User's Manual

ST-3118C SM R 1.1 SMARTRUNK SYSTEMS, INC.
26
gain on the Mic Gain then check the
Digital ACG Check Box.
For example, if you want a dynamic
gain which causes the same effect
that a gain of 15.0dB when the
voice on the microphone causes
50mV RMS in the microphone
switch output (standard voice at 4
inches away from the microphone),
or 6.0dB gain on the external
microphone connection, then you
must program the Digital Gain at
15.0dB and the external gain on
6.0dB, then check Digital AGC as
bellow:
Figure 31: Digital Microphone Path AGC Control
Press [OK] to store it in the file.
The value will be updated after the
file is transferred to the radio.
6.1.5. MINIMUM VOLUME LEVEL:
This alignment lets the user to
ensure the speaker level should be
audible, evenly when the volume
control potentiometer is fully closed
counter clockwise.
It can be aligned up to 250 (max)
step 1.
6.1.6. SQUELCH LEVEL:
ST-3118 supports individual
squelch alignment for any channel
to be programmed individually on
each frequency defined into the
frequency chart of each bank. On
this way, the user can set a higher
threshold level for noisy channels
and lower for clear channels.
Once programmed, if due to the
proximity of the radio to a noisy
environment the squelch level is not
high enough, the user can adjust a
common reference for all the
channels in the radio by adjusting
the general squelch level.
Option screen on the edit menu,
lets you to program the default
squelch reference for all the
channels. This value can be
adjusted on the fly for the user if the
dealer program on squelch control
key or navigating through the radio
menu.
To set a desired squelch reference,
please select you desired squelch
level form the list:
Figure 32: Squelch Level Setting Screen
Press [OK] to store it in the file.
The value will be updated after the
file is transferred to the radio.