What Antenna is This?

Rob58

Rob58

Pre-takeoff checklist
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Feb 20, 2016
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Rob
Hoping somebody recognizes this King antenna and can confirm what model number it might be (there is no identifying information on the outside of the device and at the present time I am unable to gain close access to the inside of the fuselage). It does appear that in addition to a coax connection there are other wires connected to the antenna. Any information will be much appreciated!

King_Antenna.jpg
 
Top or bottom of the aircraft?

And what is that huge gash in the aluminum lower left? Ouch.
 
denverpilot said:
Top or bottom of the aircraft?

And what is that huge gash in the aluminum lower left? Ouch.
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This is a view of a belly mounted antenna. Fortunately that big gash is in the fabric which is a lot easier to repair than aluminum... but it is a problem that I am working on.
 
slacktide said:
Pretty sure that is a KA44b ADF antenna.
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ok, thanks. I thought it might be ADF, but not sure why there are multiple cables connected to the antenna. I will try to find a schematic or a manual somewhere.
 
Rob58 said:
ok, thanks. I thought it might be ADF, but not sure why there are multiple cables connected to the antenna. I will try to find a schematic or a manual somewhere.
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Power for the rotation of the antenna, coax for the received signal, and wires for motor directional control as a bare minimum. Nothing really new or different about that in an ADF bearing antenna.
 
4.2 pounds for the KA-44B antenna assembly. Pretty hefty contraption.
 
T'wasn't there a website with gouge on what antennae look like somewhere? Just GooFu'd but came up empty, except for some weird fetish sites.

I got to thinking our partnership's Arrow needs a drag reduction a-la Ted's good work on his acquisitions.
 
catmandu said:
T'wasn't there a website with gouge on what antennae look like somewhere? Just GooFu'd but came up empty, except for some weird fetish sites.
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Wouldn’t a site devoted to photos of various avionics antennas count as a “weird fetish site”? ;)
 
weirdjim said:
I don't know if your choice of "weird words" was intentional, but I wrote that article for Kitplanes in the February 2001 issue.
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An article, I could see. It was described as an entire website devoted to antenna photos.
 
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I removed ADF from my plane last year but still have that antennae stuck on the bottom. One of these days I'm gonna remove it to get some weight back. Is that an easy project? My plane is certified so I'd obviously need an A&P to sign it off. What is underneath once it is removed? Do you just need an inspection plate to take it's place?
 
mr_happyland said:
I removed ADF from my plane last year but still have that antennae stuck on the bottom. One of these days I'm gonna remove it to get some weight back. Is that an easy project? My plane is certified so I'd obviously need an A&P to sign it off. What is underneath once it is removed? Do you just need an inspection plate to take it's place?
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Antenna is the singular, antennas is the American English plural, antennae is the Brit English plural. What is your airplane certified to do?

Jim
 
weirdjim said:
Antenna is the singular, antennas is the American English plural, antennae is the Brit English plural. What is your airplane certified to do?

Jim
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Thanks for the spell check Jim. I guess the glory of my 6th grade spelling bee win has worn off.
 
weirdjim said:
Antenna is the singular, antennas is the American English plural, antennae is the Brit English plural.
Jim
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Well, since that one radome contains both a sense antenna and a loop antenna, it seems that the plural would be appropriate.
 
mr_happyland said:
I removed ADF from my plane last year but still have that antennae stuck on the bottom. One of these days I'm gonna remove it to get some weight back. Is that an easy project? My plane is certified so I'd obviously need an A&P to sign it off. What is underneath once it is removed? Do you just need an inspection plate to take it's place?
Click to expand...

Reasonably easy, it’s a hole in the skin where the antennae and power connections are, plus holes for the stud mounts. I’d probably just rivet the stud holes closed and cut a couple circles of aluminum to make a flush patch on my Skymaster once I get to pulling mine.
 
denverpilot said:
Power for the rotation of the antenna, coax for the received signal, and wires for motor directional control as a bare minimum. Nothing really new or different about that in an ADF bearing antenna.
Click to expand...
Rotation?
 
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