Eutelsat 113W C band TP Spectral Analysis Using Dongle & SDR#

[spongella]

Pointed my 1m dish at 113W, using Titanium C band LNB with conical scalar ring, got a few stations such as RTV Hidalgo, GPO Imagen, UdeGTV, Puebla TV, and two baseball feeds from Mexico.

Anyway, connected the IF output of the 8Dtek to an EZ Cap dongle (range 25 - 1700 MHz), and looked at a few TP's.

First is RTV Hidalgo, IF 1330 MHz, Vertical polarization, 26% signal quality. Appears to be about 2 MHz wide.

Next is GPO Imagen, IF 1297 MHz, Vertical polarization, 40% signal quality, appears to be about 2 MHz wide.

Are most channels about 2 MHz wide?

 

[Titanium]

SCPC audio and data services could be less than 100KHz. Most motion video services are at least 2MHz. HD is often 20MHz or more.

 

[spongella]

Thanks Titanium. Wow 20 MHz for HD sounds like a lot band space. 20 MHz would take up almost the whole HF band when you think of it. But up in that range (GHz) 20 Gigs is probably not a lot relatively speaking.