Re: Rotators for loop antenna
You can couple a short piece of pipe to the backside of the rotator mounting bolts with another set of mast clamps and run up another mast/pipe parallel to just under the loop. Then space another set
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Holmzie N2EXG
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#20058
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Re: Some thoughts on cases for exterior loop antenna amplifiers
To Mike M.
Are those Carlon PVC cases?
I live 20ish miles south of Lexington KY, say 25 miles south of 38 degrees north latitude.
My PVC cases sure don't look like that after a few years! And, unless
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wn4isx <wn4isx@...>
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#20057
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Re: Some thoughts on cases for exterior loop antenna amplifiers
Hi Mike,
Thanks for posting those photos.
To be honest I'm amazed it held up so well.
Although the box is exposed to the elements, the outer surface shows no sign of oxidisation, which is usually a
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Martin - Southwest UK
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#20056
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Re: Some thoughts on cases for exterior loop antenna amplifiers
Sorry I'm late to the discussion. I am moving and was taking down an active antenna and decided to open up two boxes that have been outside to see how they look inside. I am located in western
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Mike M
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#20055
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Re: Rotators for loop antenna
Hi Simon,
Yep, totally agree and I'm Ok to spend more money on quality rotator.
I was actually thinking about Yaesu G800DXA. That's one step up -
should be holding even better. And looks like I really
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rfsam
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#20054
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Re: Rotators for loop antenna
That's a great idea! I was thinking about using some guy wires and
some piece of PVC over the mast... Cannot use ground for any mounts as
my balcony is ~4m about ground surface and we have a garage
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rfsam
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#20053
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Re: Rotators for loop antenna
Hi
If you got $300 or so available just go buy a yaesu 450 rotator.. job done, safe, looks good (Wife and Landlord friendly.) reliable and holds resale value.
Have one here holding up tein 2m
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Simon
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#20052
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Re: Rotators for loop antenna
Another option I thought of as I was cleaning out a box of stuff.
A few years ago our meter pole started to lean becasuse of moles.
I initially was going to use guy wires to hold it upright and bought
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wn4isx <wn4isx@...>
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#20051
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Re: Some thoughts on cases for exterior loop antenna amplifiers
These are available in the US and I have used them extensively on 4G cellular modules in freezing temperatures with high saturated humidity
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tardivat@...
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#20050
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Re: Some thoughts on cases for exterior loop antenna amplifiers
This whole discussion makes me think that maybe double boxing is the
easiest way to go :)
<wn4isx@...> wrote:
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rfsam
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#20049
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Re: Rotators for loop antenna
Yeah, I used unistruts/superstruts for some of my other projects...
Looks like he got quite a bit of a setup. I'm trying to avoid that.
Maybe I just look into other more heavy duty rotators. Thank you
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rfsam
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#20048
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Re: Some thoughts on cases for exterior loop antenna amplifiers
I'm still researching ways the big boys in high tech protect their electronics, this site doesn't quite qualify as big boys but is
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wn4isx <wn4isx@...>
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#20046
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Re: Rotators for loop antenna
He used PVC pipe cut lengthwise with hose clamps to compress the PVC for a "sort of snug fit." lubricated with silicon grease and fabricated an "umbrella" with a hole in it to keep out water. This was
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wn4isx <wn4isx@...>
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#20045
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Re: Rotators for loop antenna
Thank you for this description.
So if I understand you right your friend is using an additional Pi-shaped
support above Philips rotator? I assume rotating mast comes out of rotator
and goes up through
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rfsam
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#20044
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Re: Rotators for loop antenna
A ham friend uses a Phillips TV antenna rotator, probably the same guts as your antenna.
He added
**
Allied Tube & Conduit 10-ft 12-Gauge Electro-galvanized Slotted Channel
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wn4isx <wn4isx@...>
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#20043
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Rotators for loop antenna
Let's talk about rotators for loop antennas. I hope it's not too much of an off topic?
Just got my cross parallel loop installed on cheap RCA rotator designed for TV antennas (VH226e).
My antenna is
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rfsam
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#20042
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Re: Some thoughts on cases for exterior loop antenna amplifiers
I'm afraid I don't have any ideas outside of MILSPEC conformal coatings, or embedding in epoxy, and even then, equipment is usually inside something else that takes the brunt of damaging conditions,
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Facility 406
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#20041
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Re: Some thoughts on cases for exterior loop antenna amplifiers
Hi Kurt,
What would you recommend that's easy to apply? I can re-apply it once
in half a year or so. Not really expecting it to last 25
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rfsam
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#20040
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Re: Some thoughts on cases for exterior loop antenna amplifiers
I can:
NOT, NOT, NOT!
Recommend the Krylon UV Archival Spray.
As applied, it sucks. Fails almost immediately, relatively speaking, maybe a month or two.
8 coats?
Still sucks, but fails in a
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Facility 406
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#20039
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Re: Some thoughts on cases for exterior loop antenna amplifiers
Maybe something
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rfsam
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#20038
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