Hi Steve --
On 9/19/2015 6:03 PM, Steven Franke wrote:
> I have just now realized that the sync threshold is higher for “off
> frequency” signals. Since I had set Rx freq to 3000, the results
> reported below were obtained using the higher wideband sync threshold.
> That probably explains the lowe
I will assume that you are talking about JTMSK. You should not be
surprised to see an occasional false decode. Decoded messages are
"protected" by a 15-bit CRC, so the probability of a false decode
accidentally passing the CRC test is about 1/32768.
-- Joe, K1JT
On 9/19/2015 5:46 PM,
I have just now realized that the sync threshold is higher for “off frequency”
signals. Since I had set Rx freq to 3000, the results reported below were
obtained using the higher wideband sync threshold. That probably explains the
lower than expected yield. I’m re-running with Rx frequency set e
Thanks Joe! This has been a fun project, and I’m learning a lot from it.
I used your SimJT program to generate 1000 JT65A files at -24 dB SNR. Here’s
what I get:
kvasd (with Rx frequency set to 3000, so this should be the low-effort
setting): 106 decodes out of 1000 (10.6%)
sfrsd 5000 trials:
Hi Steve,
I've looked again at the innards of sfrsd. I'm *much* impressed by what
you have done.
Soon, it may be time to look again at the upstream decisions made in the
JT65 decoding chain -- decisions that determine what symbol vectors are
passed on to the actual decoder. Among other thing
On 09/19/2015 02:45 AM, Philip Pemberton wrote:
Hi Philip,
> I'm running WSJT-X (v1.5.0) on an Ubuntu 15.04 x86_64 system, using the
> packages on the WSJT-X website. The sound device is a USB sound card.
You are probably running pulseaudio.
> Every time I start WSJT-X, the receive master volum
