Specifications

VX-456 Operating Manual
24
fIeld programmIng mode
The
VX-456
’s Memory Channel allows the user to
change the receiving frequency while the
VX-456
is
in the Field Programming mode.
1. Turn the radio “off”.
2. Press and hold in the (orange)
[
TOP SEL
]
key
while turning the radio on. Release the
[
TOP
SEL
]
key after “
FIELDPRG
” appeared. The
radio enters the Field Programming mode.
3. Rotate the
CH
selector knob (or press the
[
A
]
/
[
B
]
key) to select the Memory Channel which you
wish to change the frequency.
4. Press the
[
D
]
key briey. The memory channel
number will blink.
If you wish to disable the current channel (leave
from Memory Channel list), rotate the
CH
selec-
tor knob (or press the
[
A
]
/
[
B
]
key) to change the
blinking memory channel number to the blink-
ing “
NONEXIST
” notation, then skip to step 8.
Note: The memory channel “1” can not set to
“disabled”.
5. Press the
[
D
]
key briefly, then rotate the
CH
selector knob (or press the
[
A
]
/
[
B
]
key) to se-
lect the desired bandwidth between “
SEP W5
”
(Wide: 25 kHz/step) or “
SEP N2
” (Narrow:
12.5 kHz/step).
6. Press the
[
D
]
key briey, and then rotate the
CH
selector knob (or press the
[
A
]
/
[
B
]
key) to select
the 10 MHz and 1 MHz digits of the receiving
frequency.
7. Press the
[
D
]
key briey, and then rotate the
CH
selector knob (or press the
[
A
]
/
[
B
]
key) to set
the 100 kHz and 10 kHz digits of the receiving
frequency. The 1 kHz digit and 500 Hz deter-
mine in the bandwidth which is set by step 5.
8. Press the
[
D
]
key to save the new frequency.
9. If you wish to change other memory channel,
repeat steps 3 through 8 above.
10. After completing your programming, turn the ra-
dio off by rotating the
VOL/PWR
knob counter
clockwise to save the new settings.