Hi Stefan,
again thanks for testing this system !
I did some changes and now log is arranged in lifo style. I think is
better for browsing now.
About the different list numbers on different channels, it's seem a
good idea. I will try to modify the script for the third channel and
for the vari-list.
This is the actual sequence of the script :
- exactly at XX.17, after transmission period, ebnaut program
starts (parameters for RX1) and it ends at XX.31 (about). This time
depends from my slow pc.
- after that DETECTED.TXT file is updated and uploaded on my ftp
site
- than , exactly at XX.37 ebnaut program starts again (parameters
for RX2) and it ends at XX.46 (about).
- after that DETECTED.TXT file is updated again and uploaded on my
ftp site
There is room for a third decoding process (even at same
list=20000) before that the script loops again at XX.00 hour.
...stay tuned .
73, Domenic iz7slz
BTW this is a very
On 7/5/2017 11:49, DK7FC wrote:
Hi all,
I'm sorry for the many emails today. But i have another idea for
Domenico:
You could run a 3rd 'channel', e.g. 137.485 kHz (still oriented on
the
current frequency section) and indicate/define this channel (3) as
a
'local' channel, whereas the other channels are indicated as
'medium'
(2) and 'DX' (1).
The difference in the settings in these channels (apart from the
frequency of course) is the list size!
Local stations or strong stations like me will decode almost every
time
at rank 0, so you can use a very small list length for that
channel,
e.g. 50.
A weak/distant station or in times of high QRN one (e.g. VO1NA)
would
prefer to use one of the other channels, just in case that the
rank
will be much worse.
You can see that most of the 'false' decodes happen at list
lengths of
> 5000. So with the use of different list lengths you can avoid
several false decodes, CPU usage and false entries in the log
file.
For the 'medium' channel you could use a list length of 1000 and
for DX
maybe 20000.
Just an idea :-)
Using two frequencies has already improved the situation:
-----------------------------------------
2017-07-05_09:59:30 start time + 30 s on 137.490 kHz
found rank 0 ber 8.0645e-02 Eb/N0 10.6 M -9.849675903e+02 [GM ALL IW4DXW K] ps [ 1 180 180 180 180]
2017-07-05_10:59:30 start time + 30 s on 137.495 kHz
found rank 0 ber 2.3185e-01 Eb/N0 4.9 M -5.360782471e+02 [73 FROM DL TO I] ps [ 0 0 0 0 0]
--------------------------------------------------------
In a few minutes i will try to run less antenna current to come
closer
to the limit :-)
Thanks for the great service :-)
73, Stefan
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