User's Manual

4 Applied Wireless, Inc.
Connecting Power to the Transmitter and Receiver
The AT900-32 and the AR900-32 each require an external power source
of between 7.5 and 18 volts DC. A plug-in 120VAC-to-9VDC power
converter is supplied with each unit. Insert the power converter’s 2.1mm
plug into the DC INPUT jack on the unit’s rear panel (refer to Figures 1 and
2). Plug each converter into a live 120VAC outlet. The transmitter’s red
POWER indicator LED (on the front panel) should illuminate. On the
receiver, power on is indicated by the illumination of the 2 digit CHANNEL
display.
User Settings and Adjustments
Selecting the Channel of Operation (Transmitter)
Referring to Figure 3, select the channel on which the transmitter will
operate. Available channels are numbered 01 through 32 (inclusive). To
select a channel, use a small flat-blade screwdriver to rotate the selector on
the left to the “tens digit” of the desired channel, then rotate the selector
on the right to the “ones digit” of the desired channel. As an example, to
select channel 26 rotate the selector on the left to “2,” and rotate the
selector on the right to “6.” Be sure to line up the selector’s triangle-
shaped pointer (not the screwdriver slot) to the desired number. Please
note that setting the channel to “00” is the same as channel “01.”
Similarly, setting the channel to any number from “33” to “99” (inclusive)
is the same as channel “32.” If several AT900-32 transmitters are to be
used simultaneously in a common area (so as to broadcast multiple audio
programs), each transmitter must be set to its own unique channel.
Figure 2 – AR900-32 Receiver (Rear Panel)
User’s Guide – 900MHz Stereo Audio Transmitter & Receiver 13
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