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80 METER SHORTY INSTALLATION ‑
ATTACHMENT
INTERNATIONAL
ANTENNA CORPORATION
888‑268‑4214
You are the
proud owner of the new
DOUBLE BAZOOKA
ANTENNA.
The first
thing to do is to consider which direction you want your maximum signal to
radiate. The Antenna tends to be omni‑directional, however, the largest
lobes radiate from the sides. If you want your maximum signal to radiate
North and South, extend the ends East and West. The antenna should be
mounted in an inverted "V" configuration for the best results. The apex
should be 30 to 50 feet above around.
Mounting
on a push up pole or tower is easiest. Suspend the apex of the antenna
from the eyehook provided at the center of the "T" mold. Next, extend the
ends of the antenna outward and downward so the antenna forms an upside
down "V". Mount the ends at least 7 to 20 feet above the ground forming an
angle of no less 120 degrees from horizontal. Were horizontal would be 180
degrees. The ends may be fastened with cord to poles or whatever, using
proper safety rules in safeguarding that persons, pets, and other objects
cannot come in contact with any of the elements as shock hazards or RF
burns could result.
Whenever
connecting the ends of the antenna to an object it is recommended that
tension relief “springs” be installed to compensate for any movement of
the antenna or connecting object such as a tree.
After
mounting, connect a 50 ohm feed line such as RG-58, RG-8 or RG-213 coax to
the antenna and your transmitter. Carefully load the transmitter into a
dummy load (not provided). Then with a very low amount of output power
applied to the antenna at your desired frequency, measure the SWR. The
antenna should exhibit an SWR of less than 2:1 across 200 kHz of the 80
meter band as an inverted “V”. The antenna is cut for the CW portion of
the band from the factory so further adjustment is optional.
DO
NOT ATTEMPT TO MEASURE THE SWR USING AN ANTENNA ANALYZER. ANTENNA
ANALYZERS WILL GIVE FALSE SWR MEASUREMENTS ON THE DOUBLE BAZOOKA ANTENNA.
To
lower the SWR, fold
the 300 ohm twin lead back on itself six inches at a time on each side.
This procedure will raise the operating frequency from, the CW portion to
the PHONE portion of the band. Once the lowest SWR is obtained tie wrap
the folded end securely to retain it's position. If you measure a higher
SWR, make sure that the antenna is not near or touching any metal objects
such as rain gutters, aluminum siding, etc.
After
making sure that the SWR is within spec and everything is clear of the
antenna. You are ready to operate and enjoy all of the great signals and
DX contacts that this antenna offers.
We
at IAC wish you the greatest DX'ing and are sure you will be pleased with
your purchase.
IAC
ACCEPTS NO LIABILITY FOR DAMAGE OR INJURY RESULTING FROM THE INSTALLATION
AND USE OF THIS ANTENNA.
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