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Ham Band Use for Direct TV Dish and LNA?

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Christopher A. Bowne

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Jul 1, 2002, 8:57:12 AM7/1/02
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A discarded (for reasons unknown) DirecTV dish and LNA followed me home from
the freebie shed at our local town dum..err. solid waste recycling facility.
Other than mounting it on the house to fool the neighbors into thinking we
have satellite TV, does it have any practical UHF ham band application?

Chris, AJ1G
Stonington, CT


Christopher A. Bowne

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Jul 1, 2002, 8:57:12 AM7/1/02
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w9gb

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Jun 30, 2002, 9:54:01 AM6/30/02
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Chris -

Here are "the numbers" from what you can expect from a system for satellite
usage.
http://webhome.idirect.com/~griffith/hrindex.htm#index


Some would suggest that you need a 90 cm antenna
(which may be true for some QTH)


Plans and experiments
http://members.aol.com/k5oe/


N3IYR actually had a commercial mfg. build the helix with cover:
http://www.n3iyr.com/index.html

Robert W0LMD has the ultimate usage for TVRO dishes (of all sizes)
http://www.ultimatecharger.com/dish.html


Dish feeds:
http://www.ultimatecharger.com/Dish_Feed.html

http://www.ultimatecharger.com/Dishes_for_sale.html

http://www.ultimatecharger.com/Dish_DownConverters_and_Preamps.html

73 de w9gb

Greg

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Dick Carroll

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Jul 2, 2002, 8:59:08 AM7/2/02
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It'd make a good "dummy'. Mount it high and run RG58 to it-but don't
hook the dish end of the coax to anything, just let it float. Load the
coax shield as a random wire antenna vertically polarized. You won't
even have to worry about antenna insulators. Lay a 30-40 foot wire on
the ground in a flower bed etc. for the counterpoise.

I use a "spare" dish mounted on a discarded floor model electric fan
stand (which breaks down for compact storage) for portable satellite TV
when we travel.

Dick

Dick Carroll

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Jul 3, 2002, 9:51:55 PM7/3/02
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With a little imagination you can invent your own name for it.
Something like cross attitude field or XZY H.....

Phil Bradway

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Jul 4, 2002, 9:15:10 AM7/4/02
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For information on feeding off-set feed dishes, check out
http://www.w1ghz.org/ (click on his antenna book on line). Paul has had
great success on 10G and a friend of mine has one set up on 5G.

Phil

"Dick Carroll" <di...@townsqr.com> wrote in message
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Richard Miles

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Jul 9, 2002, 11:54:08 PM7/9/02
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Actually there are good uses for it besides using it for a planter. A
friend of mine K7PF modified one to use with a 2.4G wireless netowrk.
The primary modification was to the antenna feed. he used a tin can fed
about two inches from the end and mounted it with a hose clamp to the
LNB arm
The initial tests were very good with about 20-25 db of gain realized.

Richard Miles K7RNZ

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