Kenwood TH-27A - Manual (Page 19)

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.
Call CH
144MHz 144 MHz 440MHz 430 MHz
f. step 5 kHz 12.5 kHz
25 kHz 25 kHz
Tone
frequency
88.5 Hz(;:i) 1750 Hz 88.5 Hz{^;u 1750 Hz
• Memory Reset
IMEMORY RESETI
Press and hold the M key and turn on the POWER switch.
All the LCD indicator may light. Release the M key. All
user programmed data will be initialized.
IVFO RESETI
Press and hold the ENTER key and turn on the POWER
switch to reset the microprocessor's 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 1 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;
(•X*) Only when the CTCSS unit TSU-7 is installed.
19