Product User Manual
Contents
1. Remote gypc Center Line Level Mono Stereo l Out Send 2 Answer Caller Send 1 Line Jack Connect to a standard single line analog tele phone line Phone Jack Connect a single line analog telephone for call setup dialing or call screening Optional Auto Answer this switch enables Broadcast Host to auto matically answer an incoming call and then disconnect after the caller hangs up Auto answer will occur on the first ring Caller Output Male balanced XLR output contains only the caller s voice Send 1 Input Female balanced XLR input for signals going out to the phone line Mic or line level input Mic Line switch Sets the front end sensitivity of the Send 1 XLR jack Set to Mic if you intend to connect a dynamic micro phone directly to the Send 1 jack Set to Line if you are con necting to the output of a mic mixer Send 2 Mono Input 3 5mm mono mini jack input for signals going into the phone line Line level Stereo Output 3 5 mm stereo mini jack output contains both Send and Caller audio channels with levels determined by the Send 1 and Send 2 level controls and the Caller level control Left channel contains your local Send audio and right channel contains the Caller s audio from the telephone line Remote Control Jack 8 pin modular RJ 45 jack for connec tion to the optional JK Audio Guest Module 1 Remote Keypad or your broadcast console switch contacts Do not connec2. bring in the caller s voice from the phone line as clear and clean as possible In the real world when you send your voice down the telephone line it has a tendency to bleed over into the caller s audio The hybrid must adapt to the phone line in order to properly separate transmit and receive audio We use a 16 bit DSP Digital Signal Processor to continu ously monitor the phone line and local audio signals to deliver excellent trans hybrid loss also known as separation Our dual convergence algorithm can achieve excellent separa tion typically exceeding 50 dB Ready to go The Broadcast Host controls and connectors are clearly marked and ready for operation The Features diagrams and Operation sections on the following pages will help you pin point any minor questions that you may have If this is your first exposure to a hybrid we suggest that you read the entire manual to allow you to take advantage of all these features Any Questions Before you pick up the phone Please thumb through the rest of this manual You might find those deep technical questions are covered on later pages FCC Registration continued b The telephone equipment s FCC registration number This can be found on the bottom of your telephone equipment and c The ringer equivalence number REN for this equipment The REN is used to determine the quantity of devices which will be connected to the telephone line Excessive RENs on the telephone l
3. not available for sale in Europe Australia or New Zealand
4. the telephone equipment that is your telephone number and 10 11 Features l 2 3 4 5 6 7 JK Audio eadphongs EUA Digital Hybrid Chil Drbp Sehd Sehd 1 Send 2 Caller OIA Call Button Press this button to answer an incoming call or to connect your call through the hybrid if you have used an auxil iary phone to set up the call Drop Button Press this button to drop hang up a call Send 1 Level Adjusts the signal level that you are sending down the telephone line through the female XLR input Send 2 Level Adjusts the signal level that you are sending down the telephone line through the 3 5mm mini jack input Caller Level Adjusts the level of the incoming caller s audio as it is going out the output jacks Headphone Level Adjusts the signal level coming from the 3 5mm front panel headphone jack Headphones The 3 5mm stereo headphone jack contains a mix of both the Send input audio and the Caller audio OH LED Lit when you are on line with a call Off Hook Send LEDs Displays the signal level going to the phone line Power LED Lit when unit is plugged in and receiving power Receive LEDs Displays the signal level coming in from the phone line after the DSP This signal level will not change when you adjust the Caller knob 3 Features continued 12 13 14 15 16 17 18 19 20 21 12 13 14 15 16 17 18 19 20 21
5. Broadcast Host is covered by a 2 year warranty to be free from defective workmanship and materials In the event that the Broadcast Host needs repair you must call us to get an authorization and then carefully pack and ship it to us You will pay for shipping to us and we will pay for return back to you UPS ground No free repairs will be made if the defect was caused by misuse weather conditions or other cause except for defective workmanship or materials THERE ARE NO EXPRESSED OR IMPLIED WARRANTIES WHICH EXTEND BEYOND THE WARRANTY HERE MADE 02 07 JK Audio Inc 1311 E 6th Street Sandwich IL 60548 USA Voice 815 786 2929 Toll Free 800 JK Audio Fax 815 786 8502 info jkaudio com www jkaudio com Copyright 2007 JK Audio Inc All Rights Reserved Broadcast Host Desktop Digital Hybrid Power Drop CEEA Ag Digital Hybrid JK Audio Send Send 1 Send 2 Caller Headphones 20 9 3 E ecoa p eee gt O L Receive User Guide JK Audio Haligeye ors eys Broadcast Host will allow you to send and receive audio over analog telephone lines While this may seem like a simple task that any telephone can do the challenge is getting the best quality audio from such a limited audio path What is a Digital Hybrid The Broadcast Host digital hybrid connects audio signals to a standard analog telephone line without the variations in qual ity found with analog hybrids The main function of a hybrid is to
6. e In on your computer sound card or other recording equipment that has a stereo input e Power Connect the supplied DC power supply to the back of the Broadcast Host and then to an AC power outlet e Your Broadcast Host is now ready to take calls You may want to connect an auxiliary telephone to the Broadcast Host Phone jack so you can dial out and set up calls or simply use the Auto Answer feature to answer incoming calls e Place a test call to a quiet location Set the Send level control so that while you are speaking into the microphone the Send LEDs on the hybrid light the 20 dB green LED consistently and flash the 9 dB green LED If you flash the 3 dB red LED lower the level Set the Caller control for good recording level of the caller audio at the output jack Computer Sound Card ine Line Mic wono soo mm casi in out in d Sond 2 orem ag Digital Hybrid JK Audio 5 pidphgnte Call Drop Send Lene i Send 2 aller Hindphor ef coe a Power Ricami 5 Connection continued To Connect Broadcast Host through a mixer Mix Minus Setup Mic Remote Line E Line Level a VDC Mono j Stereo lh In Out Caller mn 0e di Send 2 Connect Caller to any Connect Aux or FX Send on line level input on mixer mixer to Send 1 on Broadcast Host Mic Line button out Line Number of microphones depends on mixer Use Ma
7. he stereo output mini jack Optional Jumper Settings If the incoming Caller level is too high and peaking the red 3 dB LED you may need to change the setting of an internal jumper Disconnect power from the hybrid and remove the cover of the Broadcast Host to locate Jumper 1 The default position for this jumper is closed covering both pins Changing the jumper to the open position either remove the jumper or cover just one pin will provide 6 dB attenuation of the incoming audio signal Auxiliary Telephone An auxiliary telephone provides you with an easy way to dial out or set up your calls Broadcast Host will disconnect the auxiliary tele phone when you press the Call button If you need to take the call back on the aux telephone simply pick up the telephone handset before the Broadcast Host s Drop button is pressed To use an auxiliary phone equipped with a Hold feature to place or screen a call first set up the call and place the call on hold When you are ready to take the call on Broadcast Host press the Call button and your telephone will automatically release the hold Your phone will operate as a normal telephone anytime you are in Drop mode Leaving the hybrid connected between the wall jack and your telephone will not affect normal use of your phone Audio will only pass through the hybrid when you press the Call button 8 Operation continued Auto Answer The Auto Answer feature will answer on the fir
8. in Outputs USB or Firewire connectors to send audio to recording device or broadcasting equipment inputs For whichever input channel you have the Caller connected to turn the corresponding Aux control to minimum usually hard left All other Aux controls should be set for what you want to send to the phone line Each Aux Send bus is completely separate from all other outputs so these Aux controls will not affect what is heard on the Main outputs or on any other Aux buses This Aux Send bus should be pre fader so you can use the fader controls to set the levels of each channel to the main output Does Broadcast Host work with Vonage IP telephony Yes however customers have reported one glitch in the Vonage system If the Broadcast Host is set to auto answer or if the call is manually answered on the first ring there will be a consider able amount of noise on the call This can be avoided by initiat ing the call from your location or manually answering after the second ring If auto answer is an integral part of your application you may contact Vonage directly to downgrade to a previous version of their firmware This information is valid as of January 23 2006 We have no direct connection with Vonage and there fore will not know when this particular problem is resolved There is a loud hum on the output of my Broadcast Host even when nothing else is connected What else could it be Make certain y
9. ine may result in the devices not ringing in response to an incoming call In most but not all areas the sum of the RENs should not exceed 5 0 To be certain of the number of devices that may be connected to the line as determined by the total RENs contact the local telephone company 3 Repair Instructions If it is determined that your telephone equipment is malfunctioning the FCC requires that it not be used and that it be unplugged from the modular outlet until the problem has been corrected Repairs to this telephone equipment can only be made by the manufacturer or its authorized agents or by others who may be authorized by the FCC For repair procedures follow the instructions outlined under the warranty section of the manual 4 Rights of the telephone company If telephone equipment is causing harm to the network the telephone company may temporarily discontinue your telephone service If possible they ll notify you before they interrupt service If advanced notice isn t practical you ll be notified as soon as possible You ll be given the opportunity to correct the problem and you ll be informed of your right to file a complaint with the FCC Your telephone company may make changes in its facilities equipment operations or procedures that could affect the proper functioning of your JK Audio product If such changes are planned you ll be notified by your telephone company 15 FCC Part 15 Compliance This equipme
10. lus any other audio minus the Caller s own voice Sending the Callers audio back to the Broadcast Host through Send 1 will cause an echo or feedback If your mixer does not have an Aux Send bus you can achieve the same results using Pan controls with the Left and Right outputs Simply pan all the microphones etc to the Left output and pan the Caller to the Right output Then connect only the Left output to the Broadcast Host Send 1 Or you may use an external Mix Minus box that will create this signal for you T Operation continued Send Signal Level The Send LEDs display the signal level as it goes out over the phone line The goal is to drive the phone line audio at high enough levels to avoid phone line noise but not so loud as to cause excessive clipping Adjust the Send level control so that you rarely see flashes of the red 3dB peak Send LED These flashes should occur only during loud speech bursts If the red LED stays lit for extended periods you can assume that much of your speech is being clipped or distorted In this case you should lower the Send volume control for the input that is causing the clipping Caller Signal Level The Receive LEDs display the strength of the audio signal coming from the phone line just after the DSP The Caller level control knob does not change what you see on these LEDs Adjust the Caller level control to give you the best signal level at the Caller XLR output or the Caller channel of t
11. nt has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense Changes or modifications not expressly approved by JK Audio can void the user s authority to operate the equipment FCC Registration Your new JK Audio product has been registered with the Federal Communications Commission FCC This product complies with the standards in Part 68 of the FCC rules 1 Connection and use with the nationwide telephone network The FCC requires that you connect this telephone equipment to the national telephone network through a USOC RJ 11C modular telephone jack This equipment may not be used with Party Line Service or Coin Telephone Lines This equipment is hearing aid compatible 2 Information for the telephone company Upon request from your local telephone company you are required to provide the following information a The line to which you will connect
12. ou are using the regulated power supply that was shipped with this unit Power supplies are not all the same need to be able to use my Broadcast Host at an office building but they only have a multi line PBX phone system Is there some way can still connect this device Talk to their phone specialist and ask for a standard analog line Any line that can be used for a fax machine or modem should work fine The auto answer or auto disconnect features may not work the same however That depends on how the PBX system is configured If this is where you will typically be working with the hybrid you might consider our innkeeper PBX instead Can I still use my phone to take regular calls or do have to disconnect the Broadcast Host when am not using it You can leave the Broadcast Host in place and your telephone will continue to operate normally Audio will only pass through the hybrid when you press the Call button 1 Will the digital hybrid provide phantom power for a con denser mic No this device will not provide phantom power If you connect a microphone directly to the Broadcast Host you should use a dynamic mic What happens if someone takes a second phone off hook when the Broadcast Host is on a call Broadcast Host will treat the other local voice the same as the caller It will attempt to keep transmit audio from returning back with the caller s audio but this becomes more difficult with this
13. scenario The local voice will certainly sound much louder than the distant caller s voice Why is there a Send 2 mini jack on the back of my Broad cast Host This is a second line level input to the Broadcast Host Here you can connect another device such as a CD player the Line Out from your computer or even the output of your personal audio player to add audio to the conversation This enables you to play background music or other sound bites during your discus sion Do not connect a microphone to this jack This is a mono input If you connect a stereo output here such as a computer line out you will only receive Left channel audio How do I record onto my computer and edit the files You will need to purchase or download any audio editing soft ware of your choice You may also need to edit the audio con figuration files on your computer or in your software to allow re cording in stereo Broadcast Host just enables you to access the audio from your phone line Why does my laptop only record half of the conversation Pm using the Stereo output on the Broadcast Host and have a stereo cable Most laptop computers only have a mic input which is mono You will need to either get a sound card with a stereo line level input for your laptop or use a USB or FireWire interface product 10 e Using balanced XLR cables not included with 1 4 TRS adapt ers if necessary for your mixer make all connections as shown On
14. st ring When Auto Answer is enabled you can still make calls manually using the Call button When finished you can either drop the call manually or al low the call to Auto Disconnect Broadcast Host will look for a CPC disconnect signal from the phone company to determine when a call has disconnected This can take up to a minute Remote Control Jack The RJ 45 jack on the back of the Broadcast Host provides con nection to an optional JK Audio Guest Module 1 remote control or it can be wired to the switch contacts on your broadcast console Do not connect this jack to the network port on your computer RJ 45 Pinout Pin 1 Ground Pin 2 Call Drop Control main control pin Pin 3 Ring OH LED Pin 4 DTMF Input Pin 5 4 3 VDC Pin 6 Reserved Pin 7 Reserved Pin 8 Reserved Momentarily connect pin 2 to pin 5 power through a 100 ohm 1 4 watt resistor to take Broadcast Host off hook Momentarily connect pin 2 to pin 1 ground through a 100 ohm 1 4watt resistor to release Drop the phone line Pin 3 contains a 4 3 VDC 40 mA current limited output to drive a signal LED We suggest adding a 200 ohm 1 4w resistor in series with an LED connected to ground Pin 5 supply output is current limited to 100 mA with a resettable fuse for use with the Guest Module and pin 2 connections Do not attempt to power additional circuitry from this pin Contact your JK Audio dealer for additional information Guest Module 1 remote keypad
15. t this jack to your computer network port Power Jack For connection only to the supplied 9VDC regu lated power supply 4 Specifications Inputs Send 1 Send 2 Outputs Balanced Unbalanced Headphone Phone Line Aux Phone Phone Line Isolation Ringer Frequency Response Power Size Weight Balanced Female XLR 1k ohm 10 mV RMS 35 dBv nom Mic Line pad switch 4 dBv max 3 5mm mono 20k ohm 250 mV RMS 10 dBv nom Male XLR 200 ohm 500 mV RMS 4 dBv max 3 5mm stereo 50 ohm 250 mV RMS 0 dBv max Left send Right caller 3 5mm stereo 8 ohms 250 mW mixed send and receive RJ11C RJ11C 1500 VAC 0 5B REN Telephone side 200 Hz 3600 Hz 120 240 VAC power supply included 7 x 6 x 1 6 18 x 15 x 4 2 cm 2 2 pounds 1 kg 13 12 Connection Although each application may require a slightly different setup there are two primary configurations For a direct connection to Broadcast Host e Phone Line Connect the supplied RJ 11 phone line cable be tween the jack marked Line and your wall jack Be sure this jack supports standard single line analog telephone operation e Send Audio Connect a dynamic microphone cable to the Send 1 jack on the Broadcast Host Be sure to set the Broadcast Host Mic Line switch to the Mic position e Output Connect a stereo cable from the mini jack Stereo Out on the Broadcast Host to the Lin
16. your mixer and on Broadcast Host set all controls to nominal levels usually 12 00 On your mixer set local microphone channel input gain for good microphone level On your mixer set all output faders and the main mix control for good recording level of the local audio On your mixer set the headphone level for comfortable listening On your mixer set the Caller channel input gain to line level if there is a selector switch If there is no line level input and you must connect the Caller to a Mic in turn the input gain way down On your mixer set the Aux control for Caller channel only to mini mum zero or Aux controls for all other channels should ini tially be set at 12 00 Set Aux Send Master for good overall level Place a test call On your mixer set the Aux Send controls individual Aux Send controls for Microphone channels as well as Master Aux Send control so that while you are speaking into the microphone the Send LEDs on the hybrid light the 20 dB green LED consistently and flash the 9 dB green LED If you flash the 3 dB red LED lower the level On your mixer set the Caller channel output level for good re cording level of the caller audio If you need more control of this level on the mixer first adjust the caller channel input gain if ap plicable then adjust Caller control on the Broadcast Host Mix Minus Setup A mix minus signal is an audio signal that contains a mix of your local microphones p
Download Pdf Manuals
Related Search