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Re: LF: NA VLF

To: [email protected]
Subject: Re: LF: NA VLF
From: DK7FC <[email protected]>
Date: Sun, 20 May 2018 17:57:20 +0200
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Hello Joe,

OK, your settings should work fine as well. I have no experience if 16K23A is actually an advantage for short messages. We will see.

I'm looking forward to the results and will report as soon as possible :-)

73, Stefan



Am 20.05.2018 17:33, schrieb [email protected]:

Hi Stefan and thank-you for the encouraging report. At the moment, all
is set (I hope!) for:

One character, 8.2700075 kHz,
 2300, 1100 utc, 16K23A, CRC-21,
 784 symbols, 30 seconds

It will take some time to change to the settings you suggested -- we can
try this  after.

73 and tnx agn

Joe

On Sun, 20 May 2018, DK7FC wrote:

Hello Joe,

I searched for your last nights carrier in my recordings and found an impressive SNR, totally unexpected for this time in the year. See attachment. The carrier reaches 10.97 dB S/N in 39.7 uHz when starting at 23 UTC. This would easily decode a 1 char message. I remember we tried some weeks ago without success, even when stacking several days or nights.

Do we want to try again to detect a 1 char message?
Based on the last nights results i would suggest: 1 char, 16K21A, CRC26, Start 23:00 UTC, 30 sec symbols

HW? :-)

73, Stefan

Am 18.05.2018 01:54, schrieb [email protected]:

Hello VLF

The TX is QRV 8270.0075 Hz 10 uW ERP unmodulated carrier.

73
Joe VO1NA




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