Phase III Dish / SL3 LNB camping dish

[schneid]

It is not a "Dish" arm but instead a DirecTV Phase III mounting assembly, backplate and arm, with a second Phase III arm scabbed on top. The "Dish" reflector is taller and wider so that may justify the positioning. The Dish birds are 10º apart while the DirecTV birds are only 2º apart which I imagine is a factor. It is probably wrong to assume focus is maintained as the arm is lengthened or shortened. Their are many other angles introduced by the dissimilar hardware used. That is the sweet spot arrived at via two different routes by "mikestock" and me. Hard to argue with success. There is NO signal if one moves away from the sweet spot too much. Very small adjustments have huge results. Who said, the focus is poor? It is optimized for the equipment used and the results are impressive considering the the size of the dish. It is BETTER than using a Phase III reflector or why would we bother? It does not come close to a Slimline but for our purposes, good enough, plenty good enough.



Slug through the DBSTalk posts to get a greater understanding of the effort.

[schneid]

If you use SWM for tailgating don't forget you need a 21v PI too. I started with an SL3 on a Phase III, then swapped in a "Dish" 1000.2 reflector, and have now swapped in the "Dish" 1000.2 mast assembly. Get 90's off the 101 and 80's off the 99 and 103. "Dish" geometry is a little better.


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[dfergie]

If you use SWM for tailgating don't forget you need a 21v PI too. I started with an SL3 on a Phase III, then swapped in a "Dish" 1000.2 reflector, and have now swapped in the "Dish" 1000.2 mast assembly. Get 90's off the 101 and 80's off the 99 and 103. "Dish" geometry is a little better.


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This is what I want to play with tomorrow with a SL5 LNB to see what I can get as hunting seasons are coming up...

[schneid]

I think I really have a Dish 1000.4 on a Dish 1000.2 mast assembly. I bought the dish off eBay as a 1000.2 but it measures 25" across making me think it is a 1000.4. I also have what I think is a a dish 1000.2 which is 22". It is really flimsy and I am afraid I'd bend it if I moved it around a lot. Dish has several dishes with different paint schemes, all oval, so I don't really know what I have. It used to say "Dish Turbo HD". There is also a Super Dish that is Slimline size so no point trying that.

[Joe Diamond]

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It is not a "Dish" arm but instead a DirecTV Phase III mounting assembly, backplate and arm, with a second Phase III arm scabbed on top. The "Dish" reflector is taller and wider so that may justify the positioning. The Dish birds are 10º apart while the DirecTV birds are only 2º apart which I imagine is a factor. It is probably wrong to assume focus is maintained as the arm is lengthened or shortened. Their are many other angles introduced by the dissimilar hardware used. That is the sweet spot arrived at via two different routes by "mikestock" and me. Hard to argue with success. There is NO signal if one moves away from the sweet spot too much. Very small adjustments have huge results. Who said, the focus is poor? It is optimized for the equipment used and the results are impressive considering the the size of the dish. It is BETTER than using a Phase III reflector or why would we bother? It does not come close to a Slimline but for our purposes, good enough, plenty good enough.

Slug through the DBSTalk posts to get a greater understanding of the effort.

Actually both Dish & Direct main sats are nine degrees apart. The Direct HD sats at 99 and 103 are in a lower position on either side of the 101 position. It is an FCC thing. This clever manipulation of the regs produced the single dish solution.

Joe

[schneid]

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Not sure what you are getting at.