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Working OK here in York England.
On 15/11/2017 15:20, Martin via
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OK I've spent some time today trying to optimise my Airspy server
config to best deal with the poor uplink speed I've got at my
I setup a separate 3G WiFi hotspot (up a suitable tree) so that I
could connect to my server over the internet and compare different
I found that I had to limit the V3 dongle sample rate to 2048000
in order to get anything like a reliable connection.
other key config lines are
force_8bit = 1 (obvious)
fft_fps = 10 (it was jerky anyway and this seemed to be the best
compromise setting between the local network and the 3G
buffer_size_ms = 100 (This was marginally better than a setting of
50, but increasing it still further didn't seem to make much
buffer_count = 30 (I tried bigger values but this seems to be OK.
50 also worked OK)
I don't understand why it's still choppy. I have loaded up both my
KiWi SDR's and there is still some bandwidth available, so I
suspect it's down to internet latency and clock jitter (plus all
the usual internet issues).
Are there any QoS diagnostics that could be incorporated into the
server / client to help diagnose such problems ?
Can folks try my server again to see if it's any better now ?
Martin - G8JNJ