Operation Manual

FT-270R OPERATING MANUAL18
ADVANCED OPERATION
RF SQUELCH
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.
CHECKING THE BATTER Y VOLTAGE
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.