Well...you know how sometimes in the course of troubleshooting a problem either you inadvertently fix it, or realize that somehow it wasn't broken to begin with? I'm now getting TX audio as expected.?
I really have no idea what I did to change things. But I appreciate all the help. I was seriously wondering what the problem could be because on all my testing, the results I was seeing were consistent with what Evan is seeing. @Reed, thanks much for that diagram--I'm going to use that for future troubleshooting reference. @Raj, I didn't observe the same voltage drop that you did when the element was connected, but my observations do line up with @Evan's.?
I have not yet comprehensively tested (e.g. by transmitting on both USB and LSB on all bands) but will put the radio through its paces over the coming days and weeks.
My rig is a relatively stock v5, but I did make a couple mods.
- Added the Nextion 2.4 screen
- Fitted an onboard battery (a Bioenno 3.5Ah LiFePo) and used the DC port that the rig came with to charge the Bioenno.
- Inside the rig the Bioenno connects to the board via a PowerPole, so I can also pop the top off and connect an external source via PowerPole if I want (though I have not made a mod to the case to allow me to close up the case. Can just put a notch in one of the panels to admit the external source's cable, I suppose.
- The case itself is homebrewed from some copper sheet I had lying around. It doesn't look like the beautifully finished rigs I've seen in the build pics--it's kind of steampunk-ish in a way.
- There's room in the case for a speaker but I haven't put one in yet nor cut out holes for it.
Thanks again all!
73,
Tim
