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Re: LF: More EbNaut 137.777

To: [email protected]
Subject: Re: LF: More EbNaut 137.777
From: [email protected]
Date: Sun, 29 Nov 2015 10:30:08 -0330 (NST)
In-reply-to: <CAA8k23Rrxfi8PRg4hy7XPh0X2wA39oqsy91=YR-MepHqCzAV7w@mail.gmail.com>
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Let's see if I can remember to key the TX tonight. Intend to start near dusk 2000ut.

Last night the TX was the old class E with 26V on the drain instead of
the usual 40.  The output was 20 watts -- this must be a record for
DF6NM. Thank-you Markus. The TX has a matching transformer and it would be interesting to replace this with an L section instead. Thanks Andy.
And thanks again, Paul.  Your code works very well.  Could you
give me a tip on writing a program that could run in the background
that could be used to key the TX on and off at half hour intervals?

Joe VO1NA

On Sun, 29 Nov 2015, Andy Talbot wrote:

So it looks as if I'll have to use the leave-it-to-record and go to bed
scheme. Then do the decodes next morning.
 Not being a night owl, live tests much beyond 2300 are not a favourite
pastime here

Andy  G4JNT

On 29 November 2015 at 10:27, Markus Vester <[email protected]> wrote:

Got a few successful decodes but only after midnight:

2015 Nov 29
start  Eb/N0
 UT      dB

0000     7.1
0030     7.6
0100     1.8
0230     2.2
0530     3.7
0600     5.3
0630     7.7
0700     3.8

I found that I needed the same time offset (0.4...0.5 s) every time. This
seems to be from a static delay in my receive processing chain (~ 4 samples
at 8.51 Hz decimated IQ samplerate).

Have a nice Sunday,
73, Markus



-----Ursprüngliche Mitteilung-----
Von: jcraig <[email protected]>
An: rsgb_lf_group <[email protected]>
Verschickt: So, 29 Nov 2015 1:13 am
Betreff: Re: LF: More EbNaut 137.777


Hi Andy, Paul, Group,



 You'rs truly was at fault for last few failures -- a carrier is

 helpful from time to time!   My regrets.

 I went back to v0.1 after.



 Hopefully all will be well for the rest of the night.



 Joe VO1NA


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