FSS Stacked LNB Superdish type 2

[Anole]

105°

Picture below of SuperDish type 1 for the 105° market (long obsolete), with the metal dish.
Note it had a small round feedhorn.
They presumably operate on circular or linear, depending on which way you rotate the fingers.
The feed twists 45° and clicks into place.

Apparently there were two kinds.
One had nubs, the other fingers that stick out.

(not my pictures) -

 

[Anole]

By the way I plan to use it in a Asure Shine 5.5' diam dish.
Should I replace the feedhorn for a C-120 round one ?
In the third picture you will notice the di-electric inside the feedhorn.

Prime feed 5½ foot dish? Your SuperDish feedhorn has the wrong F/D ratio, so I'd use the Invacom AF-120

Offset feed 5½ foot dish? Your feedhorn should be round to work best.
But, but I'd give a try with the one off the SuperDish.

I think the dielectric insert makes it receive the circular signals.
So, I suggest you would have to remove it to get linear.

This is some old hardware you've got, and I've not seen a lot of info on it.
The DishNetwork forum here might have an installer with a good memory, if our answers are not adequate.

 

[redcentinela]

Yes, it is old technology but it is in new condition. Never used outdoors or ever mounted. I bought the whole assembly with the plastic covers also by internet for 16 dollars incuiding shipping. I just want to give it a try, specially the FSS lnb. Only one thing, By the way in order to test it, let's say I take the dielectric plastic out, I just select a Vertical TP, set the LOF frequency to 10750 and set the lnb type to OCS-DP? Is that enough. Thanks.

 

[Mr Tony]

actually just set it to 10750 and single/standard (not ocs)

should work fine then

 

[redcentinela]

Iceberg, did you find out about the dielectric, should it be there? I was testing this lnb by the time you posted. It had very low reception. I took the dielectric out with the same results. Do the lenght of the feedhorn is responsible of the low reception? Also if I set it to normal, how come it can work with a DP-34 switch. Just wondering.

 

[Mr Tony]

vertical polarity on a bandstacked LNB is the same (10750)...its the horizontal TP"s that get "stacked" above the verticals

on a bandstacked LNB the vertical TP's are between 11700-12200
horizontal are between 12400-12900

There was a thread a while back to figure out the H frequency take what it "normally" would be and subtract from 24600. I had a receiver that wouldnt take an "oddball" LNB LO frequency. So a 11700 H TP is 12900 and 12200 would be 12400.

 

[redcentinela]

I already have the tp's in the CW800 scanned from the bird I want to receive. Most of them are Horizontal. Should be enough to change H to V or should I rescan again?

 

[Mr Tony]

If you have blind scan you can do a couple options
-scan 11700-12900 (if the receiver will let you...some wont)
-change LNB LO to 13850 and reblind scan vertical only. The frequencies will be off but it will scan all the TP's in

 

[redcentinela]

Thanks, I'll do it that way. Another last question before getting up to the roof, Should I leave the dielectric or should I take it out?

 

[Mr Tony]

take it out...that is normally for circular polarity

 

[redcentinela]

Thanks, I'll do it and will let you know the results.