Makes sense now...
AL, K0VM
On 11/25/2018 1:16 PM, Steven Franke wrote:
Al,
This is expected behavior. Since RC4 does not decode 75 bit messages,
it cannot subtract them. Thus, RC3 will often be able to decode a
77bit messages on the second or third decoding pass, after it has
removed interference from 75bit messages. On the other hand, RC4 will
not remove the interference and hence may fail to decode. This will go
away once all users switch to using only 77bit messages.
Steve k9an
On Nov 25, 2018, at 1:08 PM, Al <k...@arrl.net
<mailto:k...@arrl.net>> wrote:
I have been running both RC3 & RC4 on the same PC decoding the same
digital audio stream.
At time I have noted that I get decode for 77bit station in RC3 that
do not appear in RC4.
I can reproduce this playing back the same wav files in rc3 & RC4.
RC3 decode....
<RC3.jpg>
RC4 decode ....
<RC4.jpg>
Also noted where decode was present in both, that there is a
difference in s/n reported. ( maybe just work in progress )
wav & all.txt files available on request..
AL, K0VM
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