____________________________________________________________________
G1000 System Maintenance Manual
Page 5-99
190-00903-00
Rev.
A
5.1.8.17 COM Setup Page
Figure 5-22. COM Setup Page
Windows:
a.
SELECT GIA UNIT
―
displays the currently selected GIA 63/GIA 63W.
b.
CALIBRATION
NOTE
Making incorrect adjustments will disable the COM and require GIA replacement.
c.
FREQUENCY
―
selects a VHF communication frequency. For purposes of setting squelch
and sidetone levels, only the frequencies 118.00, 127.00, 136.975 can be used.
SPACING:
Selection Description
25.0 kHz
Selects the traditional 25 kilohertz spacing (760 channel)
8.33 kHz
Selects 8.33 kilohertz channel spacing, required in certain areas of the world.
d.
SQ 250
―
sets the squelch threshold for 25 kHz channel spacing operation. May be set to any
value between 0 (zero) and 63. The higher the number, the less signal is required to break
squelch.
e.
SQ 833
―
sets the squelch threshold for 8.33 kHz channel spacing operation. May be set to
any value between 0 (zero) and 63. The higher the number, the more signal required to break
squelch.
f.
SIDETONE
―
sets the sidetone audio output level. May be set to any value between 0 (zero)
and 63.
g.
MIC GAIN
―
sets the headset microphone gain level to any value between 0 (zero) and 63.