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Originally Posted by Graybeard
Notch/slot antennas on commercial aircraft are single, fed by two transceivers and two tuners/couplers wired in parallel to that single antenna.
I'd have to look up the relevant parts of the maintenance and wiring manuals. CJ |
Sorry, CJ, I should have written "later commercial aircraft."
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Hey ChristiaanJ,
Where was that picture of the Concorde taken? It appears that it is attached to a Qantas start cart. I presume somewhere is Australia. N |
They are much more efficient, as they excite the entire airplane into an antenna, vs. just a probe. Either location makes the tuners a pain in the *ss to change. Personally, I prefer the old 747 location (high work platform versus one, sometimes two cherry pickers). Definitely not engineer-friendly |
Originally Posted by Nepotisim
(Post 5096511)
Where was that picture of the Concorde taken? It appears that it is attached to a Qantas start cart. I presume somewhere is Australia.
Cropped and reduced to illustrate the aerials, but the original legend said "Melbourne - 1972". CJ |
Properly designed HF antenna systems have the tuners in the overhead of the aft cabin, and the antenna in the slot below the #2 engine, as in DC-10/11 or in the dorsal, e.g. Fo-100. Some AB have the tuners in the cabin, too, I believe.
GB |
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