Testing
Well you're almost done. We can now set up the receiver as if we were in the field. You must do the following procedures:
- Connect a 2-meter long wire to the antenna (ANT) terminal.
- Connect a 2-meter long wire to the ground (GND) terminal.
- Connect the "RCVR OUT" jack to the "MIC" jack in the cassette recorder with the kit cable.
- Insert the recorder microphone into the "MIC" jack on the receiver control panel.
- Press "Record" on the cassette recorder.
- Stretch the antenna wire out along a convenient surface.
- Hold the bare end of the ground wire in your hand.
- Move the power plug to the "ON" jack.
If you are testing the receiver indoors, you should hear a prominent hum from the power lines. If you hear a loud hum, your receiver works!
Now you can make the following tests:
- Adjust the potentiometer knob.
- Volume level should change.
- Move the "MIC/RCVR OUT" switch up to "MIC".
- You should hear the loud hum in one ear and the microphone input in the other.
If all of this checks out, you are ready to go out in the field to search for a quiet site. CONGRATULATIONS!
NOTE: If you have a monaural recorder, you will have noticed that the "MIC/RCVR" switch does not work as described above. If that is the case, you will have to modify your receiver to work in monaural only. The modification is simple and is described below.
Not all "stereo" cassette recorders use a true stereo microphone input. If yours does not, you will not hear the mic input in one ear and the receiver in the other when you move the "MIC/RCVR" switch to the "MIC" position. If this is the case, you will have to modify your receiver so that it records in monaural.
MONAURAL OPERATION MODIFICATION
1. Locate the short violet wire connecting the "MIC/RCVR" switch to the "RCVR OUT" jack.
2. CUT this wire near each end and remove.
Test the receiver. You should hear receiver output when the "MIC/RCVR" switch is in the "RCVR OUT" position. When you change the "MIC/RCVR" switch to the "MIC" position, you should hear microphone input.
