so i want to know if there is a way to use three dishes instead of one. i know i need 99 101 103 satellites. can i just use a 36" dish and put a directv single lnb on it from a 18" dish? thanks
Directv Dishes
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I think it's possible, but not easy. Try a search here. I seem to remember a thread about it a couple of years ago. It sounds like you have line of sight issues.
No ...
As 101W uses the DBS Ku band (12.2-12.7 GHz)
And 99 and 103W use the Ka and new Reverse bands (18.3-18.8 GHz, 19.7-20.2 GHz, and 17.3-17.7 GHz).
The old DIRECTV single LNB for the original 18 in. round dish can only receive the DBS Ku band mentioned above.
Plus even if you could receive them separately like that, there exist no external way to properly combine these bands for feeding a receiver.
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There was a guy somewhere south of the border who posted about this a few years ago. He was able to connect three dishes together although it was very difficult. Signal strength was his biggest issue IIRC.
thank you to everyone. i was thinking the ka band was going to be a problem. now even if i had a ka band lnb it still wont work? thanks
You can use a single 101 only LNB on some larger dishes designed for that but not with a 99-101-93 LNB, the dish focal point and other parameters are very specific to the dish it comes with. If you need something bigger you can get an old Alaska/Hawaii dish available in two sizes which will have a specific LNB that covers 99-101-93. The 1.2m AK/HI dish has about 5dB more gain than a Slimline.
Its possible but you would have to buy some custom LNB stuff, diplexers and 22KHz switches.
The first DirecTV Ka signals with video were received on a prototype AU9 dish with all but one feed covered with aluminum foil and it fed a home made converter to fool the L band only input of the test receiver. BTW, the reflector on that dish was not stamped, it was machined out of a solid block of aluminum. With enough time and money you could assemble anything.
The first DirecTV Ka signals with video were received on a prototype AU9 dish with all but one feed covered with aluminum foil and it fed a home made converter to fool the L band only input of the test receiver. BTW, the reflector on that dish was not stamped, it was machined out of a solid block of aluminum. With enough time and money you could assemble anything.
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Very interesting ...
But wouldn't that dish actually be the prototype of the "AT-9" 1st generation Ka/Ku ODU?
(That is, the one with the 110/119 sidecar?)
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The only way to split everything would be using a DSWM 30 switch.
The first 2 inputs are for 101/99 and the second 2 are for 103/119/110 and the last 2 are for reverse band.
The only thing possible would be 2 slimline dishes and split it up by legacy ports.
The whole issue is how Directv combines the KU and KA signals for 99/101 and 103/119.
Combining 110/119 used to be easy with a special “sat c” kit that would combine 110 with a special splitter.
I really wish Directv would offer some type of stand alone LNB and an external combiner before it went into a swm switch.
The first 2 inputs are for 101/99 and the second 2 are for 103/119/110 and the last 2 are for reverse band.
The only thing possible would be 2 slimline dishes and split it up by legacy ports.
The whole issue is how Directv combines the KU and KA signals for 99/101 and 103/119.
Combining 110/119 used to be easy with a special “sat c” kit that would combine 110 with a special splitter.
I really wish Directv would offer some type of stand alone LNB and an external combiner before it went into a swm switch.
I have one of those dishes that I have kept inside my building for years. I wonder if there is still a use for it since everything went slimline these days.
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It should work fine, the Slimline 5 LNB was a product improvement over the AT9 with the same functionality.
Here's what you'd need to do to use three separate dishes:
99 dish supplies:
DSWM30 first/second input: 250-750 MHz Ka lo (need 2x low pass filter)
DSWM30 first/second input: 1650-2150 MHz Ka hi (need 2x high pass filter)
DSWM30 fifth/sixth input: 250-650 reverse band (need 2x low pass filter)
101 dish supplies:
DSWM30 first/second input: 950-1450 MHz Ku (need 2x band pass filter)
103 dish supplies:
DSWM30 third/fourth input: 250-750 MHz Ka lo (need 2x low pass filter)
DSWM30 third/fourth input: 1650-2150 MHz Ka hi (need 2x high pass filter)
DSWM30 fifth/sixth input: 1750-2150 MHz reverse band (need 2x high pass filter)
The maximum SNR of Directv transponders are about 15-16 db, and there is up to a 10 db variation from the strongest to the weakest transponders, so you'd need filters with a minimum of 25 db attenuation - you'd probably want to go 30 db just to be safe. The low pass filters would need to hit that level of attentuation by 950 MHz, the high pass filters by 1450 MHz, and the band pass filters by 750 & 1650 MHz. You won't find these off the shelf, you'd need to order them and probably spend a few hundred dollars if you could find one with specs that are close enough. If you need them custom made, then you're talking thousands.
When you combine the signals post-filter into the DSWM30 inputs there will be some loss, so if you were hoping you'd get stronger signals like this you'll lose some of your advantage (certainly any advantage you'd gain by using a mere 36" dish)
You'd end up spending a lot of money to end up with a frankenmonster setup that didn't perform any better than a Slimline (unless you were using some truly large dishes) which would be more prone to problems since there would be a lot more parts, cables, connectors etc.
If this is something you want to do simply to see if it can be done, then by all means post your progress. In the abstract it is a ridiculous idea, but I'd love to see someone do it
99 dish supplies:
DSWM30 first/second input: 250-750 MHz Ka lo (need 2x low pass filter)
DSWM30 first/second input: 1650-2150 MHz Ka hi (need 2x high pass filter)
DSWM30 fifth/sixth input: 250-650 reverse band (need 2x low pass filter)
101 dish supplies:
DSWM30 first/second input: 950-1450 MHz Ku (need 2x band pass filter)
103 dish supplies:
DSWM30 third/fourth input: 250-750 MHz Ka lo (need 2x low pass filter)
DSWM30 third/fourth input: 1650-2150 MHz Ka hi (need 2x high pass filter)
DSWM30 fifth/sixth input: 1750-2150 MHz reverse band (need 2x high pass filter)
The maximum SNR of Directv transponders are about 15-16 db, and there is up to a 10 db variation from the strongest to the weakest transponders, so you'd need filters with a minimum of 25 db attenuation - you'd probably want to go 30 db just to be safe. The low pass filters would need to hit that level of attentuation by 950 MHz, the high pass filters by 1450 MHz, and the band pass filters by 750 & 1650 MHz. You won't find these off the shelf, you'd need to order them and probably spend a few hundred dollars if you could find one with specs that are close enough. If you need them custom made, then you're talking thousands.
When you combine the signals post-filter into the DSWM30 inputs there will be some loss, so if you were hoping you'd get stronger signals like this you'll lose some of your advantage (certainly any advantage you'd gain by using a mere 36" dish)
You'd end up spending a lot of money to end up with a frankenmonster setup that didn't perform any better than a Slimline (unless you were using some truly large dishes) which would be more prone to problems since there would be a lot more parts, cables, connectors etc.
If this is something you want to do simply to see if it can be done, then by all means post your progress. In the abstract it is a ridiculous idea, but I'd love to see someone do it
Here's an example of what you'd need. This is a Chinese company so you may not even be able to order these here (at least not in the small quantities you'd need) but maybe you could poke around Alibaba to find someone who sells them and see if they can get you what you'd need. Or at least know what to look for from somewhere closer to home. They are overspec'ed for what you need, they have something like 50db rejection, so are probably more expensive than what you might find elsewhere.
SOONTAI - CATV Low Pass Filter (CE Approved / High Q Series)
SOONTAI - 950MHz High Pass Filter (CE Approved, 950-2300MHz, Rejection 55dB) (these aren't quite what you need, the frequencies are a bit off)
SOONTAI - Band Pass Filter 950-2150MHz (CE Approved / High Q Series)
You don't need to worry about power passing in the filters/combiners, you'd want to use a polarity locker to power each dish's LNB (2x SL5KRB 1xwhatever you want that receives 101) to make sure things are as stable as possible. You'd only need two polarity lockers since you can use unused outputs on the 103
dish's polarity locker to power the 101 dish)
Found a link on solidsignal to one you can actually buy, but I'm not sure if its specs are up to snuff since there is no datasheet.
Sonora LPF806 High Return Loss F Female to F Female 806 MHz Low Pass Filter (LPF806) from Solid Signal
SOONTAI - CATV Low Pass Filter (CE Approved / High Q Series)
SOONTAI - 950MHz High Pass Filter (CE Approved, 950-2300MHz, Rejection 55dB) (these aren't quite what you need, the frequencies are a bit off)
SOONTAI - Band Pass Filter 950-2150MHz (CE Approved / High Q Series)
You don't need to worry about power passing in the filters/combiners, you'd want to use a polarity locker to power each dish's LNB (2x SL5KRB 1xwhatever you want that receives 101) to make sure things are as stable as possible. You'd only need two polarity lockers since you can use unused outputs on the 103
dish's polarity locker to power the 101 dish)
Found a link on solidsignal to one you can actually buy, but I'm not sure if its specs are up to snuff since there is no datasheet.
Sonora LPF806 High Return Loss F Female to F Female 806 MHz Low Pass Filter (LPF806) from Solid Signal
Doesn't matter who makes the filter, so long as you can get one with the correct specs. Most companies are making CATV filters, which is fine for the low pass filter needed, but they wouldn't have any reason to make the band pass or high pass filters with the required spec since CATV doesn't go that high in frequency.
You'd probably have more luck with European companies, since satellite is more "roll your own" over there, it may be someone makes the filters required.
Hi y'all,
Is it possible to use a 18x20 directv dish with the Dmyco D4S Pro DVB-S2 Satellite Receiver ? I would be using a Vanpho Dual Output KU Band LNB High Gain Universal Ku Band Twin Output Hd LNB Lnbf Two Output LNB.
If so what would I need to do to get it to work and receive as many channels as possible?
Thanks for having this forum, I hope this isn't a completely idioticidiotic question. Lol...
Is it possible to use a 18x20 directv dish with the Dmyco D4S Pro DVB-S2 Satellite Receiver ? I would be using a Vanpho Dual Output KU Band LNB High Gain Universal Ku Band Twin Output Hd LNB Lnbf Two Output LNB.
If so what would I need to do to get it to work and receive as many channels as possible?
Thanks for having this forum, I hope this isn't a completely idioticidiotic question. Lol...
to Satelliteguys Itsmejonny!Directv is dropping the ku band signals soon,perhaps as soon as April, and will be using only ka, so unfortunately your question is moot.
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