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AstroPlane damage

RT431

In the swamp
Dec 2, 2018
743
1,374
153
Nebraska
We had a severe t storm come through yesterday with 90 mph winds. The AP did not survive. The beam faired well with it only 22' and horizontal. The Imax will be going up untill I can repair the AP.

IMG_20211216_074450413.jpg
 

loosecannon

Sr. Member
Mar 9, 2006
4,160
3,530
273
so what happens with these antennas is that the hoop gets to swaying back and forth in the wind and puts a great amount of stress on those mast stand-off fasteners, as well as the aluminum element itself.

the solution is to use some UV rated thin bungee cord to tie the hoop to the mast.
dont make it too tight, just snug with room for the bungee to stretch.

this will transfer the load on to the mast and when the wind blows, the whole antenna will bend the mast as one unit.

don't try to use tie line or cable ties or anything else that won't give a bit, as this will put you in the same situation where you are putting stress on those mast stand-offs.
LC
 

loosecannon

Sr. Member
Mar 9, 2006
4,160
3,530
273
just looked at the picture closer.

is that an original astroplane? for some reason i thought it was the copy by CTE.

if so, then yeah it does look like that set screw might have just wiggled loose and given way.
LC
 
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RT431

In the swamp
Dec 2, 2018
743
1,374
153
Nebraska
Yes it's an original AP.
And that's what I see also. I hope that is the case. But won't know till it comes down. Hope the weather warms up enough.
 

tecnicoloco

Tweaknician in Training
Apr 23, 2005
597
333
73
South of Disorder
just looked at the picture closer.

is that an original astroplane? for some reason i thought it was the copy by CTE.

if so, then yeah it does look like that set screw might have just wiggled loose and given way.
LC

Hi LC:

It looks like a CTE ,I have one brand new in the box

Mine seems flimsy , time will tell when my GM fails and use this CTE

73 de Andy/Tecnicoloco
 

loosecannon

Sr. Member
Mar 9, 2006
4,160
3,530
273
It's definitely not the CTE model, as the mast stand off bracket is different in the CTE and the elements don't telescope into each other.

the CTE i have has held up quite nicely over the 10+ years i've had it.

the aluminum will start to split where they flattened the ends, but that's about it.

the one thing i would do is just toss their hardware right in the trash. the hardware that came with the CTE astroplanes was complete crap.

get some SS hardware and you'll be all set.
LC
 

wildchild455

Active Member
Mar 19, 2006
92
78
28
Glad to seer you got it fixed and back up. I did something with the one I use to have a while back I took 80 pound test braided fishing line andwent 4 direction on the bottom hoop to brace it up some worked well for me until Jan. 3 2000 nothing will survive during a EF 3 tornado.I wish I could get my hands on one of those Targa BT-101 anternnas.
 
Last edited:

RT431

In the swamp
Dec 2, 2018
743
1,374
153
Nebraska
Well, the AP has issues. The SWR climbed to 1.5 and gets worse as I higher in frequency. Thinking the element that came apart has a crack. So, I installed the Imax 2K. SWR on 1 is 1.5, 1.2 on 40 and 1.1 on 27.555.0.
IMG_20220116_112239379_MP.jpg
 

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