Post
by G4FKK » Mon Aug 24, 2020 11:27 am
Hi Dave,
I've been a bit out of the Langstone/Portsdown loop lately due to other projects, so was interested to see the latest updates for both projects. I've built a new SD card and installed Langstone followed by Portsdown 4. Everything looks promising and Langstone appears to work as before. Portsdown was working ok when I was running the old Raspian OS and Portsdown A27.
Portsdown 4 appears to have the following issues and I apologise in advance if I've missed another posting which addresses some or all of them...
1) When using the Lime Mini using the Pi Cam as source (146.5 MHz, DVB-S, H264, 333KS, 7/8 FEC)...
When the TX fires up, after the new 12" delay, the PTT operates but the picture on the monitor freezes and no RF is produced. In fact the monitor does update, once, about 12" later and then freezes.
There's a button I don't recall seeing before - LimeRFE - I've switched it between Disabled and Enabled but it doesn't change the above and I don't know what it's for.
The Test Report is reporting TX_2 -> LNA_W Test FAILED. I've never had a fail before.
Power off/on reboot doesn't help.
2) When using the Pluto as 'Output to' Portsdown appears to go to TX but the PTT doesn't fire.
Maybe I should have installed PD4 first?
Sorry if I've missed something obvious and happy to run any tests/reports that may be helpful.
73, Martin - G4FKK