i have not seen this posted before so i will describe a simple way to convert a superdish for true fta use. 1. take apart the original lnb by removing the screws holding it together..discard the lnb. 2.drill holes to match the new linear lnbs mounting holes..you must use the "square" type of lnb as the other style will not fit in the arm. i used a roc model 785a linear lnb from e-bay but other linear models you may have should work too. 3. set the tilt and elevation adjustments for your area. 4.aim and peak signal. thats it. there are other ways to use a superdish for true fta but this one works for me. just be SURE to use a linear lnb like the one in picture #3 to assure proper fit and performance. i get g-10r at 60-70% quality in sw.va. with this set-up. the square style lnb makes it easy to add another linear lnb on the side for ia7- white springs tv- if you wish. see attached files for pictures.
convert superdish to true fta use
- Thread starter bobnva
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neener, neener, neener
regards -
Anole said:
Trying to corner the market? -Tron said:Thanks for the thought, Anole
regards -
Nah, not trying to corner the market, just was cringing at the word "discard" The trash is no place for such a useful item...
I think we'll be seeing plenty of the Dish FSS stacked LNBs, and the great thing about them is that they are very useful on any feedhorn with a C-120 flange. This means CMs, Primestars, DirecWay dishes, etc. There's also the T-90 application, as JerryT has done.
The trash is no place for such a useful item...I think we'll be seeing plenty of the Dish FSS stacked LNBs, and the great thing about them is that they are very useful on any feedhorn with a C-120 flange. This means CMs, Primestars, DirecWay dishes, etc. There's also the T-90 application, as JerryT has done.
I have converter several SD's to True FTA by removing the lnb's fron the bracket and cutting and drilling a 1/4 thick piece of plastic that mounts to the SD bracket and holds a 40mm LNB bracket. I discovered today that the FSS lnb also bolts right up to Primestar feed horn, can't wait to try it out.
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the superdish 121 or 105 lnb works fine for true fta with out any modification, notice all the guys asking for the "discarded" lnb hehe
altering a superdish by replacing the original lnb assembly with a single linear lnb is a matter of aesthetics and is a personal choice. it no longer has the bulky eyesore look of the superdish .it makes for an attractive clean installation that also performs very well. just dont discard the original lnb assembly or you face a very real risk of being flamed . hehe
I never thought about aesthetics, but you are right - the stock Dish dish 'n LNB is pretty ugly.
But in better defense of those not using the Dish LNBs, many folks:
- don't understand 'em,
- don't trust 'em to be as sensitive as well known models,
- don't know how to use bandstacked LNBs,
- can't easily mix bandstacked with their other LNBs...
And after looking at some of 'em, I'm just glad the weather is so nice out here.
They sort of look like the shroud over 'em might be a good idea.
mroodey - a lot of receivers already know how to deal with 'em.
They have a setting called, "OCS", which stands for one cable solution.
Which just means you can get both polarities at the same time on a single cable.
But in better defense of those not using the Dish LNBs, many folks:
- don't understand 'em,
- don't trust 'em to be as sensitive as well known models,
- don't know how to use bandstacked LNBs,
- can't easily mix bandstacked with their other LNBs...
And after looking at some of 'em, I'm just glad the weather is so nice out here.
They sort of look like the shroud over 'em might be a good idea.
mroodey - a lot of receivers already know how to deal with 'em.
They have a setting called, "OCS", which stands for one cable solution.
Which just means you can get both polarities at the same time on a single cable.
Not trying to hijack or anything but isn't one of the LNB's on a Dish 500 dish Ku? Or are they both circular or are they proprietary to Dish network?
The venerable "Dish 500" can be equipped with about four LNB options.
But in all cases, they are:
- two circular LNBs,
- with an LO of 11.250ghz for the high end of the Ku DBS band,
- and employ one of several switching techniques, including
.. none
.. proprietary , but found on some hack-modified FTA receivers
.. diseqc, (DishPro) just like we know and love it, but bandstacked.
.. superset of diseqc, (DishProPlus) involving proprietary capability, but still working in fall-back as diseqc...
On the other hand, SuperDishes are much more modern, and even though they do come in several flavors, all have DishPro (bandstacked) technology, and a combination of DBS (11.25 LO) circular LNBs, along with an FSS (10.75 LO) linear or circular LNB.
(well, tecnhically the FSS is linear, but on some models, it's convertable to circular) -
But in all cases, they are:
- two circular LNBs,
- with an LO of 11.250ghz for the high end of the Ku DBS band,
- and employ one of several switching techniques, including
.. none
.. proprietary , but found on some hack-modified FTA receivers
.. diseqc, (DishPro) just like we know and love it, but bandstacked.
.. superset of diseqc, (DishProPlus) involving proprietary capability, but still working in fall-back as diseqc...
On the other hand, SuperDishes are much more modern, and even though they do come in several flavors, all have DishPro (bandstacked) technology, and a combination of DBS (11.25 LO) circular LNBs, along with an FSS (10.75 LO) linear or circular LNB.
(well, tecnhically the FSS is linear, but on some models, it's convertable to circular) -
Thanks for the explanation Anole.. Coolness. My sister said to get her dish off her house so I will get it down this week and see what it has on it. I am primarily interested in using it for Nasa anyways. So either way it should work for my purposes.
haven't gone OT
Bad - yea, don't waste anything with potential for NASA.
It's so easy, any old 18" with a circular will get it fine. (on 119° bird)
Last year, we even had an extensive thread on the apparently worthless DirecTV Phase III dish.
That's pretty much of a stinker, but creative minds came up with all sorts of uses.
No wonder I love this forum so much. -
And of course, that's the point of this thread -
recycling the SuperDish, either with existing or other LNBs.
Not the best choice; not a dish I'd recommend to a newbie; but the old timers have found many uses for it , and its parts.
See above, CadSulfide sure pressed a bunch of 'em into service. - :up
Bad - yea, don't waste anything with potential for NASA.
It's so easy, any old 18" with a circular will get it fine. (on 119° bird)
Last year, we even had an extensive thread on the apparently worthless DirecTV Phase III dish.
That's pretty much of a stinker, but creative minds came up with all sorts of uses.
No wonder I love this forum so much. -
And of course, that's the point of this thread -
recycling the SuperDish, either with existing or other LNBs.
Not the best choice; not a dish I'd recommend to a newbie; but the old timers have found many uses for it , and its parts.
See above, CadSulfide sure pressed a bunch of 'em into service. - :up
Ex-Superdish121 LNB
After my DN Superdish121 was updated with the 118.7 Repoint Kit, I installed the removed 121W LNB on a DTV Slimline which happened to have the same mounting hole spacing. I had to install the LNB bracket on the bottom of the LNB arm with a double stack of washers to approximate the location of the original Slimline LNB feedhorn which resulted in a minus 1-degree elevation deviation. I was quickly able to confirm G3 95W, G25 97W, and G27 129W. Although the 121 LNB is a band-stacked DP LNB that normally requires the "OCS-DP" setting on an FTA receiver, less duplicate scans were obtained using the "Single" LNB setting.
Photo attached.
After my DN Superdish121 was updated with the 118.7 Repoint Kit, I installed the removed 121W LNB on a DTV Slimline which happened to have the same mounting hole spacing. I had to install the LNB bracket on the bottom of the LNB arm with a double stack of washers to approximate the location of the original Slimline LNB feedhorn which resulted in a minus 1-degree elevation deviation. I was quickly able to confirm G3 95W, G25 97W, and G27 129W. Although the 121 LNB is a band-stacked DP LNB that normally requires the "OCS-DP" setting on an FTA receiver, less duplicate scans were obtained using the "Single" LNB setting.
Photo attached.
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Addendum
Sorry, I forgot to add that the DTV Slimline has the best dish aiming mechanisms as demanded by the narrow Ka(18GHz) signal beams. I love the fine adjustments the dish offers. I welcome all Slimline gifts! Thank you.
Sorry, I forgot to add that the DTV Slimline has the best dish aiming mechanisms as demanded by the narrow Ka(18GHz) signal beams. I love the fine adjustments the dish offers. I welcome all Slimline gifts! Thank you.
To avoid duplicate scans using a stacked LNB, you must scan only vertical. The LNB stacks the horizontal TPs in a frequency range above the vertical ones.
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