The ZID ARTCC HF Radio (NARACS)
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The ZID ARTCC HF Radio (NARACS) |
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I sometimes operate HF from work if we are having a quiet night here
at ZID ARTCC. This rig has a BIG signal. The Collins
HF-8070A is set to about 500 Watts PEP, it is optioned with the 1000
Watt output deck and we keep it turned down in the interest of
reliability and maintenance cost. The secret is the HUGE antenna
in the back yard. It is fed with large diameter coax, the box at
the base it the rotor, the mast portion of the feed line is rigid copper
with a slip ring. The antenna can rotate through more than 360
degrees due to the slip rings. The last 4 elements have large
copper loading coils of a few turns to keep the element length
reasonable. The antenna is rated 4-30 MHz but works well at 3840. Click on the picture to go to the main photo collection
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