Kenwood TH-75A Instruction Manual page 20

Carrier Operated scan (CO)
In this mode the radio will stop scanning on a busy
channel and remain there until the signal drops out.
The radio allows a 2 second delay before it resumes
scanning so that you don't loose the station when
operators change.
During CTCSS operation scan will not stop until the same
tone is received.
This transceiver is delivered from the factory in the Time
Operated scan mode. To switch between the two modes
use the following procedure.
1. Press the F key. The F indicator will light.
2. Press the 4/TO/CO key within 10 seconds of pressing
the F key. This will toggle the Hold/Resume mode to Car-
tier operated mode. The CO indicator will light.
3. To return to Time operated mode repeat steps 1 and 2.
4-5-3. BAND SCAN
1. Adjust the SQL control to =)
the threshold point. Su
2. Press the SCAN/DMS key. h nn n
The MHz indicator will be- 45,600 433.528
gin flashing to signal the =
transceiver is scanning. Flashing
3. Scan will begin in an upward direction.
You can reverse the direction of scan by rotating the Tun-
ing control clockwise.
The tuning step size depends upon the current step
selection.
4. Scan will stop whenever a signal is received that will open
the squelch of the radio.
5. You can cancel scan with PTT switch and any front panel
key except the AV keys.
20
4-5-4. PROGRAMMABLE BAND SCAN
1. The lower scan limit must be stored in Memory Channel
8.
The higher scan limit must be stored in Memory Chan-
nel 9.
CAUTION:
If the frequency and the frequency step in Memory Chan-
nel 8 is equal to or greater than the frequency and the
frequency step in Memory channel 9 scan will proceed
over the entire tuning range of the set, i.e. it will func-
tion like the Band Scan previously described.
2. Adjust the SQL control to the threshold point.
Select a frequency between the two programmed scan
limit.
3. Press the SCAN/DMS key. The MHz indicator will begin
flashing to signal the transceiver is scanning.
4. Scan will begin in an upward direction.
You can reverse the direction of scan by rotating the Tun-
ing conrol clockwise.
The tuning step size depends upon the current step
selection.
5. Scan will stop whenever a signal is received that will open
the squelch of the radio.
6. You can cancel scan with PTT switch and any front panel
key except the A\V keys.