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Re: LF: VLF EbNaut

To: [email protected]
Subject: Re: LF: VLF EbNaut
From: Markus Vester <[email protected]>
Date: Thu, 23 Nov 2017 16:17:29 -0500
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In-reply-to: <[email protected]>
Reply-to: [email protected]
Sender: [email protected]
Hi Joe,

are you applying the PSK modulation with an external mixer or XOR? Then you will need to undo it with another mixer in the pickup path, otherwise the PLL script will try to eliminate the modulation.

However if you use the SpecLab script which generates EbNaut from periodic actions, the software will internally generate phase reversals for the output and undo them again before phase comparison.  

Best 73,

-----Ursprüngliche Mitteilung-----
Von: jcraig <[email protected]>
An: rsgb_lf_group <[email protected]>
Verschickt: Do, 23. Nov 2017 0:49
Betreff: Re: LF: VLF EbNaut

Just a carrier tonight. Perhaps there was a problem with the
pick-up wire. It's disconnected now and the system is as it was

8.2700075 kHz


On Tue, 21 Nov 2017, [email protected] wrote:

> Hello VLF,
> Tonight: Ebnaut, 9 characters, 21s symbols starting 2200 ut.
> 16K21A, 20 bit CRC, 10 uW, 8270.0075 Hz.
> 73 and good luck,
> Joe VO1NA

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