Maximum symbolrates for different SDR

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lowiess
Posts: 1
Joined: Thu Nov 07, 2019 3:22 pm

Maximum symbolrates for different SDR

Post by lowiess » Fri Nov 08, 2019 8:54 am

Hello

I have been playing around with the Adalm pluto and a minitiouner at my desk to see what is the maximumsymbol rate i could transmit and receive
I can not reach symbol rates above 500ks am I doing something wrong? I see pleople reaching higher symbolrates of 1000 and 2000
If put I DATV express on 1000ks I get an intermittent transmission and the signal switching on and off

I have connected the ADALM pluto and mintiouner to my brand new I7 8thGen laptop with 16 Gb(should be fast enough)

Who should i do to reach the 2000ks ?

Cheers Frans PE0F

g4eml
Posts: 43
Joined: Thu Apr 26, 2018 9:36 am

Re: Maximum symbolrates for different SDR

Post by g4eml » Fri Nov 08, 2019 10:38 am

Both Minitioune and DATV Express need a lot of processor time. I find that running both on the same computer doesn’t work well, especially if you are also running Vmix or OBS. Using separate computers for Tx and RX will give you a better chance of higher SRs.

Colin G4EML

PE1BR
Posts: 7
Joined: Thu Jul 07, 2016 5:37 am

Re: Maximum symbolrates for different SDR

Post by PE1BR » Sat Nov 09, 2019 8:39 pm

I've had the same problem with the pluto and Datv express.
Try going back to version 1.25lp12 for the Datv express software.

I'm running Datv express minitiouner and vmix at 2.5MS on my i5.
Not the most stable but it works for me for now.
Will try the F5OEO software in the future so I can do without DATV express and use OBS on my second (linux) machine.

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