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

from [Michel Brunel] [Permanent Link][Original]
To: [email protected]
Subject: Re: VLF: EbNaut transmissions on lower frequencies?, pre-tests: 6.47kHz
From: Michel Brunel <[email protected]>
Date: Sat, 7 May 2016 14:11:53 +0200
In-reply-to: <[email protected]>
References: <[email protected]> <[email protected]> <[email protected]> <279E0DEFDAFA4C849152DBBA3BFEDE8C@White> <[email protected]> <[email protected]> <[email protected]>
Reply-to: [email protected]
Sender: [email protected]
Thanks Stefan,  VLF is a step toward LF, I'm planning to be "EbNaut ready" RX and TX  for summer on 137 kHz 

It's too early to conclude about SpectrumLab on Linux/wine. It looks like higher resolutions fail and systematically stay at 62% sample acquisition. I need time to investigate on this problem. 
I'm also trying to setup Paul's excellents vlfrx-tools. I just need to build a proper integrator for the 1PPS  in order to feed vttime with a correct pulse. (1PPS pulse witdh = 25 mS)

73,  Michel - f5wk


Le vendredi 6 mai 2016 à 23:48:01, DK7FC écrivait :


 Hello Michel, 

That is very nice to hear, thank you for trying. Welcome back on VLF :-)
I remember you had very good results in the old days!
Currently i am running about 200 mA on 6480.00000 Hz, on request of DF6NM. Also i know that DJ8WX is listening and others too. 
Linux/wine, does it mean you are using SpecLab on Linux? If so, does it work well?
OK about EbNaut, exciting to see there are more RX stations. Maybe EA5DOM will leave a signal from the other direction in some time ;-)

73, GL, Stefan

Am 06.05.2016 23:30, schrieb Michel Brunel: 
Hello Stefan,

Now running the 40 µHz test under Linux/wine ...
Antenna is a 10 meter vertical (no loop yet, too noisy at home)

Hope to be ready for EbNaut in a few days.

73, Michel - f5wk


Le vendredi 6 mai 2016 à 11:05:54, DK7FC écrivait :


 Hello Markus, VLF, 

OK so i will run the next carrier on 6480 Hz for some hours this evening for you and Uwe. Prepare your receivers to 47 uHz (or 63 uHz maybe).

73, Stefan






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