Run In Half-Duplex Mode; Talk Latch Disabled - RTS WKP-1 Manual

WKP-1

Run in Half-Duplex Mode

Half-Duplex Mode allows the transmission of audio data in just one (1) direction at a time, whereas full-duplex mode allows
transmission in both directions at the same time. Because the WKP-1 does not support half-duplex mode, the half-duplex
mode must be setup on the keypanel at the other end of the transmission. Setting the keypanel in half-duplex mode forces a
break in the audio feedback loop. In half-duplex mode the user can either listen or talk, but cannot do both at the same time.
These configurations are done in AZedit. Auto-reciprocal allows listen to be on all the time and allows talk to be turned 
on and off. This reduces feedback because talk is only on when the talk button is pressed, thereby not allowing audio through.
Auto-mute is also a way to reduce feedback through the system. When auto-mute is utilized, listen automatically turns off
when the talk button is pressed.

Talk Latch Disabled

Talk Latch Disable is another way in which the audio feedback can be reduced. Talk Latch allows the user to push a keypanel
button once and talk is turned on. When Talk Latch is disabled, the talk function only works when the button is pressed. The
user can disable the talk latch button through AZedit or set dip switch 1 to close in the WKP-1 dip switch settings (see "Dip
Switches" on page 12).
The middle board in the WKP-1 (also referred to as the audio board).
FIGURE 5.
There are three (3) gain control pots that can be configured to reduce feedback. Turning the gain control clockwise increases
the gain level; turning it counter-clockwise decreases the gain level.
R213 controls the gain for the speaker
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R103 controls the gain for the mic
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Installation 15