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Search: Posts Made By: ghz24
Forum: Enthusiast's Exchange 27-Mar-2013, 8:52 PM
Replies: 19
Views: 36,806
Posted By ghz24
Scalas don't scale well

I set aside the scala (like) models temporarily due to strange (and interesting) results. I built them as an intermediate step to the chevron type due to the tendency to beam split/spread above a...
Forum: Enthusiast's Exchange 26-Mar-2013, 7:08 AM
Replies: 19
Views: 36,806
Posted By ghz24
Hi Alan909, Sorry so slow to respond had to...

Hi Alan909,
Sorry so slow to respond had to review my data, I've been working on other projects.
Yes I would advise using the lpda to feed any center feed dish (not offset).
The lpda I used had a...
Forum: Enthusiast's Exchange 16-Jan-2012, 2:02 AM
Replies: 19
Views: 36,806
Posted By ghz24
very E-Z parabola reflector

Built about 20 comparable models (different shapes and feeds but similar sized) and have found an lpda feed that makes a great feed for a parabola.
It won the gain and swr contest for all shapes I...
Forum: Enthusiast's Exchange 20-Nov-2011, 6:10 AM
Replies: 19
Views: 36,806
Posted By ghz24
still one the best antennas

That is true, but I do think a
parabolic has some qualities (over an 8 bay or similar antenna) that aren't
readily noticeable. Such as I think a parabola is more tolerant of hot/dead
spots than...
Forum: Enthusiast's Exchange 20-Nov-2011, 2:29 AM
Replies: 19
Views: 36,806
Posted By ghz24
oops

I guess the antenna I thought had a folded dipole feed wasn't a finco but an antenna craft. maybe.
Forum: Enthusiast's Exchange 18-Nov-2011, 7:22 PM
Replies: 19
Views: 36,806
Posted By ghz24
2 meter dish

Here are the specs on the 2 meter dish (http://ghz24.freeshell.org/antenna/2meterdishbiquad.html) and here's the model (http://ghz24.freeshell.org/antenna/models/newermodels/2meterdishbiquad.nec).
...
Forum: Enthusiast's Exchange 18-Nov-2011, 7:10 AM
Replies: 19
Views: 36,806
Posted By ghz24
broadcast antennas I missed that

Maybe that's why JC got upset. This thread is supposed to be for broadcast antennas ? I didn't intend to hijack the thread (but if/since It's abandoned I will pick it up).
But I don't think that's...
Forum: Enthusiast's Exchange 17-Nov-2011, 12:53 PM
Replies: 19
Views: 36,806
Posted By ghz24
you'll get more help if

hi Dexter702
This is a discussion of deep fringe antennas to get help with reception or antenna selection start a new thread here
http://forum.tvfool.com/forumdisplay.php?f=7
you should include a...
Forum: Enthusiast's Exchange 9-Aug-2011, 6:23 AM
Replies: 19
Views: 36,806
Posted By ghz24
good use for a biquad

If you're looking for a good antenna to place at the focus of a large dish I'd suggest a biquad (with a reflector) because the large beamwidth will illuminate the whole dish. I've been working on a...
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