Telex PST-170 - Manual (Page 6)

Placement of the Transmitter and Microphone
Place the transmitter on the users belt or in their pocket,
preferably with the antenna facing the receiver. Do not coil
the antenna and put it in a pocket. This will severely reduce
the operating range.
Place the microphone about 10 to 12 inches below the mouth
of the user.
Transmitter Operation
Turn on the transmitter with the toggle switch on top of the
PST-170.
LCD Display
1. Channel Display A through Q, low battery indicator and input level
2. Lock Indicator (see Change Lock Out)
3. Overmodulation indicator (when symbol is showing)
4. Enhanced Dynamic Range Indicator
5. Input level adjustment indicator
-5-
-dB
E.D.R.
2
E.D.R.
5
4
1
3
LCD Display