Hilberling PT-8000A, Operating Manual

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11.6 VFO Management
Both receivers (MAIN- and SUB-RX) have its own two VFOs –
VFO A and VFO B. Switching between VFO A and VFO B is
established through VFO A/B pushbutton. The button is located in
the cluster VFO.
In addition to frequencies the VFOs store filter
bandwidth and operation mode.
When pushing VFO A/B:

In case the VFO softkey menu is already displayed the active RX will
change its VFO (A
⇨
B or B
⇨
A).

If a different softkey menu is displayed the first push will call up the VFO
menu. The second push will alter the VFO A and VFO B.

Both frequencies displayed for the active RX will alter its
position. The white display always shows the selected
VFO. The VFO can be identified through the red
nominators A respectively B.

The smaller green display always shows the alternate VFO
that is in standby mode.
Only the SUB-RXs
selected VFO frequency is displayed without its identifier A or
B.
active RX
(shown: MAIN-RX)
selected VFO (shown: A)
RX in the background
(shown: SUB-RX)
selected VFO (A or B)
Fig. 49
Fig. 51
Fig. 50