Icom IC-735 Instruction Manual page 40

(2) PROGRAM SCAN
NOTE:
The auto-stop function sometimes does not
stop exactly on the carrier frequency of SSB
and CW signals. In these cases, use the
TUNING CONTROL or R IT CONTROL to
tune in the station.
3. SQUELCH CONTROL
Rotate the SQUELCH CONTROL clockwise until the "RECV"
indicator just disappears to close the squelch circuit. This mutes
the audio from the speaker.
The purpose of this scanning function is to monitor a particular
section of the band. The frequency limits of the section of band of
interest must be programmed in MEMORY CHANNELS 11 and 12.
1. Store the frequencies of the high and low edges of the desired
scanning range in MEMORY CHANNELS 11 and 12. See page 34
for instructions on how to write frequencies into memory chan-
nels, if required. The scan begins from the low edge of the range
regardless of which channel has the higher frequency stored.
For example, store 14.200MHz in MEMORY CHANNEL 11 and
14.300MHz in MEMORY CHANNEL 12.
2. Push the VFO SWITCH to select the VFO you wish to use.
Push the correct MODE SELECT SWITCH to place the
transceiver in the same operating mode as MEMORY CHAN-
NELS 11 and 12.
3. Adjust the SQUELCH CONTROL to mute the audio output from
the speaker.
4. Push the SCAN SWITCH to start the scanning from the low limit
(14.200MHz) towards the high limit (14.300MHz).
The
scanning rate depends on the TUNING RATE SWITCH status.
Normally, the scanning steps are 100Hz, however 1kHz steps
are used if the kHz TUNING RATE SWITCH is pushed. The
MHz and HAM SWITCHES have no effect on the scanning rate.
When the scan frequency reaches the high limit (14.300MHz),
the scan automatically returns to the low limit (14.200MHz)
frequency and resumes upwards again in a continuous cycle.
5. The squelch opens when a signal is received, and stops the scan-
ning automatically if the SQUELCH CONTROL has been set as
explained under PRELIMINARY SETTINGS, step 3. After
approximately 10 seconds, the scan resumes from the frequency
that it stopped on in an upwards direction. If the "RECV"
indicator remains ON, for example if the SQUELCH CONTROL
is turned fully counterclockwise, the scan will not stop at any
other signals.
6. Pushing the SCAN SWITCH while the scan is operating or during
the 10 seconds of monitoring, clears the scanning function and
the VFO returns to normal operation. Transmitting or rotating
the TUNING CONTROL also cancels the scanning function.
7. When the operating frequency is lower than the low limit (14.200
MHz) or higher than the high limit (14.300MHz) and the SCAN
SWITCH is pushed, the scan immediately jumps to the low limit
frequency (14.200MHz) and scans upwards.