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today I tried to send with Pluto DVB-T QPSK FEC 2/3 with version 1.19.
I see a signal in the spectrum that looks very much like DVB-T.
But no constellation image can be seen.
With my other programs ( DATV-Express ) or devices ( PD4 ) together with Pluto
I can see my 4 points for QPSK very well.
Has anyone really gotten a DVB-T signal with this program?
73, Frank ( DDØCW ).
Incidentally, the codec and mode are somewhat decoupled, DATV easy is sending a transport stream, the Pluto is doing the DVB-T part.
with the software from F1EJP on TX side I have seen a kind of rhombus but not very clear, at least locally.
With my GNU Radio as RX I see a very clear square for QPSK ( 4 dots ) , or 16 for 16APSK and 64 for 64 APSK
when using DATV-Express with PLUTO or also PD4 with PLUTO.
You cannot see the individual approximately 1700 carriers.
If you are interested in the GNU radio solution for RTL stick, I have all necessary
things on my Google drop box.
Vy 73 de Frank ( DDØCW )
my tests were all in 2K mode, what means 1705 carriers.
And also all with PLUTO, DATV-Express with PLUTO and PD4 with PLUTO.
The SR were from 150K up to 333K.
What was interesting today, with GNU Radio on frequencies slightly off the right frequency
I get the same constellation picture like I get when using the EASY DATV program ( Rhombus ).
This was with my own programs ( DATV Express & PD4 with PLUTO ).
But it is not possible to get the right picture ( 4 dots square ) by changing the frequency of the
GNU RX when transmitting with the EASY DATV.
Also other OMs got the same results ( Poll, Robert, Reinhard ), there must be an issue with modulator
used by F1EJP.
Vy 73 de Frank.