User’s Guide – 900MHz Stereo Audio Transmitter & Receiver
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dual cable is supplied with the transmitter for making these
connections. Some audio devices, such as MP3 players, portable
CD players, and PC sound cards have a single miniature (3.5mm)
stereo phone jack (as opposed to separate RCA phono-type jacks).
To connect any of these to the transmitter, use the supplied adaptor
in conjunction with the standard dual cable to make the
connection.
Note 1:
If the audio source device provides only a single (mono)
output, a
“Y”
adaptor (not supplied) may be used to feed the signal
to both of the transmitter’s input jacks.
Note 2:
If a microphone is to be used as the audio source, an
external microphone preamp (not supplied) must be used to raise
the microphone’s output signal to the required line level.
Connecting the AT900-32DY or DZ Remote Antennas
The remote antennas are connected using any length CAT 5 cable.
The RF head is located in the antenna case, so no coax cable is
required. For the AT900-32DZ Outdoor rated enclosure, the
antenna case will need to be opened to connect the cable.
Connecting the AR900-32 Receiver’s Audio Outputs
Using the shielded dual audio cable provided, connect the
receiver’s line level audio outputs to the appropriate inputs on the
Figure 1 – AT900-32 Transmitter (Rear Panel)
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Applied Wireless, Inc.
device that is to amplify and reproduce (or record) the received
audio signals (refer to Figure 2). If the destination device has only
a single (mono) input, a
“Y”
adaptor (not supplied) may be used to
combine the receiver’s
LEFT
and
RIGHT
outputs, and feed the
combined signal to the destination device’s mono input jack.
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 and Table 1, select the channel on which the
transmitter will operate. Available channels are numbered 01
through 32. 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
Figure 2 – AR900-32 Receiver (Rear Panel)
