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Old 24th Jun 2019, 10:46 pm   #1
Sparky67
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Default Luftwaffe Antenna Feed?

I was in France last week and took the opportunity to visit the old Luftwaffe KGr100 base at Vannes-Meucon airfield whilst passing through the area.


There are a few substantial concrete buildings left and a few hangars from the German occupation. On one building this caught my eye. It is about 9" square. Could it be an antenna feed plate?


Martin
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Old 25th Jun 2019, 2:00 am   #2
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Default Re: Luftwaffe Antenna Feed?

I'd have expected a large central hole for a glass or glazed ceramic insulating bush.

Ironically, I was at a friend's last week and he was machining-up an HF antenna feedthrough mounting to replace a missing one in a Dakota which once dropped parachutists and stuff over such places: "Night Fright" which is being restored to fly again. The actual plane his father flew back in the day! They hope to fly it to a D-Day remembrance event in the next year or so. Shame Britain doesn't do /AM amateur radio licences.

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Old 25th Jun 2019, 10:01 am   #3
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Default Re: Luftwaffe Antenna Feed?

Propriete privee
Ne pas monter

Now there's a challenge......
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Old 27th Jun 2019, 10:12 pm   #4
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Default Re: Luftwaffe Antenna Feed?

My French is a bit rusty - as were four brackets spaced out on the roof which I spotted on a previous visit, which looked they they may have once held poles which could be raised and lowered.

I agree about a glass insulator. However, with what looks like an insulated plate and a brass thread and nut, the only other thing I could think it could be used for is a single HT / EHT feed?

I will do a bit of further research and see if I can turn anything up.

All the best,

Martin
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Old 28th Jun 2019, 1:03 am   #5
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Default Re: Luftwaffe Antenna Feed?

Does the close-up picture show two conductors? If so, could it be Pyrotenax-type mineral insulated electric cable?
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Old 28th Jun 2019, 10:07 am   #6
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Default Re: Luftwaffe Antenna Feed?

I think the French means,private property do not pass this point.
More precisely Do Not Go Up In The First Place.

No way that is an aerial feed.
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Old 28th Jun 2019, 11:22 am   #7
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Default Re: Luftwaffe Antenna Feed?

It looks to be a steel plate spreading the force of five through bolts, probably to hold something on the inside. Perhaps a hook for a heavy medal bestrewn uniform or a very large pair of 'powerful gestapo binoculars'

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Old 28th Jun 2019, 1:58 pm   #8
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Default Re: Luftwaffe Antenna Feed?

Quote:
Originally Posted by HamishBoxer View Post
I think the French means,private property do not pass this point.
More precisely Do Not Go Up In The First Place.

No way that is an aerial feed.

Literally: Private property, do not climb (the staircase).


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Old 28th Jun 2019, 6:27 pm   #9
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Default Re: Luftwaffe Antenna Feed?

I assumed that the insulated panel was a piece of decayed Tufnol or Paxolin sheet.

It could have been put there after the war to seal the hole.
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