Amarillo, TX


Courtesy of Wayne Weishan

This is the tower yard viewed from the southwest.

Note the two-level waveguide support. The lower waveguide runs north into what was probably part of original repeater building, and the upper waveguide support appears to run along the west side of the two-story expansion, with the waveguide hatchplate out of sight behind the AC facade. The building addition is very close to the east tower face, probably because there's not a lot of real-estate on that side of the block. Also note the different styles of combining network support frames. The open-style framework was used in later construction after experience showed that the primary threat to combining networks was from directly above. Even later construction eliminated the framework and used a single 7-inch square slotted pylon, the slot, of course, is to allow the long copper waveguide run to expand and contract relative to the steel tower yet retain precise alignment of the combining network stack relative to the horn azimuth.

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Created on June 11, 2006 at 21:12 by Albert LaFrance