Help with setting the LNB type

[newtoFTA]

Hi everyone,

Could anyone please tell me what i need to set for the LNB type in my receiver if i use the Invacom C/L LNBF QPH031. Thank you.

[briand]

That LNBF is a "quad", and has four connectors on it -- two for circular polarization and two for linear polarization.

I'll assume you're using a 2- or 4-port DiSEqC switch to access the specific portions of that LNBF.

In your receiver, you'll need to specify not only the proper frequency for the LNB, but also the correct DiSEqC port that routes to the specific (C or L) portion of the Invacom. I connected the odd-numbered ports to the circular connectors, and the even-numbered ports to the linear... how you connect them doesn't really matter, it'll work in any configuration -- but you'll need to remember which is which, so that you can specify the correct one in the receiver.

Anyway, in the antenna setup for a given satellite, you'd specify the proper LO (local oscillator) frequency (10750 for linear, or 11250 for circular polarization) and the proper DiSEqC port (specific to how you wired the switch to the LNBF).

It may seem logical to pick 'universal' for this LNBF (because, after all, it picks up both circular and linear polarization satellites), but that is not correct. Specify 10750 for any linear satellites, and 11250 for any circular satellites.

[Reinhold]

I did not know you had to input the switch port.I do not see any place for it in my lifetime ultra.The lifetime ultra brings up the right frequencies automatically.
Reinhold.

[newtoFTA]

hi Brian,
Thank you for you help. I will use 2 S-SM21H 2-way 22KHz swicth. So in my receiver, i need to choose 4 for the DiSEqC field?Is that correct?

My receiver is Fortec Star Platinum. It seem not let me put in the letter R or L when i try to enter a new TP freq? Be specific, i want to get GOV TV on Echo 8 (110W).

http://www.lyngsat.com/echo8.html

The TP freq i need to put in is 12341-R-20000, but how can i key in letter R ?Anyone else knows this?Thank you.

[briand]

If you're using a 22khz switch, then you'd leave the DiSEqC switch setting blank, and specify the appropriate switch setting for the 22khz switch.

The Fortec receivers do not indicate R & L for circular polarization... it only shows H & V, regardless of polarization type. Observation in my Fortec Lifetime Classic receiver indicates that it shows 'V' for 'R' and 'H' for 'L'.