Scanning Operation
The FT-90R’s microprocessor-based scanning feature allows quick scanning of
the memory channels, or sweeping of a band, looking for activity.
Before activating the scanner, make sure that the SQL control is set to silence the
background noise when no signal is present. If the noise is not squelched, the
transceiver will “think” that it has found a signal, and will not scan.
Scanning may be started or stopped with the microphone’s
[
UP
]
or
[
DWN
]
button.
The following techniques are used for scanning:
1. Pressing and holding in either the
[
UP
]
or
[
DWN
]
button for one second in the
VFO mode will cause upward or downward band scanning, respectively, to
begin.
2. Pressing and holding in either the
[
UP
]
or
[
DWN
]
button for one second in the
Memory mode will cause memory channel scanning toward a higher- or lower-
numbered memory channel, respectively.
3. Scanning pauses when a signal opens the squelch, and the decimal point on the
display will blink. You can choose one of two scan-resume modes (described
below).
4. To halt the scan manually, the easiest way is to push the PTT switch on the
microphone momentarily (no transmission will occur while you are scanning).
The scan may also be halted manually by pressing the microphone’s
[
UP
]
or
[
DWN
]
button, or the microphone’s
[
VFO/MR
]
button.
Scan-Resume Options
Two scan-resume modes are available on the radio:
•
In the
BUSY
mode, the scanner will remain stopped for as long as there is
carrier present on the channel; after the carrier drops at the end of the other
station’s transmission, the scanner will resume.
•
In the
TIME
mode, the scanner will halt for five seconds only, after which
scanning will resume (whether or not the other station is still transmission).
To change the scan-resume mode, use the following procedure:
1. Press and hold in the key for one second, then rotate the MAIN DIAL
knob to select “
29SCAN
.”
2. Press the key to select the desired scan-resume mode (
BUSY
or
TIME
).
3. Press and hold in the key for 1.5 second to save the new setting and
exit to normal operation.
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