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Author Topic: Direct TV Dish  (Read 3043 times)
KT4NR
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Posts: 548




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« on: February 03, 2017, 10:35:00 AM »

So someone in my development chucked out an Oval Direct TV Dish with the feed, a vertical section, and who knows what else attached. I am not a microwave guy (yet) but I know enough to dumpster dive for such items.

Is this dish of use for future microwave ops? which bands?

Thanks!
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W8JX
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Posts: 12080




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« Reply #1 on: February 03, 2017, 11:07:29 AM »

I would leave it in dumpster. Its for around 12ghz and they are easy to get used as they do not reuse them when service is discontinued and of little value.
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Ham since 1969....  Old School 20wpm REAL Extra Class..
W1VT
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Posts: 2414




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« Reply #2 on: February 03, 2017, 11:12:13 AM »

They are useful for 6 and 10 GHz.  I've personally worked as far as 300 miles with one, operating from Hammonasset beach in Connecticut.  The other guy was on Reddish Knob in WV.

Zack W1VT
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W4KYR
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Posts: 1560




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« Reply #3 on: February 03, 2017, 11:18:04 AM »

So someone in my development chucked out an Oval Direct TV Dish with the feed, a vertical section, and who knows what else attached. I am not a microwave guy (yet) but I know enough to dumpster dive for such items.

Is this dish of use for future microwave ops? which bands?

Thanks!


I think you can use that for FTA (Free To Air) non encrypted channels satellite TV using a different feed horn and buying an FTA receiver.

http://www.satelliteguys.us/xen/forums/free-to-air-fta-discussion.24/

You should be able to use that dish as a reflector for Broadband - Hamnet, HSMM-Mesh and maybe AREDN . That is where hams take certain specific kinds of wifi routers and re-flash them to use on the microwave ham bands.

http://www.broadband-hamnet.org/

http://www.aredn.org/
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The internet and cellphone networks are great until they go down, what then? Find out here. 
https://www.eham.net/ehamforum/smf/index.php/topic,111948.0.html

Using Windows 98 For Packet...
N1UKX
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Posts: 98




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« Reply #4 on: February 03, 2017, 11:21:19 AM »

Could make a slot antenna for 2 meters with it........
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KT4NR
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Posts: 548




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« Reply #5 on: February 03, 2017, 12:41:10 PM »

Great ideas all. Thanks!

Will hold onto it for now until I or someone around me can use it.
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W4CDO
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Posts: 23




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« Reply #6 on: February 03, 2017, 12:49:10 PM »

You could use it to build a radio telescope. See the my reply to post "Ideas for Using an Old Satellite Dish" under "Homebrew".

Jerry W4CDO
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N8EKT
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Posts: 583




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« Reply #7 on: February 03, 2017, 05:41:33 PM »

a parabola focuses much more than just rf

you can use it for long range listening or you can cover it in foil furnace tape and make a solar furnace
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K3GM
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Posts: 2217




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« Reply #8 on: February 04, 2017, 06:10:36 AM »

There's an article in a recent issue of QST on how to modify an oval dish into a 2m slot antenna. W6NBC is the author, and I believe his work is available online.
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ONAIR
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Posts: 3504




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« Reply #9 on: February 04, 2017, 03:17:22 PM »

Keep it!  Many hams in HOAs use them to disguise ham antennas by using the connecting "cable"!   Roll Eyes
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KG7CSS
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Posts: 114




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« Reply #10 on: February 10, 2017, 11:51:29 AM »

Thanks I seen lot of dish tv antennas super cheep or  in the free pile at yard sales.
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VE6MB
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Posts: 53




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« Reply #11 on: February 10, 2017, 12:12:48 PM »

The dish is not useless. I can't speak specifically for effectiveness of the oval shaped ones. But the standard round 18" offset dish is usable starting at around 2.4Ghz (too small for 1.2Ghz) and higher. Back in the day of the AO-40 satellite with S-mode (2.4Ghz) downlink I used a 24" unit and downconverter (no preamp) to monitor the satellite.

Good Luck with it.

Tino, VE6MB
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N0YXB
Member

Posts: 1100




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« Reply #12 on: February 10, 2017, 08:03:05 PM »

So someone in my development chucked out an Oval Direct TV Dish with the feed, a vertical section, and who knows what else attached. I am not a microwave guy (yet) but I know enough to dumpster dive for such items.

Is this dish of use for future microwave ops? which bands?

Thanks!


I think you can use that for FTA (Free To Air) non encrypted channels satellite TV using a different feed horn and buying an FTA receiver.

http://www.satelliteguys.us/xen/forums/free-to-air-fta-discussion.24/


The is cool, thanks for that.
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FORMER_K2OOL
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Posts: 13




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« Reply #13 on: February 13, 2017, 11:39:03 AM »

Free to air,you need a bigger dish 36 inch dish 

http://www.sadoun.com/Sat/Order/Dishes/Free-to-air-satellite-dish.htm
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