VHF Tower and Beams
Updated
23-May-2019 10:15
[back to W1TR Antennas and QTH]
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, 902 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.
August 2008 –
Original VHF Tower and Antennas – 6m, 2m (Horizontal and Vertical), 432 MHz,
1296 MHz
August 2018 – 222 MHz and 902 MHz Antennas Installed
New 17ft 6m Beam Installed Replacing 12 ft Cushcraft 5
el A50-S
Yaesu G-1000 DXA replaced G-600 RC
Further maintenance May 2019 to Repair Wind Damage
from Storm Nov 2018
Tower Moving Day (Mid Aug 2007)
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on text or picture for more details
Tower Base Construction Week (late June 2008)
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on text or picture for more details
Tower Installation (Early Aug 2008)
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on text or picture for more details
Electric Winches Added
28-Oct-2011, and 24-Jul-2018
Crank-Up
Motorization Added 28-Oct-2011
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on text or picture for more details
Tilt-Over Motorization Added 24-Jul-2018
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on text or picture for more details
