Vertex Standard VX-5500L Service Manual page 8

SQL (Squelch Level)
You can manually adjust the squelch level using
this function:
1. Press the assigned PF button of the "SQL". A
tone sounds and SQL appears on the display
with the current squelch level.
2. Rotate the CHANNEL selector knob to select
the desired level.
3. Press the this key. A tone sounds and the dis-
play returns to the normal channel.
COMP (Compander)
Press the PF button assigned to the "COMP"
function to turn the "Compander" IC ON or OFF.
This IC contains two variable gain circuits con-
figured for compressing and expanding the dy-
namic range of the radio's transmitted audio sig-
nal.
When you enable this function, the signal-to-noise
radio can be improved by reducing the transmit-
ted audio dynamic range.
A O
DVANCED PERATION
Encryption (Option)
When the Voice Scrambler feature is enabled,
pressing the assigned PF button of the "Encryp-
tion" toggles the Scrambler on and off.
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