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Re: VLF: EbNaut transmissions on lower frequencies?, pre-tests: 6.47kHz

To: [email protected]
Subject: Re: VLF: EbNaut transmissions on lower frequencies?, pre-tests: 6.47kHz
From: DK7FC <[email protected]>
Date: Sat, 24 Dec 2016 15:15:34 +0100
In-reply-to: <[email protected]>
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Hello Paul,

The todays 6470 Hz transmission is lost. I had to restart the PC. The tree grabber is back and i saw that the phase is not stable all the time. I also saw that the PC time is drifting dramatically. It was not enough to sync the PC time each minute, so NTP + 1 PPS didn't work properly. It is a very old PC with 1.14 GHz CPU and 512 MB RAM running Win7 !. I need to use something better. And i ordered another GPS module to use PPS+NMEA on the transmit SL instance. Then these problems will be gone!!!

Tomorrow i'm continuing with the daily transmissions, as announced.

73, Stefan


Am 22.12.2016 02:24, schrieb Paul Nicholson:

Stefan,

Yes the receiver is running.  I have four repeats recorded.
Reception looks good but so far no decode.

I guess I need to try the decodes again, with a 2 second offset.

--
Paul Nicholson
--


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