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RECEIVER OPERATION
=>
Operate your National Panasonic RF-2800LBS/LBE radio receiver
as you would with
any ordinary
radio. To obtain the best per-
formance
and take advantage
of some
of the high-performance
features
of the
receiver,
keep in mind
the following operating
hints.
FM Reception:
Control
Position
Radio/Phono Selector®
............ RADIO
Band Selector@
..... ccc. c cece eee es FM AFC
Digital Display Switch@
............ ON (only during tuning)
Tuning Control®
..........: cee
Desired station
Volume
Control@
—........eeeeeee eee Desired level
Bass@® and Treble®
Controls
...Pleasant level
LW or MW
Reception:
Control
Position
Radio/Phono Selector®
............ RADIO
Band Selector@
.........
cece eee ees LW or MW
RF Gain Control@
.................. DX (full clockwise)
BFO Switch@
_..........ccccseseeenees OFF
Digital Display Switch®
............ ON (only during tuning)
Tuning Control®
............eee
cence Desired station
Volume Control@ — .... cc cece
eee eee Desired level
Bass@® and Treble@® Controls
...Pleasant level
Note:
Changing the receiver's direction
may improve
reception
as the built-in AM ferrite core antenna is somewhat direc-
tional.
SW Reception:
Control
Position
Radio/Phono Selector@® ............ RADIO
Band Selector@
.............:
eee eee Any SW band
SW Calibrator@
.................60a. Center
RF Gain Control@
.................. DX (full clockwise)
BFO Switch@
............. cece ees OFF.
Digital Display Switch®@
Tuning Control®
Volume
Controi@
Bass® and Treble@® Controls
...Pleasant level
To correct a frequency display error:
1) Tune to any SW station whose frequency is known, and make
Sure
the
frequency
tallies with
the
display
(the
selected
station
will
be detuned
if there
is an
error
in the
Digital
Frequency Counter@).
2) Slowly
move
the
SW
Calibrator@,
watching
the
Tuning
Indicator@,
for best reception.
When
the meter
pointer de-
flects to the extreme
left, optimum
reception is achieved
and
the error will be corrected.
|
Note: + At the ''STD"' positions on the Tuning Dial@,
the 5, 10,
and 15 MHz standard frequency signals will be received,
and those signals may be used for error correction.
* If the Tuning
Indicator@
pointer exceeds
fuli scale
be-
cause the signals are too strong, decrease the receiver
sensitivity to the optimum
tuning readout
level by turn-
ing the RF Gain Control@ counterclockwise.
SSB and CW Reception:
Set the receiver up in the same manner as for SW Reception, and
then:
HB Set the BFO Switch®
to ON.
@ Tune to the desired signal.
M™@ Carefully move the BFO Pitch Control@® back and forth until
the signal becomes
most understandable.
Note:
In receiving two-way
communication
signals,
a possible
difference
between
the
two
frequencies
may
require
another BFO Pitch Control adjustment.
To reduce interference:
M@ Set the Bandwidth Switch@ to NARROW
(down), and retune.
M@ Turn the RF Gain Controlg@ counterclockwise
until the inter-
ference fades away, and readjust the Volume
Control@.
mM Turn the receiver in the direction which offers minimum
inter-
ference.
To decrease
background
noise:
M
Perform
external antenna and ground connections.
M Lower the treble tone by turning the Treble Control® counter-
clockwise.
M
Push
the
Digital Display
Switch@
to OFF
to eliminate
the
frequency counter noise or beat note.
Note:
|
« Allow about 30-minute warmup for absolutely exact and stable
frequency display.
* Turning the Digital Display Switch@®
on
and
off may
slightly
shift the tuned frequency.
Frequency Display Precision
FM
AM (LW/MW/SW)
+10 kHz
+1 kHz
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