Filter
Top Products
Power-Up
Make sure any local power supplies are plugged in, and turn on the power switches
of any phantom power supplies.
☞
If you are using a large number of locally powered intercom stations, you should
activate their local power supplies before activating any phantom power supply.
Otherwise, you may get an overload indication on the phantom supply. In this
case, either reset the phantom supply, or momentarily turn it off, then on.
Sidetone Adjustment
The WM1000 and WM2000 use full-duplex audio (the same as conventional tele-
phone lines) in which the talk and listen audio are sent and received on the same
wires. Thus, when you talk on a channel, you will also here your own voice back in
the headphones. If you are using open-ear style headphones, this could cause un-
wanted feedback, since the microphone may pick up your returned voice audio and
re-amplify it. On the other hand, if you are using headphones that completely enclose
the ears, a certain amount of your own voice level is desirable to overcome the muf-
fled sensation when talking. The sidetone adjustment is different for these two situa-
tions.
If you are using open-ear style headphones, adjust sidetone as follows:
1. Activate channel 1 as described in the operating instructions. (Required only for
the WM2000, the WM1000 is active on whichever channel it is connected to.)
2. Activate talk and listen as described in the operating instructions.
3. Slowly increase the volume to maximum while talking into the microphone.
4. Using a small flat-bladed screwdriver, adjust the channel 1 sidetone trimmer (Fig-
ure 1
) to minimize your voice level in the headphones.
5. For the WM2000 only, activate channel 2 and repeat the above steps to adjust
the channel 2 sidetone.
10
Audiocom®