Showing posts with label ebnaut. Show all posts
Showing posts with label ebnaut. Show all posts

13 Jan 2018

New EbNaut decoder for VLF amateur DX

Paul Nicholson, a very good UK VLF SWL, has created some new software:

"Updated EbNaut decoder for Windows, now at version 0.8

 http://abelian.org/ebnaut/software_ms.shtml

This version does 16K23A which is a useful polynomial
for short messages combined with a large CRC.

The Linux program is up to version 0.9 now.

 http://abelian.org/ebnaut/software_linux.shtml

The only significant change is the use of DSW re-balancing
of the list decoder stack.  This may reduce decode time
a little when using very large list lengths.  It is most
useful when measuring the distance spectrum of a polynomial
where a degenerate tree often develops.
--
Paul Nicholson"

22 Feb 2017

More EbNaut VLF testing

Stefan DK7FC is doing another EbNaut test tonight:

Hi all,

Hereby i'm announcing the next EbNaut attempt for a longer night transmission, starting in a few hours:
f = 8270.100000 Hz
Start time: 22.Feb.2017   18:00:00 UTC
Symbol period: 30 s
Characters: 8
CRC bits: 16
Coding 16K21A
Duration: 11h, 12m, 0s
Antenna current: 700 mA


73, Stefan