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w1hkj / fldigi

Amateur Radio digital modem application [SF mirror]
http://www.w1hkj.com
GNU General Public License v3.0
108 stars 27 forks source link

Using fldigi on a chromebook in crostini #14

Open cminyard opened 4 years ago

cminyard commented 4 years ago

Google has added the ability to run Linux programs on ChromeOS with something called crostini, and I'm trying to get it working. I am able to transmit ok (if I force it to override squelch), but the received signal strength indicators are pegged at maximum.

The funny thing is the waterfall looks fine. I can see an incoming signal like it should be, but it's not read by fldigi.

What could cause the input signal strength to be pegged but the actual signal data to look normal? It's probably a bug in crostini, but what can I report in a bug to them to tell them what is wrong?

I've asked this on the mailing list, too, not sure the best place to report it.

cminyard commented 4 years ago

I looked through the sources a bit, and noticed that different modems would set the levels. So I tried some different ones, and it looks like at least mt63-2000l and CW work ok. The one I'm having the trouble with is fsq-4.5. Others have issues, too (WWV, IFKP 0.5) but most seem to work ok. So maybe the bug is in fldigi? I played with the different RX Parameters in the fsq-4.5 config, but no help.