Frequency Selection; Frequency Step Selection - Kenwood TM-231A Instruction Manual

Note:
The frequencies shown above are the default frequencies
after a microprocessor reset. If the display shows incom-
plete data or you think the displayed frequency is in error
you should reset the microprocessor using the instructions
provided in the Microprocessor Memory Initialization on page
21.
3. Rotate the VOL control clockwise until a signal or noise
is heard coming from the speaker.
4. Rotate the tuning control or press the microphone
UP/DWN switches to select an open channel. Then ro-
tate the SQL control clockwise until the noise just dis-
appears and the BUSY indicator turns off. This point is
known as the Squeich Threshold point. The squelch con-
trol must be adjusted to this setting for the Scan func-
tions to operate properly.
5. Select the desired operating frequency using the micro-
phone or tuning control. When a signal is received the
S-meter will deflect and the BUSY indicator will turn On.
CAUTION:
Turn off the transceivers POWER switch before you start
or stop you vehicles engine, or home power supply.
4-2-2. Frequency Selection
You can change the dial frequency while in the VFO made.
The frequency can then be also be stored in memory, or in
the call channel using the techniques that will be described
in this manual.
VFO mode
MR key VFO key VFO key CALL key
Z CALL key
MEMORY channel mode CALL channel mode i
MR key
@ VFO Mode Operation Frequency Selection
. Press the VFO key to select the VFO mode.
2. Rotate the tuning control or press the microphone
UP/DWN switches to select the desired frequency.
@ Memory Channel Selection
. Press the MR key.
2. Rotate the tuning contro! or press the microphone
UP/DWN switches to select the desired memory channel.
® CALL Channel Selection
Press the CALL key to select the Call channel.
4-2-3. Frequency Step Selection
The frequency step is indicated in the chart below.
5 + 10 4 15 — 20 + 125 25
TM-231A/231E | O ° ro) ° ° ro)
TM-331A ° ° oO ° ro) O
TM-431A/431E | O ° oO oO ro) oO
TM-531A/531E | NAO NA O O ° |