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This is the rotating tower which supports all of the antenna's -

  • 20 meter band - 3/3 yagi stack at 50 ft (15.2 mtrs) and 100 ft (30.5 mtrs).
  • 15 meter band - 4 element yagi at 93 ft (28.4 mtrs).
  • 10 meter band - 5 element yagi at 85 ft (25.9 mtrs).
  • 40 meter band - 1/1 dipole stack at 50 ft(15.2 mtrs) and 100 ft (30.5 mtrs) which are the booms on the 20 meter yagis.
  • 75 meter band - sloper at 80 ft.
  • 160 meter band - inverted V dipole at 80 ft which is the upper guy wires.  Receiving antennas are a 1.5 meter diameter loop, and a 600 ft (183 mtr) Beverage.
  • 2 meter band - vertical dipole array at the top of the tower at 100 ft(30.5 mtrs).

All of the yagis are homebrew and computer optimized for gain using YO, TA and EZNEC.


Four HF yagis from the base of the tower.  The upper 60 feet of the 100 foot tower rotates.


View of the QTH to the west with the Rocky Mountains in the background.  Photographed with with a quadcopter drone.


Double rainbow panorama after summer rain.


The radio shack operating position.


Icom IC-7700 with digital audio processor.


Homebrew microphone which cost about $1.  It uses a Panasonic electret element purchased from Digikey.  This mic is flat in frequency response and has very low distortion output.  All equalization is performed in the audio processor.









7544445 Last modified: 2016-09-02 01:10:26, 2589 bytes

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