sl3s + 21v pi + frequency sweep from 150mhz to 2150mhz

Eh, c'mon , enough advertising Sonora equipment, I posted here a lot of my spectrograms, Ku and Ka...

 

And "eh, c'mon" as well in return ....

I'm not advertising for Sonora's equipment or anyone else's.

I was only referring to the Aligent spectrum images on pages 3-6 of the document. And why we're not seeing something similar to those posted by the OP is all.

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ok, I'll look at my old storage to find my spectrums ...

 

That second pic looks really good - exactly what you'd expect to see for the 16 odd transponders from 101, though it looks shifted a bit right (the first transponder should have a center frequency of 989 MHz)

 

Hooray! We got first successful scan !

Lets see if you can control your setup in full - try 18VDC and scan Ku EVEN tpns

 

Yeah OK ...

Good photo of the down-converted 950-1450 MHz Ku band ...

I'm just still looking for an identifiable display from the OP's SDR of the usual three "haystacks" centered around 250-750 MHz (Ka-lo), 950-1450 MHz (Ku), and 1650-2150 MHz (Ka-hi). As in those Agilent diagrams ....

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He's blocking the 99/103 feedhorns with foil, not sure why.

 

Right, what I expected - some tpns are low as it's a spotbeams

 

Now, lets see some Ka... 250+ MHz and 1650+ MHz

 

do nothing - do not cover, do not send/change voltage/tones
- just connect your splitter to one input of the switch (keep all four coax connected to LNBF) and
- do scan first range 250-750, second 1650-2150
- repeat four times for each different input of the switch
- please post 8 graphs here

 

better make separate scans for each 500 MHz range - easy to compare and distinguish

Ka-lo could be poor for you if there is just one or two SB tpn

 

79° tilt for that zip code according to dishpointer.com.

And I must admit that I still can't really make head-nor-tails of these spectural displays beyond 101w the OP posted in isolation.

The Ka L-band "haystacks" positioned to either side of the Ku one aren't showing up well and recognizable at all.

Strange, unless the dish is still misaligned or something ...

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It is quite possible his dish is misaligned - much easier to get something on 101 than to fine tune it enough to bring in a strong signal on 99 & 103.