Spectrum Analyser Frequency

[john_robot]

Hi, My Spectrum Analyser says Tuning range 950 to 2150 MHz
So if I want to tune in to a Transponder 12718 H then what Spectrum frequency I should tune ?

 

[Cham]

Depends on your LNB/LNBF local oscillator. If it's 11250MHz, then 12718 minus 11250 = 1468MHz. That is where the center of the transponder should be.

 

[john_robot]

Thank you Cham.

So if local oscillator frequency is 5150 MHz and TP 3660 V then pls tell me how do i calculate that ?
also local oscillator frequency 10750 MHz and the TP 1170 H ?

 

[Cardinal 177a]

The difference between the frequencies will be center to tune to.

On C band, the lower transponders will be on the right side.

On Ku band, the lower transponders will be on the left side.

 

[KE4EST]

5150 - 3660 = 1490MHz
11700 - 10750 = 950MHz