Hints For Better Reception; External Am Antenna - Pioneer SX-2800 Operating Instructions Manual

HINTS FOR BETTER RECEPTION
EXTERNAL FM ANTENNA
The main advantage of FM over AM is the quality of the broadcast
signal. In order to benefit fully from the high signal quality of FM
broadcasts, it is recommended that a special-purpose FM antenna be
installed. In weak signal areas, a muiti-element (3 element, 5 element,
7 element, etc.) antenna should be used.
FM OUTDOOR ANTENNA CONNECTIONS
There are two ways of connecting the FM antenna to the antenna input
terminals: with 4 300 Q twin-lead feeder or with a 75 @ coaxial cable.
To get the most from the receiver performance, a 75 9 coaxial cable
is recommended since it is more immune than the twin-lead feeder to
noise and interference from external sources. If an FM antenna has
already been erected outdoors, connect it, referring to the figure.
GROUNDING
Grounding is recommended if reception of FM programs is impaired by
noise. To ground, connect a thick polyvinyl insulated wire to the GND
terminal and attach the other end to a metal water pipe or grounding
bar or wind it around a copper plate and bury it.
NOTE:
Never connect a wire to 4 gas pipe for grounding since sparks may ignite
the gas.
EXTERNAL AM ANTENNA
if it is not possible to obtain adequate AM reception even by changing
the orientation of the AM loop antenna, a separate indoor antenna, or
an outdoor antenna should be installed
INDOOR AM ANTENNA
Use a vinyl insulated wire (5 -- 6m} and connect one end to the AM
antenna terminal and affix the other end to the wall or ceiling, as high
as possible.
OUTDOOR AM ANTENNA
lf reception quality is not improved sufficiently even when an indoor
antenna is used, a vinyl insulated wire should be installed outside and
fixed in place,
NOTE:
Do nat detach the AM loop antenna when using an indoor or an outdoor
AM antenna,
14
<ARB1285>
Connecting the coaxi.
FM antenna
Vid
Core {+}
i cable | Shield (-} |
i
|
| :
i
Unit: mm
75 Q terminals
Connecting the 300 2 feeder |
FM antenna
Twist the strands together.
T
Unit: mm
300 2
feeder
Ground
Ground terminal 300 2 terminals
Outdoor AM antenna
AM indoor antenna |
H
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i
1
{Polyviny! insulated wire} 1
'
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AM icop antenna