how to configure Circular Polarity on C Band LNB

[jermaine]

Hi,

Iam from Portugal, and i want to get the sat NSS806 on 40,5 W circular polarity
This sat has only channels in C band, but in Europe most os sats are in KU band. So, i need a litle help, to configure an C band Lnb for circular polarity.
I have not experience in working with C Band Lnb´s.

Thanks,

Best Regards,

Antonio

 

[gabshere]

most of the newer lnbf's sold today accept a di-electric plate and has a slot that it slides into on the feedhorn this will gain the circular polarity ( this di-electric plate is usually sold with the new lnbf)

hope this helps and welcome to the group.

 

[jermaine]

Thanks for your help. Wich lnb for C band you recommend, for a prime focus dish of 1,8 m.


Best Regards,

Antonio

 

[gabshere]

if you don't have a satellite dealer close to your location you might contact one of the sponsors above and inquire if they ship internationaly and if they have a c band lnbf that includes the di-electric insert.

Satellite AV has a lnbf ( if it has the insert)
Sadouns has a c/ku lnbf
DMSI you can check the bsc421

just check e-mail or phone before you order to verify if they ship internationaly and they have the insert .

 

[dem0nlord]

Is this dish going to be fixed on just that one sat, or motorized? If it's going to be motorized, I'd use something like a Chaparral wideband feed, since this will do both circular and linear C band without you having to go out to the dish and remove/install the dielectric plate every time you want to switch between the 2. I use one here and am getting good performance on both circular and linear. If it's just a fixed dish, then yes a cheapie C band LNBF with a dielectric plate is probably fine.