Table of Contents
Advertisement
Getting
Started
Using the VHF
Transceiver
Important!
We strongly recommend
obtaining a marine radio
user's guide such as
"Maritime Radio User's
Handbook" published by
the
RTCM
(Radio
Technical
Commission
For Maritime Services),
Washington, D.C., to
ensure proper radio oper-
ation
and
protocol.
Improper usage can result
in
fines
levied
mariners by the FCC.
The current channel will
always be displayed at the
bottom left of every page.
14
Using the VHF Transceiver
The first step in using the VHF transceiver is to make
sure the volume and squelch controls are set correctly for
proper reception.
Squelch
Control
If the knob is turned past this point, weak signals
may not be received. No noise and no signals are received
until a signal with sufficient strength is received that
exceeds the squelch threshold. When the GPSCOM 170
is in receive mode, 'RX' is displayed in the VHF status
on
bar.
VHF Communication Pages
To move back and forth between the GPS and VHF
pages, press
continuous loop: channel definition, com setup, and
memory bank. Press
enter the com pages. Try scrolling through the com pages
by pressing
direction or return to a previous page by pressing
The function of each of the com pages is discussed in
detail in the reference section.
1. Turn the VOL control clockwise to turn the unit on.
2. Rotate the SQL control fully counterclockwise. This
state is known as "squelch off". Increase the volume
to achieve a comfortable listening level.
3. Slowly turn the SQL control clockwise and stop slightly
past the point where the noise disappears. This condi-
tion is known as the "squelch threshold".
C
. There are three com VHF pages in a
C
P
You can also scroll in the opposite
Com Setup Page
Channel Page
to exit the GPS pages and
P
Mem Bank Page
Q
Volume
Control
Q
.
Advertisement
Chapters
Table of Contents
