Memory; Microprocessor Memory Back-Up; Memory Channel Recall - Kenwood TH-77A Instruction Manual
144/440mhz fm dual bander
Hide thumbs
Also See for TH-77A:
- Service manual (92 pages) ,
- Instruction manual (56 pages) ,
- Instruction manual (83 pages)
Table of Contents
Advertisement
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
23
Advertisement
Table of Contents
