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CONTROLS AND SWITCHES
(1)
MEMORY
CHANNEL
transmit,
receive,
transceive
described in the "Operation" section.
or
frequency.
(2)
POWER
This is the main power switch for the VFO.
(3)
MANUAL SCAN switches
These
PLI
slow.
switches
select
the
scanning
rate
for the
When
they
will
fast
scanning
rate, depending
scanner,
activated,
select
medium,
or
on the desires of the operator.
(4)
AUTO SCAN
The automatic scanner will, when activated, scan
at
the
medium
speed
until
a signal
is received.
then stop. This feature is very useful for checking
a band for activity.
(5)
TUNING DIAL
This is the main
manual
tuning dial for the PV-
901DM.
When
control is said to be by the "FY-
901DM
VFO.
it) should
that
control is by the FV-901DM main tuning dial.
be
understood
(6)
SELECT switches
These
switches
determine
the operating mode
of
the FV-901DM.
@ do Ww
MR
is used
for recall of a memorized
fre-
quency
for
control
of
the
tranceive
fre-
quency.
TX
MR
is used
for recall of a memorized
frequency
for control
of the
transmit
fre-
quency,
with
receive
frequency
control
being on the main tuning dial.
RX
MR
is used
for recall of a memorized
frequency
for
control
of
the
reecive
queney,
with
frequency
being on the main tuning dial.
tre-
transmit
control
VFO
selects operation
via
the main
tuning
dial or
the
scanning
functions
for control
of the transceive frequency.
LOCK
is used in conjunction
with the main
tuning
dial. With
the VFO
button
pressed.
the
LOCK
button
the
VFO
frequency
to be locked,
regardless of
the
setting
of the
dial,
A second
press: of
the
LOCK
the
main tuning dial.
pressing
will cause
button
returns
control
to
M
is a
momentary
switch
for inserting
a
frequency
into one
of the 40 memory
po-
sitions.
(7)
ANALOG READOUT
The
main
tuning dial uses an analog frequency
display, The major calibration markings represent
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