Scan Operation; Scantypes; Programmed Scan - Icom IC-1275A Instruction Manual

7-1 Scan types
The transceiver comes equipped with 4 scan functions,
providing tremendous scanning versatility at the touch of
just a few switches.
Repeatedly scans | between user-
programmable scan edges (memory
channels P1 and P2.)
Programmed
scan
Repeatedly scans all memory channels
except blank or skip channels.
Selected mode | Repeatedly scans memory channels
scan with the same selected operating mode.
(1) Adjusting [SQL]
Adjust [SQL] to quiet the noise output from the
speaker since the scan pauses when the squelch opens.
1 /
\
[SQL] ~
D Increases
/ threshold level.
Decreases
threshold level.
(2) Scan speed switch
Switches the scan speed in any scan mode. Slide the
switch to the position for the desired speed. The
switch is located on the LOGIC UNIT. See p. 25 for
the scan speed switch (S1) location.
(3) Scan timer
When a signal is received, the scan pauses and then
resumes after 3 or 10 sec. These times depend on the
types of signal received.
A signal of short duration such as a
pulse signal.
A signal of long duration such as a voice
signal.
SCAN OPERATION / @
7-2 Programmed scan
Programmed scan repeatedly scans between 2 programmed
frequencies.
e Programmed scan
P2 or| Higher
frequency.
Lower P1 ог
frequency |p2 P1
1) Store the frequencies of the higher and lower scan edges
in memory channels P1 and P2. (p. 18)
2) Push [VFO] to select VFO mode.
3) Select the desired operating mode.
4) Adjust [SQL] to the threshold point.
5) Push [SCAN] to start the scan.
e "SCAN" appears.
SCAN
6) When receiving a signal, the scan pauses and resumes
after a pre-selected time. See item (3) at left.
7) To cancel the scan, push [SCAN].
e The tuning control and some other switches also cancel
the scan.
20