Yaesu VX-8R, Руководство по эксплуатации

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VX-8R O
PERATING
M
ANUAL
14
O
PERATION
S
QUELCH
A
DJUSTMENT
The VX-8R ’s Squelch system allows you to mute the background noise when no signal is
being received. Not only does the Squelch system make “standby” operation more pleas-
ant, it also significantly reduces battery current consumption.
The Squelch system may be adjusted independently for the FM and Wide-FM (FM Broad-
cast) modes.
1. Press the key, then press the key on the left
side of the radio. This provides a “Short-cut” to Set
Mode Item
92: SQL LEVEL 92: SQL LEVEL 92: SQL LEVEL 92: SQL LEVEL 92: SQL LEVEL
.
2. Now, rotate the DIAL knob to the point where the back-
ground noise is just silenced (typically at a setting of
about “3” or “4” on the scale); this is the point of maxi-
mum sensitivity to weak signals.
3. When you are satisfied with the Squelch threshold setting,
press the PTT key briefly to save the new setting and exit to
normal operation.
4. You may also adjust the Squelch setting by using the “Set”
(Menu) mode. See page 157 for details.
1) The Squelch level may be set on the “Main” and “Sub” bands separately.
2) If you’re operating in an area of high RF pollution, you may need to
consider “Tone Squelch” operation using the built-in CTCSS Decoder. This
feature will keep your radio quiet until a call is received from a station sending a carrier
which contains a matching (sub audible) CTCSS tone. Or if your friends have radios
equipped with DCS (Digital Coded Squelch) like your
VX-8R
, try using that mode for
silent monitoring of busy channels.
24-
HOUR
C
LOCK
The
VX-8R
has a 24-hour clock with a calendar which covers all dates from Janu-
ary 1, 2000 through December 31, 2099. Set the clock according to the “ Clock Set ”
column on page 120.