Re: LF: More EbNaut 137.777

[jcraig@mun.ca]

Thankyou again Markus, Paul and Andy,

TX on in 5 mins.  Wonder if there is a chance of a VK7 reception
if QRO and longer symbols.  Will try shorter symbols & QRO soon.

Joe VO1NA

On Mon, 30 Nov 2015, Markus Vester wrote:

> Hi Joe,
>  
> moderate during the night, but strong in the morning:
>  
> 2015 Nov 29/30
> start Eb/N0 
>  UT     dB  
>  
> 2000    nil
> 2030    nil
> 2100    3.6
> 2130    nil
> 2200    nil
> 2230    nil
> 2300    nil
> 2330    0.2
> 0000    nil
> 0030    0.3
> 0100    2.5
> 0130    0.3
> 0200   -1.2 *
> 0230    4.4
> 0300    nil 
> 0330    1.2 *
> 0400    7.3
> 0430    nil
> 0500    2.7
> 0530    3.2
> 0600   10.0
> 0630   10.6 
> 0700    5.4
> 0730    nil
>
> * In two cases the VO1NA message was decoded, but superseded by a false 
> decodes with fewer bit errors. Best center frequency seemed to vary 0.2 ... 
> 0.4 mHz below nominal. The pieces of carrier between the messages were very 
> helpful and correlated well with successful decoding.
>  
> How about trying longer messages and faster symbols (e.g. 20 char, 0.5 s) , 
> rather than low power?
>  
> Best 73,
> Markus
>
>
>
> -----Ursprüngliche Mitteilung-----
> Von: Paul Nicholson <vlf0403@abelian.org>
> An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
> Verschickt: Mo, 30 Nov 2015 1:24 pm
> Betreff: Re: LF: More EbNaut 137.777
> VO1NA 2015-11-29/30 8K19A 2S 5C
>
>  20:00  6.2 dB
>  20:30  7.0 dB
>  21:00  3.2 dB
>  21:30  1.4 dB
>  22:00  5.4 dB
>  22:30  no decode
>  23:00  8.7 dB
>  23:30  6.8 dB
>  00:00  no decode
>  00:30  5.4 dB
>  01:00  4.9 dB
>  01:30  no decode
>  02:00  no decode   (Andy 1.5 dB)
>  02:30  no decode
>  03:00  1.5 dB
>  03:30  1.1 dB
>  04:00  no decode
>  04:30  no decode
>  05:00  no decode
>  05:30  no decode
>  06:00  -0.3 dB
>  06:30  1.4 dB      (Andy 1.4 dB)
>  07:00  3.3 dB
>  07:30  2.8 dB
>  08:00  no decode
>  08:30  1.2 dB
>  09:00 -1.6 dB
>  09:30  no further decodes ...