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® Current frequency is in CALL Channel mode (TM-621A/
721A); Frequency can not be changed in the SUB band.
(The CALL Channel indicator is not displayed.)
4-2-3.
Frequency Step Selection
The frequency step is factory-set to the following;
es
:
| _TM-621A
_TM-721A
TM-721E
144 MHz Band
5 kHz
5 kHz
12.5 kHz
| _220MHz Band
| 20 kHz
-
|
=
430/440 MHz Band
|
—
25 kHz _
25 kHz
The frequency step can be selected by using the following
procedures:
MAIN Band
1. Press the VFO key to select
veo
the VFO mode.
If you are already in the
dicator will be displayed on
the LCD display.
Press the REV/STEP key wi-
thin 5 seconds. (If the in-
dicator goes off, you must
press the F key again.) The
current frequency step will
be displayed
on the LCD
display.
3. Rotate the Tuning control
a
or press
the
Microphone
i
i
UP/DWN
switch to select
the
desired
frequency
step.
The
accompanying
EESEDaesccssnsas|
figure
shows
how
the
Tuning
control
will
in-
crease
or
decrease
the
a
0-15--20--25~-1 <a
.
(Hz)
step size.
4. To complete the Frequen-
2
Microphone
cy step selection press the
MAIN Tun: | Up/pWN
i
VFO key or any other key.
ing control | "switches
Automatically
return
5 | _, | Rotate
Press UP
"
'lock
w i :
k
seconds of the selection.
San =
ee
jotate
=.
counter-
Press DWN
key
clockwise
SUB Band
It is impossible to select the Frequency Step directly while
in the SUB Band. It is possible to transfer the selected Fre-
quency Step of the MAIN band to the SUB band. Press the
BAND key.
17
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