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USER MANUAL - PMA1020 PRECISION 2-WAY WIRELESS ACTIVE PA SYSTEM
Channel display. The number of the current channel is indicated here.
Channel UP & DOWN buttons. Press UP to increase the receiver’s channel and DOWN to
decrease it. There are 16 channels available. Once you select a channel for the receiver, you
must synchronize receiver and transmitter with the Auto-Sync Channel function
[46]
.
ASC function. Once you have selected the channel for wireless transmission with the UP and
DOWN buttons
[45]
, press the ASC button to automatically synchronize transmitter and
receiver. Align the infrared window of the handheld
[53]
or beltpack transmitter
[62]
with the
infrared window of the receiver
[47]
.
Receiver IR window. This sensor sends infrared signals to the transmitter for channel synchro-
nization. For the synchronization to take place, the infrared window of the microphone
[53]
or
beltpack transmitter
[62]
must be aligned with the infrared window of the receiver.
RF indicator. This LED indicates whether the module receives a radio frequency signal (RF
signal) from the transmitter.
AF indicator. This LED indicates whether an audio signal is being received.
MUTE control. This control is used to adjust the squelch threshold for noise reduction when-
ever the transmitter is turned off or its signal is not strong enough. The mute level of the
receiver is preset from factory and, normally, no further adjustment is required. However,
should a readjustment be necessary, set the squelch threshold so that no noise is generated
in the receiver when the transmitter is off.
44
45
46
DOWN
UP
44
48
46
47
42
49
43
45
ASC
IR
RF
AF
MUTE LEVEL
POWER-VOL
UHF RECEIVER
DOWN
UP
ASC
IR
RF
AF
MUTE LEVEL
POWER-VOL
50
47
48
49
50
