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I have been active on 144 MHz EME
during two periods. The first period was from
1993 to 1995. At that time, I built 4 15 element
antennas, each approximately 8 meters long in a
large "H" frame.
4 times 15 element yagi for
144 Mhz
In 1997 I decided to build a
larger system, this time it was 8 15 element
yagi's mounted in a "double H" frame.
Unfortunately, the array was taken by a very
furious storm in December 1999 with winds
peaking to 100 mph !
The Az/El Mount was completely destroyed, as
well as most of the antennas and feed system
Pictures of the 8 times 15
element VHF EME array
8 times 15 Element 4.0 WL, 8.3 Meter long, DJ9BV
Cross yagi's, estimated array gain is 25 DBi.
The size of the complete array was 12 meters
wide, the central boom was located 4.5 meters
above ground, which placed the 4 lowest antennas
at 2.5 meter and the four upper antennas at 6.5
meter above ground, each antenna was 8.3 meter
long. The total weight of the system excluding
the mast was around 500 Kg (1000 pound).
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