Could this be my answer?

[risk]

i found this yesterday


hxxp://www.futurevisionsat.com/catalog/item/548159/499651.htm

what do you guys think about it?
how well do you think it will work bein very slightly offset from cernter?
is it just a scalar ring with a hole to one side? something someone may have tried before?

this would really complete my setup (circular and linear c/ku bands) and make my 12' smile (when its in place)

i mail the ppl but no reply as yet.

[TurboPirate]

i found this yesterday


hxxp://www.futurevisionsat.com/catalog/item/548159/499651.htm

what do you guys think about it?
how well do you think it will work bein very slightly offset from cernter?
is it just a scalar ring with a hole to one side? something someone may have tried before?

this would really complete my setup (circular and linear c/ku bands) and make my 12' smile (when its in place)

i mail the ppl but no reply as yet.

If this in photo is what you mean. Then I think you can make that and use any KU LNB removing the plastic cover of it and it will look exactly like that.

[Bowhunters]

I have that exact ring with the Directv LNB on my BUD right now that I bought through Skyvision, i've debated taking it to a machine shop and having the metal ring cut so I can remove it and to swap to a Dish LNB but I haven't done it as of yet.

Can you just unscrew the protective cap to remove it instead of cutting the scaler ring to get it out?

I've procrastinated the heck out of it. LOL

[risk]

I have that exact ring with the Directv LNB on my BUD right now that I bought through Skyvision, i've debated taking it to a machine shop and having the metal ring cut so I can remove it and to swap to a Dish LNB but I haven't done it as of yet.

Can you just unscrew the protective cap to remove it instead of cutting the scaler ring to get it out?

I've procrastinated the heck out of it. LOL

is this what you have?

hxxp://www.skyvision.com/store/mi3500024.html

how does it work?
im gonna try this. . .how do they secure the lnb to the scalar?

[Bowhunters]

is this what you have?

hxxp://www.skyvision.com/store/mi3500024.html

how does it work?
im gonna try this. . .how do they secure the lnb to the scalar?

Yes thats it.

There is a hole in the scaler ring that the throat of the LNB sits into, it has a pretty snug fit but does give enough room you can rotate the LNB housing where the Coaxes attach around slightly.

I got it because I thought I was going to get Directv but I never did, I already had Analog BUD at that time and since then i've had 4DTV and have been fairly happy with it.

I've been thinking about cutting the ring in two places around the Directv LNB and then put in a Dish LNB and super glue the ring back together.

I assumed if I twisted the head of the LNB and broke the seal on the LNB that I would damage or destroy it and if so that wouldn't work for installing a Dish LNB either, that I would have to use a band saw and cut the ring in two places. Mine seems to be made out of cast aluminum.

So what i'm wondering is if its ok to remove the receiving head from the LNB's main body and if they are threaded or how to do it if its possible.

[risk]

ok thanks bow. . .

as for the 'white' piece on the lnb that should just snap off with little force, i took two pics of one i pulled part today. is this how yours would come off or you think it NEEDS to be cut?

its an old DTV lnb but it seems to be much longer than what im seein in the pics, makes me wonder if this is a 'special' lnb they use?

[Bowhunters]

I don't have any pics but the LNB on mine is very similar to yours and on your pic #1 the narrow throat where you see a small redish dot is where it passes through a hole on the scaler ring and there is just enough room in the hole to rotate the LNB slightly, thats why I didn't see any way to take it apart and I felt I would have to cut the ring to get it out.

Beats me how they put it together at the factory unless they put the preassembled LNB in a mold that forms the scaler ring and then pour in the melted aluminum, somehow they protect the plastic of the LNB by blowing in cold air or something.

[risk]

ok guys, this is piece of the email i got from skyvision. . .

"The item that you request is now actually a modified Chaparral CoRotor II C/Ku feedhorn, with a 2-output DBS LNBF installed in the scalar ring.
It is sold as is---with no provision for further modification. The LNBF is first carefully cut between the main body and the horn, to allow placement through the hole drilled in the Corotor's scalar ring, and then securely put back together. While you could take this apart on your own, you would have to devise a method of modifying whatever LNBF that you might wish to put in its place."

[Bowhunters]

Well thats cool, that narrow neck section must be a hollow tube then.

They probably cut it in two and then super glued it back together in the ring, I always figured LNB's had nitrogen gas in them to help keep them from getting condensation inside like binoculars or rifle scopes.

I don't remember seeing any marks that indicated it was ever cut on mine.

[Terryl]

I wouldn’t remove the protective plastic cover from the Ku band LNB horn and leave it off if I where you guys.

It serves 3 purposes, one is to keep the bugs that like to build nests in places like that out, (mud wasps, hornets, ect) two it keeps the solar radiation from frying the LNB when the sun gets behind the satellite, (happens twice a year) and three it keeps the water out and off the LNB antennas.

[Terryl]

Well thats cool, that narrow neck section must be a hollow tube then.

They probably cut it in two and then super glued it back together in the ring, I always figured LNB's had nitrogen gas in them to help keep them from getting condensation inside like binoculars or rifle scopes.

I don't remember seeing any marks that indicated it was ever cut on mine.

They did a very long time ago, but it was too costly, they are just sealed up real good.

[Costactc]

That scalar looks cool with the extra lnbf. You'd have the best of both worlds your wideband feed for circular c and an lnbf. You'll probably have to nudge the dish either east or west on each sat to compensate.

[risk]

That scalar looks cool with the extra lnbf. You'd have the best of both worlds your wideband feed for circular c and an lnbf. You'll probably have to nudge the dish either east or west on each sat to compensate.

o man costa thats what im sayin. . .it would be the happiest bud in the world lol lol both linear and circular c and ku band. . .i dont mind bumpin the dish a bit at all. . .

[risk]

I wouldn’t remove the protective plastic cover from the Ku band LNB horn and leave it off if I where you guys.

It serves 3 purposes, one is to keep the bugs that like to build nests in places like that out, (mud wasps, hornets, ect) two it keeps the solar radiation from frying the LNB when the sun gets behind the satellite, (happens twice a year) and three it keeps the water out and off the LNB antennas.

yea i understand what you mean, but it would hav only been off for a little bit. . .im gotta try it with an old scalar and a 5 dollar lnb if you know what i mean lol lol

[Terryl]

OK as long as you put it back on. (in some way shape or form)

I had a very expensive junk pile at work filled with LNB's LNBC's and LNBF's also “C” “X” and “Ku” band wave guides that were damaged due to no protection from the weather, some of the older wave guides and LNB’s were silver plated inside and had to have a membrane to keep the Argon gas inside and the water out, but those were the very old type.

[Costactc]

Totally in agreement with Terry, no way should you ever leave an lnb without its cap. Of course unlees your looking to have it replaced.

[Gizz-Moes]

I used one of these DBS scaler rings a few years back, thought I could eliminate the small dish’s.
It sounded good, C-band, Ku linear, and Ku circular all on the same 10' BUD.

It did work, but not as planed.
It did pull in all the Ku circular satellites, but it was off a few degrees from the C-band & Ku linear settings. Once peaked I just added the new setting in the 922 receiver.

The other problem was the constant moving of the dish from one channel to another, no problem for me but the wife hated this.

In the end the (2) Dish 500/DP Twin’s went back up, but only for the wife’s conveyance.

I will say once peaked the sat quality was maxed, this never happened on the small dish.
Also rain fade was nearly non excitant, unlike the small dish.

Before the purchase I did try mounting a DBS LNBF to the support arm of the BUD with very little success.
I also tried modifying a scaler ring by adding my own DBS LNBF. It worked, but not as well as the pre-modified ring I purchased.

The purchased ring was one casting. The DBS throat was cast at a slight angle to hit the center focal point along with the C/Ku linear LNB’s.
This is probably the main reason my home made didn’t work as well.

I would say give it a try, after all this hobby is all about testing.

Good Luck,
Gizz

[risk]

thanks gizz, i will surely give it a go. . .i have a 6' for the circular c band for the boss lady already, i just wanted to know about this setup ansd how well it works. . .i guess i could just compare the two. . .6' and 12' and see who comes out on top