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Re: LF: More EbNaut 137.777

To: [email protected]
Subject: Re: LF: More EbNaut 137.777
From: [email protected]
Date: Mon, 30 Nov 2015 16:25:18 -0330 (NST)
In-reply-to: <[email protected]>
References: <[email protected]> <[email protected]>
Reply-to: [email protected]
Sender: [email protected]
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* In two cases the VO1NA message was decoded, but superseded by a false 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 &lt;[email protected]&gt;
An: rsgb_lf_group &lt;[email protected]&gt;
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 ...
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