160m Shorty Double Bazooka Antenna

SKU: SHDB-160
Installation Instructions

Description

PLEASE NOTE: This antenna can only be shipped inside the United States.  No International orders will be accepted.

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 SWR. 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's 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.
   

  • IAC has taken the same high performance, Mil-Spec quality construction and applied this into a Shortened Half Wave Dipole.
  • Shorty antennas are 65% of the overall length of a Double Bazooka providing the same High Performance in a reduced size.
  • Antenna construction centers around two Center Loaded Wide Spaced High Q Coils that feed into 50 Ohm coax in combination with 300 Ohm transmission line end sections. The end result is a center feed broadband shortened dipole antenna.
  • This unique coil design coupled with the already proven Double Bazooka Antenna characteristics provides maximum radiation efficiency and a broad bandwidth but in a reduced length.
  • Provided for the operator'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.
  • This unique design eliminated the need for antenna matching baluns and can be fed directly with 50 Ohm coax. The DOUBLE BAZOOKA SHORTY is extremely efficient and typically provides SWR readings of less than 2:1 over most of the amateur band. See VSWR and POWER HANDLING chart below.
  • Since this antenna has no exposed metal wire static charges can not build up thus reducing noise by 6 dB over antennas constructed of exposed wired.
  • The DOUBLE BAZOOKA SHORTY antenna will handle full legal limit power with no effect to performance.
  • The DOUBLE BAZOOKA SHORTY is recommended to be mounted in an inverted “V” configuration for optimum results.
  • All DOUBLE BAZOOKA SHORTY antennas will operate on other bands with the aid of an antenna tuner.


POWER RATING and VSWR for 2 to 1 points of the DOUBLE BAZOOKA SHORTY ANTENNA:

BAND

VSWR

POWER RATING

40 meters

300 KHz

1.5KW

80 meters

200 KHz

1.5KW

160 meters

100 KHz

1.5KW

 

The following chart gives overall antenna length and recommended height placement above ground for a single DOUBLE BAZOOKA SHORTY antenna:

OPERATING BAND

ANTENNA LENGTH

MOUNTING HEIGHT ABOVE GROUND

END HEIGHT ABOVE GROUND

40 meters

40.0 FT

25 - 35 FT 7 - 15 FT
80 meters 84.0 FT 30 - 50 FT 7 - 20 FT
160 meters 168.0 FT 30 - 60 FT 7 - 20 FT

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