20:30 best result at T offset +0.6
found rank 20883: VO1NA ps [ 28 -30 -30 0 0]
re-encode 175/512 ber 3.42e-01 Es/N0=-10.8 Eb/N0=1.5
Looks like the clock is no longer drifting.
I'm having to use long lists. Not good with short messages,
the outer code isn't strong enough and there are lots of
false decodes. EbNaut would fail if Joe was sending a
random payload because we wouldn't know which was correct.
The operator here is adding a 3rd layer to the FEC.
I might alter the coding on short messages. Instead of
extending the CRC (which would invalidate previously recorded
signals) I would restrict the source coding to say A-Z 0-9 and
maybe /. Enough for a callsiga or a small cat. That would
add 0.5 bits per char of strength to the outer code,
21:00 at offset T=+1.0
found rank 1360: VO1NA ps [ 33 120 120 150 150]
re-encode 176/512 ber 3.44e-01 Es/N0=-10.9 Eb/N0=1.4
Andy wrote:
> How can I make a copy of the text in the EbNaut window ?
> Highlight and copy (Windows) doesn't work
I don't know how to do the copy/paste stuff in Windows.
You're probably better off looking in the log file, this
will list all the decodes. A good but false decode will
over-write the screen display of a not-so-good but correct
decode, but the original is in the log.
--
Paul Nicholson
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