Antennas - Panasonic RF -4800 Operating Instructions Manual

Fm/am 10-band communications receiver
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AC Power Operation:
Connect the included AC power cord to the AC Input
Jack~
and to your household AC electrical outlet.
On plugging the power cord into the AC Input
Jack~,
opera-
tion changes from battery or external DC power to AC.
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to AC IN
Fig. 5
Car/Boat Battery Operation:
Insert the plug of a car battery adaptor cord into the DC Input
JackG.
Plug the other end into the cigarette lighter socket in your car
or boat.
This automatically disconnects the internal batteries and the
receiver operates on external DC power only.
Note: For the connection of an adaptor cord, follow the instruc-
tions provided with it.
ANTENNAS
FM:
Connect the accessory compact FM antenna to the FM Antenna
Terminals~,
then extend and fix the antenna on the wall near
a window by using three push-pins or adhesive tape as in Fig. 6.
If the FM station is still weak, connect a suitable outdoor FM
antenna (impedance: 75 ohms) to replace the compact antenna.
(For installation, follow the
instructions provided with the
antenna.)
MW:
The rear ferrite core antenna will assure excellent MW recep-
tion in most areas. If the stations are distant or if the signals are
very weak, connect a suitable length of the accessory antenna
wire to the MW/SW1 Antenna
Terminals~,
and extend. (See
Fig. 7.)
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~
To fix, use p ush-pins
ape
or adhesive t
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How to Connect Antenna Wires to the Terminals
Push
~
Terminal~~
Q
W/
i
Insert wire
Push
Fig. 8
Te,minal_r
C)
r
C)
~
Iir.
Push
~ert
wire
-4-
SW:
External antenna and ground connections are required. Figs.10-
13 give examples of outdoor SW antenna installation. For SW1
reception, connect the antenna and ground wires to the MW/SW1
Antenna
Terminals~;
for SW2-8 reception, connect them to the
SW2-8 Antenna
Terminals~.
The Coaxial Cable Antenna Jack€!)
for SW2-8 reception may be used to connect an SW antenna with
a coaxial cable. With this kind of antenna, solder the accessory
metal plug to the end of the cable as in
Fig. 9. Erecting the
antenna as high and as far away from noise-generating equip-
ment and high tension cables as possible improves the recep-
tion.
To avoid danger from lightning, it is strongly advisable to at-
tach a safety device between the outdoor antenna and the
receiver. Fix a knife switch (completed connections as indicat-
ed in Fig. 14) as near to the receiver entrance of the antenna
lead as possible. During electrical stroms, short-circuit the
antenna to ground by reversing the switch to the ground side.
jcore
.-Braided
Wire
Coaxial
Cable
-----Antenna Wire
Antenna Terminals
Plug
Cap
Fig. 7
Solder core
Solder
braided wire
Fig. 9

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