Spectrum Analyzers

[battenfan]

This is a screen dump off QSpectrumAnalyzer and my cheepo dongle sweeping a terrestrial antenna. It takes 10 seconds for this sweep as you can see but it's faster than others I've tried. I'll say this is quite useful. The 770 MHz is HD transmissions which I can't get a lock. Maybe I should get myself a 4G filter...

 

[huve]

Is that HD transmission DVB-T2? Cheap rtl-sdr stick are usually DVB-T sticks.

 

[margusten]

I got PCTV292e stick.
Supported by CrazyScan2
Working well, it can show T2 and HD picture.
About 800MHz is LTE800 mobile peak - usually highest at all. Hard to receive channels near on it.

 

[battenfan]

Is that HD transmission DVB-T2? Cheap rtl-sdr stick are usually DVB-T sticks.

Yes it's T2 but I'm not using the dongle to watch tv. I can use it to figure out how much more snr I would need. Normal tuners doesn't even give a hint it's a signal there.

 

[Channel Hopper]

I can use it to figure out how much more snr I would need.

Translation

How high up the roof the wife needs to go for reasonable reception.

Have you tried a longer prodding stick ?

 

[Tururu]

Si la señal ataca directamente, depende de los filtros que tenga, los USB-TDT (no tienen).
Si la señal se conecta a un amplificador, normalmente lo saturara, siendo necesario poner el filtro.
Todos los filtros LTE no son igual de buenos.

If the signal directly attacks depends on the filters you have, the USB-TDT (do not have).
If the signal is connected to an amplifier, normally saturate, being necessary to the filter.
All LTE filters are not as good.

Sin filtro/Unfiltered.

Con filtro/Filter C-59.

Con filtro malo, TRIAX modelo TBSO 260, de 12 a 20dB.
With bad filter, Triax model TBSO 260, 12 to 20dB.

Por Madrid (Torrespaña) tenenos el mux32 de pruebas en DVB-T2 [TDT2] en 4K (UHD), el resto es DVB-T, por donde emiten los canales en SD y en HD.
Madrid (Torrespaña) have the mux32 testing in DVB-T2 [TDT2] in 4K (UHD), the rest is DVB-T, where broadcast channels in SD and HD.