VHF Tower and Beams

Updated 27-Sep-2018 12:52

 

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VHF Yagis for 6m thru 1296 MHz are shown here mounted on a 2 inch OD aluminum mast in the HG52SS cranked up to about 50 feet.

The antennas from bottom to top are:

         6 m, 50 MHz, 5 elements: Cushcraft A505S upgraded to K1WHS design 5 el on 17 foot boom August 2018 (picture far right below)

         2 m, 146 MHz, 4 elements: Vertically Polarized Beam for 2 Meter FM Operation, Unknown Manufacturer

         2 m, 144 MHz, 15 elements: W1JR prototype JR Boomer, a Cushcraft 13B2 modified to have triple reflectors

         222 MHz, 13 elements: Unknown manufacturer, similar to Cushcraft.

         70 cm, 432 MHz, 19 elements: Cushcraft A719B

         33 cm, 903 MHz, 33 loop elements: Microwave Associates

         23 cm, 1296 MHz, 46 loop elements: Microwave Associates

 

As of early September 2008, just in time for the ARRL Sept VHF QSO Party, the Tristao (Telex Hy-Gain) HG52SS 52 ft crank-up tilt-over tower was up.

I used an RCB-70 Tower Base Assembly and a TA-70 Tilt Over Accessory as the tower foundation. A TB-2 Thrust Bearing is used to mount the antenna mast on the tower.

A Yaesu G-600RC rotator is used to point the antennas to the desired azimuth, this was upgraded to a Yaesu G-1000 DXA in August 2018 to achieve 450 degree rotation to avoid a dead spot.

 

My thanks to VO1HP for sharing his ideas on how to put up an HG52SS tower.

 

Tower HG52SS and Antennas 15.JPGTower HG52SS and Antennas 09.JPGTower HG52SS and Antennas 11.JPG

Tower Moving Day (Mid Aug 2007)

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Tower Base Construction Week (late June 2008)

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Tower HG52SS Installation 4.JPG

 

Tower Installation (Early Aug 2008)

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Tower HG52SS TiltUp 08.JPG

 

Electric Winches Added 28-Oct-2011, and 24-Jul-2018

 

Crank Up Motorization Added 28-Oct-2011

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IMG_1124.JPG

Tilt Over Motorization Added 24-Jul-2018

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