User's Manual

9
Frequency-Agile UHF Belt-Pack Transmitter
Rio Rancho, NM – USA
OPERATING NOTES
The AUDIO LEVEL control knob should not be used to control the volume of your sound system or recorder levels.
This gain adjustment matches the transmitter gain with the user’s voice level and microphone positioning.
If the audio level is too high — both red LEDs will light frequently or stay lit. This condition may reduce the dynamic
range of the audio signal.
If the audio level is too low — neither LED will light, or only the -20 LED will light green. This condition may cause hiss
and noise in the audio.
Different voices will usually require different settings of the AUDIO LEVEL control, so check this adjustment as each
new person uses the system. If several different people will be using the transmitter and there is not time to make the
adjustment for each individual, adjust it for the loudest voice.
ADJUSTING THE TRANSMITTER FREQUENCY
If you are experiencing interference from another signal on your frequency, you may want to change the operating
frequency of your system. The left switch changes the operating frequency by 1.6 MHz per step and the right switch
changes it 100 kHz per step. If you are experiencing interference, change the operating frequency to find a clear
channel.
To gain access to these switches, slide the access door sideways with a fingernail.
With the 400 series receivers, the front panel LCD character display will indicate the correct transmitter switch set-
tings. Use the scanning functions on the receiver to find a clear channel.
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1.6M 100K