Channel Selection
1. Turn the receiver on and plug a listening device into the head-
phone jack. A channel letter will show in the display.
2. Press the set button once and the Channel indicator will flash.
3. Press the
button and the Channel will cycle up. Match the
channel to the transmitter being used (ST-200, ST-300, PST-16,
or PST-170).
4. Press SET, the channel indicator will stop flashing and the chan-
nel is set.
Enhanced Dynamic Range (E.D.R.) Operation
The Telex ST-300 and PST-170 Transmitters are equipped
with E.D.R., Enhanced Dynamic Range (companded) audio.
This mode greatly improves the audio signal to noise ratio
when used with the Telex Model SR-400 receiver. The
E.D.R. mode must be selected on both the transmitter and
receiver to be effective.
1. To engage the E.D.R. function turn the SR-400 off with the vol-
ume control thumb wheel.
2. Press and hold the SET button while you turn the SR-400 back
on. The E.D.R symbol will be displayed in the lower right corner
to indicate the mode is active.
3. Repeat the procedure to disable the E.D.R. function.
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