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8. Turn on your AH1 transmitter. If your system contains an AR1 receiver, its “Power/ RF” LED should change color from red to green, indicat-
ing that it is receiving valid RF signal and is placed and positioned correctly. If your system contains either a CR77 or UM1 receiver, one of
the “A/B Receiver” LEDs will be lit, showing you whether the (left) “A” or (right) “B” receiver is currently being used. The CR77 / UM1 meter will
also indicate the strength of the incoming RF signal.
9. Turn on your connected amplifier and/or mixer but keep its volume all the way down. Make sure the AH1 transmitter is unmuted. Set
the Volume, Level or AF Level knob on the receiver fully clockwise; this is unity gain.
10. Speak or sing into your headset microphone (or play the instrument connected to the horn microphone) at a normal performance level
while slowly raising the audio input control of your amplifier or mixer until the desired level is reached.
11. Do a walkaround through the intended area of coverage while observing the receiver’s “Power/RF” LED or RF Meter; it should indicate
sufficient RF reception in all areas of coverage. Reposition it (or its antenna) as necessary. If extended range coverage is required, a Samson
CR77 or UM1 true diversity receiver (set to the same channel as the transmitter) should be used
12. If you hear any spurious noise from the receiver output when the transmitter is turned off, use the supplied plastic screwdriver to adjust
the receiver Squelch level control, slowly turning it clockwise to the point at which the noise disappears.
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