Kenwood TH-55AT Series - Manual (Page 15)

Select the desired channel
number using the tuning
control. You will be able to
see all channel numbers
with this procedure. (For
example Ch. 13)
4. Press the MR key within 5
seconds. The Memory
channel number will ap­
pear in the display.
,,,C non,,,
!-^J>.uOuU
3-4-7 CLEARING ALL MEMORY (Microprocessor
initialization)
To erase the data from all memory channels at the same
time you can reset the microprocessor. This will remove
any programmed information that you have entered.
1. Turn the Power switch OFF.
2. Press and hold the M key.
3. Turn ON the power switch and then release the M key.
4. The display will show: 144.000 (TH-25A/25AT/25E)
430.000 (TH-45A/45E)
440.000 (TH-45AT)
60.000 (TH-55AT/55E)
3-4-8 MEMORY BACK-UP BATTERY
A lithium battery is contained in the transceiver to retain
memory. Turning off the power switch, changing or fully
discharging the normal battery will not erase the memory.
The battery should last for approx. 5 years. When the bat­
tery discharges, an erroneous display may appear in the
display. (For the lithium battery replacement, refer to IN
CASE OF DIFFICULTY. Page 23)
16
For proper scan operation the squelch must be adjusted to
the threshold point.
The MHz dot will flash ON and OFF as a visual indication
that the transceiver is scanning.
• Scan Modes
Band Scan: Scans the entire band.
Pressing the VFO key for longer than 1 se­
cond will initiate Scan. The scan step size
depends upon the current step programming.
Memory Channel Scan: Scans those memories that ac­
tually have data and have not been locked
out.
Pressing the MR key for longer than 1 second
will initiate Scan.
3-5 SCAN
• Scan Hold
Scan will stop on a busy channel and hold for approximate­
ly 5 seconds. Scan will resume even if the station is still
present. You can manually cause scan to resume by
rotating the Tuning control.
• Scan Direction
Scan will begin in an upwards direction. You can reverse
the direction by rotating the Tuning control counter­
clockwise.
• Scan Release
Scan can be released by pressing PTT switch (no transmit­
ting) or any key except the LAMP, or MONI key.