Microprocessor Memory; Microprocessor; Memory Channel Recall; Memory Contents - Kenwood TH-27A Instruction Manual

144/430/440 mhz fm transceivers
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4-4_ MEMORY
4 -4-1
. Microprocessor
Memory Back-up
CAUTION
THE MEMORY IS MAINTAINED BY A RECHARGE-
ABLE SECONDARY LITHIUM BATTERY. WITH THE
BATTERY CASE REMOVED, THE MEMORY IS RE-
SET TO ITS INITIAL STATE AFTER ABOUT 20
DAYS. A FULLY DISCHARGED BATTERY WILL RE
-
QUIRE APPROX. 10 HOURS TO REACH FULL
CHARGE AFTER INSTALLING A NiCd BATTERY
PACK OR AN EXTERNAL POWER SUPPLY.
4-4-2. Microprocessor Initialization
The initial state of the microprocessor. as delivered from
the factory is shown in the chart below.
TH-27A
TH-27E
TH-47A
TH-47E
VFOf.
144 MHz
144 MHz
440MHz
430 MHz
Call CH
f. step
5 kHz
12.5 kHz
25 kH
z
25 kHz
Tone
88.5 Hz(,;'
)
1750 Hz
88.5 Hz(·:-
)
1750 Hz
frequency
(*l
Only when the
CTCSS
unit
TSU-7
IS
insta
ll
ed
.
Memory Reset
I MEMORY RESET I
Press and ho ld the M key and turn on the POWER switch.
All the LCD indicator may light. Release the M key. Al
l
user programmed data will be initialized.
IVFO RESETI
Press and hold the
ENTER
key and turn on the POWER
switch to reset the microprocessors VFO memory.
without destroying the memory channel. automatic di-
aler DTMF memory channel. Programmable VFO tuning
range. or call channel
data.
4 -4 -3
.
Memory Channel
This transceiver provides 40 memory channels
.
In addition to serving as a normal memory channel
Memory Channel
l
is used to store the frequency for the
Priority Alert function.
4-4-4.
Memory Contents
Each memory channel is capable of storing the following
information;
19

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