AIRMATE-USB manual page: 16
8.
SETTING UP THE TELCO MODULES
Connect the two wires of the telephone line’s wall unit to the RJ-11 connector labeled wall (LINE) and
connect the telephone appliance itself to the RJ-11 connector labeled PHONE. Note that to originate calls, a
local phone must be connected to the Airmate-usb.
Now the internal hybrid is interfaced (fully balanced) between your
telephone appliance and its connection to the outside world. The hybrid
can now split the send and return signals.
Position both Telco send and gain potentiometers in the 12 o’clock
positions
If a local phone is connected, originate a call to a remote side. If no
local phone is present, someone at a remote site must call you.
When a call comes in the red LED called ring (positioned in between
CUE and ON) lights up red in the rhythm of the ring.
The line is picked up by pushing the CONN button.
If you want to hear the caller press the CUE button to listen to the incoming call.
Adjust the Gain control to get a good input level from the telephone line.
To be able to talk to the caller press the TB (Talkback) button and… talk to him.
Adjust the Telco send potentiometer to increase or decrease the outgoing level to the caller.
Note: This is all happening outside the broadcast.
If all is Ok and both parties know what to do then you can activate the ON switch and fade up the caller ON-
AIR. Or… put the fader in its 0 position and activate the ON switch to On-Air the caller.
But… before you are in this situation you will have to adjust the optimum RC balance to create the best
separation of in and outgoing signal to the telephone line, otherwise your listeners will be presented with
bad quality audio. Adjustments are only needed once when installing the Airmate-USB.
To achieve the optimum attenuation you need to adjust the C and R balance first.
This is how it is performed:
1.
Check if the Telephone connection is established and all connections to the mixing console are
correctly wired.
2.
Send an audio signal to the telephone line by activating another module, for instance a CD player.
3.
Now activate the CUE button of the TELCO module where the telephone line is connected to.
4.
You will faintly hear the send signal coming out of the mixing console.
5.
Adjust the R-Balance for minimum feed through of the mixers send signal.
6.
Listen now which switch position of the C-balance gives a further reduction of the return signal.
7.
Maybe it is good to re-adjust the R-balance after having selected another switch position.
8.
Repeat steps 5 and 6 until no further improvement is achieved for this telephone line.
9.
Note that when you use the mixer on different locations this procedure has to be done all over
again.
9.
SUMMERY
We hope this manual has given you sufficient information to fully enjoy this new AIRMATE-USB mixer.
If you require more info please contact your local dealer or in case he/she is not able to help you send us a
mail at
In case you have bought this mixer from a previous owner, check out the dealer in your area on our website
www.d-r.nl
in case you need assistance.
