Txing audio problem just on 15 M band

[VE2XK-Michel]

Well after that PiPSDR drama to update without results (in the moment) i find something weird again .
Since i get my G2 Ultra or 2 1/2 week ago i was almost just on 80 , 40 , 20 , 17 , 10 and on 6M band .
2 days ago i want to try qso with a friend on 15 M because we had better conditions .
Apparently on 15 m my G2 Ultra sounding completly weird untill nobody or my friend can't understand me at all . Ouch !!!!
Well after i have connect my G2 ULTRA on my 5 KW Dummy load i find out it was just on 15 M band i have this problem.
So better don't tell me it's is RF feedback . NO WAY !!!!!
Other thing is that untill 27 watts my G2 ULTRA sound good then start that weird audio like a Aurora sound voice of 6M .
I have listen on my Icom Pro III (for luck i don't have sell it ) to reproduce the problem and it was just on 15 M .
The problem was the same with Thetis or PiHPSDR .
I had output , no problem , had a good audio by montoring on Thetis BUT the transmitting audio was complety bad just on 15 M.
So i suspect there is a serious problem somewhere . First reliability problem ??? SDCARD and Factory setting bad ?
I'm very surprise to find this problem and i hope to NOT have to send my G2 ULTRA back to the US. Is very disapointing for me to find this reliability problem for over a 4300 USD brandnew radio .
Bad start !!! Old Firmware and old PiPSDR version from factory and now weird sounding audio just on 15 M that nobody can't understand ?
Michel VE2XK

Apparently a déjàvue on this forum https://community.apache-labs.com/viewtopic.php?f=48&t=5177

[grolaf]

Same issue on my G2, I just updated the old topic with my findings.

[Svante]

Hello Guys. Svante sm6usu here. The forum site did not work this afternoon un till now. I wrote to Michel this morning and when going home today I get next msg from forum. Ok No I sent my G2 back to England and it seems that they do not know where to send it for repair. They told me maybe to USA. That was in end of November. The dealer says that they will taking care of it. Ok we will see how that goes. I hope for the best.
Very best Svante sm6usu