Rotating Tower W8JI
160 through UHF rotating tower system
new 45G tower page
This is the 195-foot tall rotating tower at W8JI. The tower is Rohn 55G. The guyline rings and rotor were made by K0XG.
View from contesting barn side.
Antenna placement in pictures below:
The main HF antennas are:
M2 three element full size 40M on 47 ft boom.
Modified KLM 6 element 20 meter Big Stick. Now has 5 elements wide spaced 56 foot boom with hairpin match.
Modified KLM 6 element 15 meter Big Stick. Now has 5 elements wide spaced 38 foot boom with hairpin match.
Modified Telrex 40 Meter with 47 foot boom. Duplicates the M2 now in dimensions for better stacking.
Homebrew 6 element wide spaced with 36 foot boom. Hairpin match.
Installing Large Yagi Antennas
First we had to remove all the old antennas from the existing 165 foot Rohn 55G tower:
Justin and W8JI Tom at top
We then added 3 sections of tower, a new guy ring, and a new layer of guy lines. The first antenna up was a full size 40 meter Yagi. This is a homemade cradle that rides up on a temporary steel tram line. It holds the antennas flat and stable while being pulled into position:
Tom and Justin rigging the antenna to the trolley.
Then we pull the antenna up:
Coming into place at the top:
Bolted in place after hanging from boom strut cable:
Trolley is lower back down tram line:
Later in the morning the upper 40M Yagi is in position:
The completed antenna system:
since Sept 20, 2007