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The chart below illustrates the way the displayed
frequency will change when you change from one step
size to another.
5,10,15,20 to 12.5,25
12.5,25 to 5,10,15,20
0,5,10,15
0
0
0
20,25,30,35
25
125
10
40,45,50,55
50
25
20
60,65,70,75,
37.5
30
80,85,90,95
%
50
50
62.5
60
75
70
87.5
80
For example:
Assume you are presently displaying a frequency of
439.920 MHz and had previously selected a 20 kHz step
size. If you were to change the step size to 12.5 kHz the
display would then read 439.925 MHz.
4-2-4.
Programmable VFO Tuning Limits
The radio provides the capability of programming the
VFO tuning range, in 1 MHz band segments, as well a
providing a separate programmable band scan function.
(See section 4-5.) For example, you could tell the
transceiver that you only wish to tune the 438.000 MHz
and 439.000 MHz band segment by specifying any
frequency with these two segments. The Tuning controls
would then only tune within these specific bands. The
procedure for specifying the bands is described below.
. Press the VFO key to select the VFO mode.
Rotate the Tuning control until the desired lower
tuning range appears on the frequency display.
For example, you might want to select the 438 MHz
band and dial up 438.100 MHz.
. Press the F key,for longer than 1 second, then press
the CALL key.
ore
thi
sic
| 1045 "4000
438100
. Rotate the Tuning control until the desired upper
tuning range appears on the frequency display.
. Press the F key for longer than 1 second, then press
the SHIFT key.
more than
1 sec
. To confirm that the programming was properly
performed rotate the Tuning control.
The transceiver should not go above or below the
programmed band limits.
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