 20090 BUCCINASCO ITALY tel 39 mono or stereo decoded response 30 Hz 15 kHz 0 1dB Out of band mono or stereo audio response gt 50 dB F gt 19 kHz De emphasis time constant 0 50 75us 2 S N ratio 30 20000 Hz rms gt 70 dB 76 typ mono gt 66 dB 72 typ stereo Modulation distortion 1kHz 100 dev mono lt 0 1 0 03 typ stereo Ich lt 0 30 0 20 typ Stereo crosstalk gt 50 dB 100 5000 Hz gt 45 dB 50415000 Hz T O lines LF disable Low RF field Alarm RS232 control and monitoring Mains absorption 20 Wmax
12. tensively read the user manual Three leds signal at a glance proper functioning and warning states Two of them the Warning led and the Remote one are common to both equipment An On the air led signals the RF output on the transmitter while correspondingly a Field led on the receiver recognises an adequate received field strength The optional multilevel password management prevents tampering with the most critical options and data to unauthorised people SIEL Sistemi elettronici Via Toscana 59 20090 BUCCINASCO ITALY tel 39 2 457133 00 fax 457133 51 Email siel siel com PAGE 5 IA EXC RTX18 USER amp MAINTENANCE MANUAL rev 1 2 02 05 ELE CO 115 230Vac 50 60Hz oe ae 1 Ground b h 6 3 A G 1 7A max SS e REMOTE a Jer AY lt 3 G9 oO cE 06780 c o 20k 100k nen OG 115 230 50 60Hz e L wer E3 2 8 E dq 0 N a 528 Ve el OD 16 Ou 06780 amp All equipment inputs and outputs are allocated on the rear panel They are On both eq
13. ts easy and accurate metering adjustment and continuous monitoring of modulation levels power opera tion and internal parameters All these information may be externally available on the same RS232 I O port that may be used to remotely control the transmitter In addition to the serial I O some signals and controls are available on a parallel I O socket for easy interfacing with others analog controllers or supervisory systems A powerful 3 levels password management permits a very high degree of security and privacy as may be required in different situations As imposed by various national standards the stl transmitter incorporates sophisticated low pass audio filters on mono and stereo channels and a sharp acting modulation limiter which may be preset at peak deviation slightly higher than 75 kHz to over 170kHz or disconnected The LF input and output levels are precisely adjustable over a broad range by means of 0 54 stepwise variable attenuators The transmitter has also an auxiliary input specifically designed for RDS and SCA encoders A modulation monitor output permits to control other transmitters or STL s with the same internally processed high quality mpx signal Furthermore the sys i imised to be compatible with external digital companding encoder decoders RDS and SCA signals with almost no attenuation Optional top quality stereo encoder decoder boards may be factory installed on the transmitter receiver or field retr
14. uipment The mains supply IEC320 type outlet which incorporates the mains switch and the fuses An additional earth screw for system earthing and a 24V battery backup socket pair The audio channels input output sockets on balanced XLR type connectors The inverted wired RS232 DB9 female remote serial control port The parallel control port DB9 male type The RF antenna connector N type On the transmitter only The wide band external processed stereo or composite signal input on a grounded unbalanced BNC connector A frequency limited 20k 100kHz auxiliary channel input on a grounded unbalanced BNC connector The LF modulation output for monitoring RDS external synchronisation or re broadcast ing purpose BNC type On the receiver only The main composite signal output on two BNC type connectors in antiphase permitting direct drive of two separate transmitters or only one in balanced mode The filtered de_ mono signal on a balanced male XLR type connector An optional stereo decoded output on a couple of balanced male XLR type connectors A buffered LF monitor BNC type connector that may be internally connected as an additional composite wide band or mono signal output An IF monitor BNC type connector No internal or external preset is needed to correctly perform on 115 230Vac mains range SIEL Sistemi elettronici Via Toscana 59 20090 BUCCINASCO MI ITALY tel 39 2 457133 00 fax 457133 51 Email siel
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