Yaesu FT-270R, Руководство по эксплуатации

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FT-270R 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.
To set up the RF squelch circuit for operation, use the following procedure:
1.
Press the [
F/L
] 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/L
] key momentarily to enable adjustment of this
Item.
4. Rotate the DIAL knob to select the desired signal strength level
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
normal operation.
C
HECKING THE
B
ATTERY
V
OLTAGE
The
FT-270R
’s microprocessor includes programming which will measure the current bat-
tery voltage.
1. Press the [
F/L
] 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/L
] key momentarily to display the current DC volt-
age being supplied.
4. Press the [ F/L
] key, followed by the
PTT switch to return to
normal operation.