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ASTROPLANE best vertical antenna ever?

Picked up another ap original. I’ll have to rear it apart and clean it all up. Seems to be in good shape other than the nuts and bolts of course.

I may not mention this much, but I like it when people get these old original antennas and restore them. And this being one of my favorite antennas to explore...

Keep up the good work.


The DB
 
Does it matter if I isolate the mast from the tower? I’m at 50’ to the bottom of the skirt on a tower. Also wouldn’t I need a choke at the same place it isolated from the tower? Isn’t that like 9’? But just how much difference does it make if any
 
If you isolate it a little over 1/4wave below the hoop & choke the coax at the same point it reduces/eliminates cmc on mast & coax screwing up the pattern,

The DB made some models he posted on here with isolation at different distances below the hoop.
 
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What makes it so quiet compared to others? blows my mind the difference between Astro and a different antenna. Is there another antenna that quiet?
 
During the rare free time I had at work today I read through some of the earlier posts in this thread. The old days where several of us were dissecting these antennas and others trying to figure out how they actually worked... I learned a lot doing that, and learned modeling as well. Me and others taking into account the various thoughts and ideas, and presenting our own to see what others thought...

I simply wouldn't be where I am today, knowledge wise, without it.

And a piece of me misses it...


The DB
 
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I think it’s a great thread. Full of mostly friendly polite theorizing. I enjoyed it. Thank yall
Agreed. I always enjoyed the exchanging of ideas here, and it stayed pretty civil. I look back at all the antennas that were available during the 70's, and Avanti really had some interesting products.
 

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