OpenGD77

That makes me very sad. It seems to me like its a bug with the kernel's cdc_acm module. [ 5.711126] cdc_acm 1-1.3:1.0: ttyACM0: USB ACM device [ 5.716135] usbcore: registered new interface driver cdc_acm [ 5.716146] cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters . . [ 51...

For a followup, here's what error I get when it locks... [ 646.634786] usb 1-1.3: USB disconnect, device number 3 [ 646.635374] cdc_acm 1-1.3:1.0: failed to set dtr/rts [ 647.390111] usb 1-1.3: new full-speed USB device number 4 using xhci_hcd [ 647.536626] usb 1-1.3: New USB device found, idVendor=...

This seems to be the same "Fake TX Hang" that has a 40+ page thread. I turned the power way down, I set TXLevel and DMRTXLevel to 5 each, and RFLevel to 1! I confirmed the RD-5R said 50mW on the Hotspot screen. I used my 10' antenna cable to move the stubby antenna as far as possible. On my RTL-SDR ...

I tried a lot of things to get the RD-5R hotspot mode working, ultimately I put a 10 foot extension cable between the antenna and the radio, used a tiny rubber duck antenna, and used a vertical drop on the USB programming cable. I also set the RD-5R to 50mW. No matter what I tried. Pi-Star would han...