Coolsat 5000 LNB setup question

[Inno]

Just wondering what the following stands for. LNB Type : Select your LNB Type.(Single / Universal / OCS) from the menu of a Coolsat 5000. I understand Single and Universal but what does OCS stand for?
The reason I ask is because I was blind scanning with it the other night and it seemed to do a double scan. With G-10R I switched from single to universal and that seemed to take care of it. The LNB I am using is a Star Choice single stacked LNB. For AMC3 I'm using a single non-stacked LNB (also from Star Choice) and with the "single" setting it seems to be double scanning as well ie: I get all channels twice.

Also on G-13 C band although I think I have that problem worked out.

 

[Mr Tony]

OCS-one cable solution

that is what you should use for a stacked LNB...I knwo when I hooked up my C-band stacked LNB I used OCS and it worked fine

dont know why when you use a single you get duplicate channels. I dont on my 5000 and I've used a Starchoice non stacked (ie: the quad LNB)

 

[Inno]

I'm not sure either. Seems that it happened on my Pansat when I had the wrong LNB setting selected but the Coolsat only has the 3 to choose from.
Strange, I may have to play with it a bit more.

 

[Mr Tony]

are you sure the non stacked LNB is really non-stacked?

 

[Inno]

I'm about 95% sure........it's one of the first Star Choice LNBs that were available. Large rectangular on the outside.......I should have a picture of it here somewhere......nope, I don't but there's another site member who has the exact same one on his dish, SatelliteGuys Photo Gallery - 31" Star Choice Dish & LNB\'s - Powered by PhotoPost

 

[Tron]

If you scan using a stacked LNBF, you need to specify only one polarity, vertical, to prevent duplicate channels. The reason you get duplicate channels is that these LNBFs do not switch polarities, they send down both at the same time. The receiver sends 13v (vertical), assuming the LNBF has switched to vertical. It then re-scans, sending 18v (horizontal) for the horizontal transponders. Only problem is that the same transponders are coming down the cable (both vertical and horizontal) regardless of what voltage is being sent to the LNBF. So what happens is that you get two scans.

 

[Inno]

Ah! Thank you for the explanation. That's why with my Pansat it doesn't happen that way, it has a setting for stacked LNB.
That's good to know. I've shelved the Coolsat for now (although I really like a lot of the features on it) and will continue to use my Pansat for my main FTA use. I'll use the Coolsat for dragging out to the dish farm and tweaking things and eventually in the garage/workshop when I get a FTA dish set up out there.

So does that mean with a stacked LNB I could connect two receivers simultaneously? If so, would it be like Star Choice and require only a high frequency splitter?

 

[SatPhreak]

So does that mean with a stacked LNB I could connect two receivers simultaneously? If so, would it be like Star Choice and require only a high frequency splitter?

Yes. Some Starchoice systems don't work like that, only the ones with a stacked lnb. The ones with the Quad lnb need a seperate line from lnb to each reciever.

 

[Mr Tony]

So does that mean with a stacked LNB I could connect two receivers simultaneously?

I run 4 boxes off my stacked C-Band LNB with one 4 way sat splitter

 

[Inno]

How about through a disecq switch? As in the output from a diseqc split to two receivers I'm guessing it won't work that way.......I'd have to have a separate diseqc for each receiver.....and stacked lnbs on each disecq input.......I think. I only have the one stacked LNB currently so it's not an issue but I like the thought of being able to connect multiple receivers to one dish, that could work out well for me. I'll just have to get some more stacked LNBs.

 

[SatPhreak]

You will need 1 diseqc switch for each reciever. You can use a splitter from the stacked lnb and run to each diseqc switch. The other inputs into the diseqc don't need to stacked either. The reciever can run stacked on some inputs and standard on some, just set each sat to the correct lnb type and diseqc port.