Specifications

VX-5R OPERATING MANUAL 21
VFO SPLIT MODE
For working on repeaters with odd splits, or communicating with astronauts on orbiting
space vehicles, it may be necessary to use non-standard splits between the receive and
transmit frequency. If the application is infrequent enough not to warrant the dedication of
a memory channel for this purpose, the “VFO Split” mode may be used. Here is the proce-
dure:

Set the VX-5R for display of both the Main and Sub VFOs, per the preceding section.

Press the VFO key, as needed, to select VFO-A. Set VFO-A for the receiving fre-
quency (for example, 437.950 MHz).

Now press the
[
VFO
(
DW
)
SC
]
key, and set VFO-B for the desired transmit frequency
(e.g. 435.750 MHz).

Press the
[
VFO
(
DW
)
SC
]
key once more to re-establish VFO-A as the “Main” (re-
ceive) VFO.

Press the
[
F/W
]
key, then press the
[
BAND
(
SET
)
AR
]
key to enter the Set mode.

Rotate the DIAL to select Menu #09 (“VFO SPLIT”).

Press the
[
BAND
(
SET
)
AR
]
key to enable activation of the VFO Split feature.

Rotate the DIAL one click to change the setting of this Menu item to ON. Press the
PTT key once to exit to Split VFO operation. You will notice the “[
+
][–]” indicator
on the display, which signifies Split operation.

You will now be operating in a Split mode. When you press the PTT key to transmit,
you will observe that VFO-A and VFO-B will reverse positions. If you need to modify
the VFO-B (transmit) frequency (for Doppler Shift correction, etc.), just press the
[
VFO
(
DW
)
SC
]
key, then make the necessary change, then press
[
VFO
(
DW
)
SC
]
key
once more to restore VFO-A to the “receive VFO” position.

When you have finished with Split operation, re-enter the Set mode, and set Menu #09
to OFF.
A split frequency pair set up via the VFO Split feature cannot be stored di-
rectly into memory. You can, however, store odd frequency pairs using a dif-
ferent (slightly simpler) procedure. See page 42.
Advanced Operation