Vertex Standard VX-177 ユーザーズマニュアル
VX-177 O
PERATING
M
ANUAL
18
A
DVANCED
O
PERATION
RF S
QUELCH
A special RF Squelch feature is provided on this radio. This feature allows you to set the
squelch so that only signals exceeding a certain S-meter level will open the squelch.
squelch so that only signals exceeding a certain S-meter level will open the squelch.
To set up the RF squelch circuit for operation, use the following procedure:
1.
1.
Press the [F] key, then press the [0(SET)] key to enter the Set mode.
2.
Rotate the DIAL knob to select Set Mode Item 34:
RF SQL
.
3.
Press the [F] key momentarily to enable adjustment of this Item.
4.
Rotate the DIAL knob to select the desired signal strength level
for the squelch threshold (
for the squelch threshold (
S-1
,
S-2
,
S-3
,
S-4
,
S-5
,
S-6
,
S-8
,
S-FULL
, or
OFF
).
5.
Press the PTT switch to save the new setting and return to nor-
mal operation.
mal operation.
C
HECKING
THE
B
ATTERY
V
OLTAGE
The VX-177’s microprocessor includes programming which will measure the current bat-
tery voltage.
tery voltage.
1.
Press the [F] key, then press the [0(SET)] key to enter the Set mode.
2.
Rotate the DIAL knob to select Set Mode Item 12:
DC VLT
.
3.
Press the [F] key momentarily to display the current DC voltage
being supplied.
being supplied.
4.
Press the [F] key, followed by the PTT switch to return to nor-
mal operation.
mal operation.