FT-2600M O
PERATING
M
ANUAL
15
Operation
B
ASIC
O
PERATION
/R
ECEPTION
P
OWER
ON/OFF
Turn the
Power / VOL
Knob clockwise to turn on the radio.
The start-up channel will be the same one on which you were operating when the radio was
last turned off.
S
UPPLY
V
OLTAGE
D
ISPLAY
When you turn on the radio, the current DC supply voltage will be indicated on the display
for one second. After this interval, the display will resume its normal indication of the
operating frequency.
To view the supply voltage at any time during operation, use the following procedure:
(1) Press and hold the
[
MHz
]
key for one second to activate the “Set” (M
ENU
) mode, then
rotate the
Main Dial
knob to select “
09 DC IN
.”
(2) Press the
[
MHz
]
key momentarily to display the current DC supply voltage on the
LCD.
(3) Press and hold in the
[
MHz
]
key for one second to exit to normal operation.
A
DJUSTING
THE
V
OLUME
AND
S
QUELCH
Rotate the
VOL
control to adjust the receiver volume. Clockwise rotation increases the
audio output level.
The Squelch system is designed to keep the receiver quiet until a signal is received. The
Squelch should be adjusted to the point where the background noise is just silenced; any
“higher” setting will reduce the receiver’s sensitivity to weak signals.
To adjust the setting of the Squelch system:
(1) Rotate the
Main Dial
to select a clear frequency (where no signals are present).
(2) Press and hold in the
[
MHz
]
key for one second, then rotate the
Main Dial
knob to
select
“
28 SQL
.”
(3) Press the
[
MHz
]
key momentarily, then rotate the
Main Dial
knob to select the squelch
threshold level (
OFF
, or
1
to
15
). While you are making this adjustment, you will be
able to hear the background noise appear when the Squelch setting is too low. The best
sensitivity will be realized when the Squelch is set to one number past the point where
noise is muted.
(4) Press and hold in the
[
MHz
]
key for one second to save the new setting and exit to
normal operation.
A special “RF S
QUELCH
• 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.
