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No solution as yet other than to use portable laptop on battery.
The problem has been fixed by one user.
https://www.eevblog.com/forum/rf-microw ... to-sdr/25/
Look about 2/3 down the page. You can search the page for his user name "Taucher" to take you to the relevant post.
Hope this helps. I'll be modding mine as soon as the warranty is out as I have same problem, but it is not too intrusive at the minute as I seldom disconnect the Tx port while it is in use.
I'll try it on one of mine and see if it behaves any better.
Hello to all PlutoSDR owners,
I have replaced internal oscillator in Pluto. I have used ASTX-13-C-40.000MHz-I05-T. Pluto is more stable then before and I am able to make SSB qso now without drifting. No need GPS stabilisation I think.
I have had no experience with SMD removing from PCB, so change was little bit dramatical, but I have done it and Pluto works.
Now is Pluto fully usable for QO-100.
Thanks to Mathias DL9BQ for usable informations - look at his qrz.com pages.
Have a nice day de Pavel OK1PHU
Mouser UK have them in abundance
https://www.f1te.org/index.php/realisat ... dalm-pluto
Don't like Mousers £12 delivery charge though!!