Kenwood TH-77A User Manual

4-4. MEMORY
4-4-1. Microprocessor Memory Back-up
A lithium battery is contained in this transceiver to re-
tain memory. Tuning OFF the POWER switch, discon-
necting the power cable or an intermittent power fail-
ure will not erase the memories. The battery life is esti-
mated at 5 years. When the battery has been exhausted
erroneous information might appear in the display.
Lithium battery replacement should be performed by
an authorized KENWOOD service facility, or your autho-
rized KENWOOD dealer. This equipment contains CMOS
circuitry and can be damaged by improper replacement
procedures.
4-4-2.
MEMORY RESET
Press and hold the M key and turn on the POWER
switch. All the LCD indicator will light. Release the M
key. All user programmed data will be initialized.
Microprocessor Initialization
VFO RESET
Press and hold the ENT key and turn on the POWER
switch to reset the microprocessors VFO memory,
without destroying the memory channel, automatic
dialer DTMF memory channel, Programmable VFO
tuning range, or call channel data.
The initial state of the microprocessor, as delivered
from the factory is shown in the chart below.
440/430 MHz
144 MHz band band
VFO frequency 144 MHz 440/430 MHz
hi
ye
144
MHz
440/430
MHz
Frequency step ou pire 25 kHz
Tone frequency 88.5 Hz (3X) 88.5 Hz (3X)
«Only when CTCSS unit TSU-7 is installed.
4-4-3. Memory Channel
This transceiver provides 40 memory channels for UHF
and VHF bands.
In addition to serving aS a normal memory channel,
memory channel 1 is used to store the frequency for the
Priority Alert function.
4-4-4. Memory Contents
Each memory channel is
following information:
capable of storing the
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Kenwood TH-77A Specifications

General

Brand	Kenwood
Model	TH-77A
Category	Transceiver
Language	English