23
advanced operatIon
Changing the Channel Steps
The
FTA-310
’s synthesizer provides the option of uti-
lizing channel steps of 8.33/25 kHz per step.
The
FTA-310
is set up with default channel steps of “25
kHz” (NAV and COM bands). If you need to change the
channel step increments, the procedure to do so is very
easy.
First set the
FTA-310
to the operating band (VFO A
or VFO B and NAV or COM) on which you wish to
change the channel steps.
Press the
[
F
]
key, then press downward on the
VOLUME
knob to activate the Menu (“SET”)
mode.
Rotate the
DIAL
selector
knob to select Menu Item 30
“
STEP
.”
P r e s s down w a r d o n t h e
VOLUME
knob to enable adjustment of this Menu
item.
Rotate the
DIAL
selector knob to select the new
channel step size.
When you have made your selection, press down-
ward on the
VOLUME
knob to save the new set-
ting, and then press the
PTT
key to exit to normal
operation.
Important Note
1) When you set the channel step to 8.33 kHz, the
channel display differs from actual operating fre-
quency; see the chart below. However, the operator
(pilot, tower, control, etc) will call out the frequency
according to what the display indicates.
When you set the channel
steps to 8.33 kHz, the “ ”
icon will appear in the display.
Operating
Frequency
1
xx
.0000 MHz
1
xx
.0083 MHz
1
xx
.0166 MHz
1
xx
.0250 MHz
1
xx
.0333 MHz
1
xx
.0416 MHz
1
xx
.0500 MHz
1
xx
.0583 MHz
1
xx
.0666 MHz
1
xx
.0750 MHz
1
xx
.0833 MHz
1
xx
.0916 MHz
8.33 kHz Step
1
xx
.005 MHz
1
xx
.010 MHz
1
xx
.015 MHz
1
xx
.030 MHz
1
xx
.035 MHz
1
xx
.040 MHz
1
xx
.055 MHz
1
xx
.060 MHz
1
xx
.065 MHz
1
xx
.080 MHz
1
xx
.085 MHz
1
xx
.090 MHz
25 kHz Step
1
xx
.000 MHz
1
xx
.025 MHz
1
xx
.050 MHz
1
xx
.075 MHz
Display
2) The 8.33 kHz step allows the radio to receive only,
and the transmit function is disabled.
3) The adjacent channel selectivity will be slightly de-
graded while receiving using 8.33 kHz channel steps.
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