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Re: VLF: EbNaut 8270.1, Thursday Mar 10

from [Markus Vester] [Permanent Link][Original]
To: <[email protected]>
Subject: Re: VLF: EbNaut 8270.1, Thursday Mar 10
From: "Markus Vester" <[email protected]>
Date: Thu, 10 Mar 2016 17:05:47 +0100
Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20150623; t=1457625954; bh=r3wZJZ82U6epmAzs7lXktrIMCp9kZuRvAn7u6su6IoM=; h=From:To:Subject:Message-ID:Date:MIME-Version:Content-Type; b=72njdZXkhobHM36gOj159hyEZPEv0SXIIzJn8w3TC/JeMSW6Df5rHinHTXqFenHAF KJ9dENmU80wVKiYfdaBVleT1+6FF3iZNUauz8XUIIS66eRtC/u6fgNeyG8lhA3MmqW 8qTwY5nlUUvUaTO57ssTpIZ7mKVHzACmbBABuv3s=
Importance: Normal
References: <[email protected]> <258C4DDB9D264AFB819843A0DCCCEDE8@White>
Reply-to: [email protected]
Sender: [email protected]
Between the two EbNaut sequences (10:45 to 13 UT), I had sent a straight uninterrupted carrier on 8270.0025 Hz. This looked clean on my own monitor (which is referenced to the same GPS as the TX), but both grabbers at DK7FC and OK2BVG showed some fuzzyness and an interruption around 12 UT. Thus I suspected that GPS reception might have been temporarily affected by the VLF transmit antenna above it. Between 14:25 and 14:40, I briefly interrupted the transmission and repositioned the GPS antenna to obtain slightly better sky coverage, and have been sending another long carrier since then.
 
All the best,
Markus (DF6NM)
 

Sent: Thursday, March 10, 2016 1:48 PM
Subject: Re: VLF: EbNaut 8270.1, Thursday Mar 10

All looks good, antenna current stable at 0.34 A. The message will be repeated 13:00:02 to 14:25:22
 
73, Markus
 

Sent: Thursday, March 10, 2016 10:22 AM
Subject: VLF: EbNaut 8270.1, Thursday Mar 10

Another EbNaut message for Stefan has just been started at 09:20:
 
Frequency: 8270.100 Hz,
start time 09:20:02, 
5 characters, 8K19A, 16 bit CRC, 10 second symbols,
total duration 5120 seconds,
end time 10:45:22.
 
Best 73,
Markus (DF6NM)

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