|

SWL BROADCAST BAZOOKA ANTENNA

A DOUBLE BAZOOKA antenna is an
extremely broad-banded Half Wave Antenna that can operate efficiently across
an entire Ham band with little change to the VSWR.
The DOUBLE BAZOOKA antenna design was
first conceived as a radar antenna in the early 1940's for use by the U.S.
Government. It was modified for amateur radio use in the 1950's.
Home-brew DOUBLE BAZOOKA rarely
survived harsh elements and wind-load stresses. The weak points were
typically at the feed point and coax twin lead connection. The IAC
design is culmination of a three-year development program, including state
of the art materials and encapsulation techniques, to provide the amateur
radio operator with an antenna that will endure such harsh elements.
Construction methods and components used are of government Mil-Spec quality.
- IAC has taken the same high
performance, Mil-Spec quality construction and applied this into a
Short-wave Broadcast Listening Bazooka antenna.
- Antenna construction centers around
50 Ohm coax in combination with 300 Ohm transmission line end section. The
end result is an end feed broadband quarter-wavelength antenna.
- Provided for the listener’s 50 Ohm
feed line is a SO 239, a silver plated connector having Teflon insulation
and a gold plated socket.
- The features of the proprietary
design anchor the connector in high shear UV resistant molding. The coax
element is sealed in this molding, which exhibits high adhesion to the PVC
Jacket.
- Mil-Spec heat shrink tubing, with a
melting inner liner, is utilized to seal and strain relieve the transition
area between the coax and the twin lead. A heat shrink cap is applied to
the outer most end of the twin lead completing antenna construction.
- Since this antenna has no exposed
metal wire static charges can not build up hus reducing noise by 6 dB over
antennas constructed of exposed wired.
- The Short-wave Broadcast Listening
Bazooka antenna is recommended to be mounted to a secure point such as a
roof peak or metal pole for optimum results.
- The Short-wave Broadcast Listening
Bazooka antenna will cover the 13, 16, 19, 21, 25, 31, 41, 49, 60, 90 and
120 meter short wave bands.
The following chart gives overall antenna length and
recommended height placement above ground from a single support point.
NOTE:
THESE ARE ONLY RECOMMENDED HEIGHTS A HIGHER OR LOWER MOUNTING HEIGHT ABOVE
GROUND CAN BE USED WITH EQUALLY GOOD RESULTS. |