A I R E N C E - U S B M a n u a l P a g e 23
SETTING UP THE TELCO MODULES
Connect the two wires of the telephone line’s wall connector to the RJ-11
connector labelled wall (LINE) and connect the telephone unit (the one
that has a dialer and handset) to the RJ-11 connec-
tor labelled PHONE. Note that to originate calls, a
local phone must be connected to the AIRENCE, so
you are able to dial a number.
Once the dialed person has taken the call you can
talk to him via the handset and inform him that he
will be in the broadcast soon. You do this by push-
ing the connect button in the TELCO module. if you now want to hear him or her
again in the mixer push the CUE button in the same channel you have pushed the
Connect button and listen to the Cue signal through the CRM (follow phones active)
or via your headphone output. If you want some else to talk to him or her also prior
to the broadcast push any CUE button and communication is established.
Now the internal hybrid is interfaced (fully balanced) between your telephone ap-
pliance 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 site (someone’s phone).
If no local phone is present, someone at a remote site must call you.
When a call comes in, the red RING LED (positioned between the CUE and ON switches) lights up each time
the phone rings. The line is picked up by pushing the CONN button.
If you want to hear the caller, press in the same channel 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 or use another MIC input of
the mixer and push the CUE there too. Adjust the Telco send potentiometer to increase or decrease the out
-
going level to the caller.
Note: This is all happening outside the broadcast.
If all is OK and both parties know what to do, you can press the ON switch and fade up the caller ON-AIR, or,
put the fader in its “0 or 10” position and activate the ON switch to put the caller on-air.
Before going “live” with your caller, you will need to adjust the optimum RC balance to create the best
separation of in and outgoing signals to the telephone line, otherwise your listeners will be presented with
bad quality audio and your own voice will be influenced by crosstalk of your own signal feeding en returning
from the Hybrid. These adjustments are only required once when installing the AIRENCE.
To achieve the optimum attenuation, you must 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 example, a CD player.
3.
Now activate the CUE button of the TELCO module where the telephone line is connected.
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: If you use the mixer in different locations this procedure must be done again.
