Re: VLF: EbNaut 8270.1, Thursday Mar 10

["Markus Vester" <markusvester@aol.com>]

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)

 

From: Markus Vester

Sent: Thursday, March 10, 2016 1:48 PM

To: rsgb_lf_group@blacksheep.org

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

 

From: Markus Vester

Sent: Thursday, March 10, 2016 10:22 AM

To: rsgb_lf_group@blacksheep.org

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)