Return to KLUBNL.PL main page

rsgb_lf_group
[Top] [All Lists]

Re: VLF: First VLF detection DL > EA

To: [email protected]
Subject: Re: VLF: First VLF detection DL > EA
From: DK7FC <[email protected]>
Date: Sat, 09 Dec 2017 14:32:32 +0100
Dkim-signature: v=1; a=rsa-sha256; c=relaxed/simple; d=posteo.de; s=2017; t=1512826354; bh=g4UYDAAtf05EVFWhh6XA0wXrvVKjrxCSIMQ2gQMkJvU=; h=Date:From:To:Subject:From; b=SSuDRTAUwaVKU0nNyaf9NxocobWPVkHH3nbpizdBdj2/ytb/XjcefQ3psMdZZkfkA mwBdIcbbzBPaMjRD38lkgtBg86a3Ba0jPDBeEp9p0V8ZZzn/W38nTjrj5rvOhBrZTr dDkUzbrddrK2Z6nxPVjHp3hFjLoP9UG9WVA9LZT4pCcDucC62X5o3QCbwq5X89Spu8 hhg7fhJCKyViU3KvOZgsdetbXGkh5wJQfgDP4DcrBKFKkLsBJhwYoz5B97T0HMlwtl HdHlE/YnUDp2rMAPi/bgaOgpMfs0MGTTQaC4MpgmCFDIUSHkxRLFo/BoSpOMYdCwOg LzQJ24/9Lg+cg==
In-reply-to: <[email protected]>
References: <[email protected]> <[email protected]> <CANA3B6VmLfG7AA692ajKxa6+swztKOmi-YcattQQOi_mMPzitA@mail.gmail.com> <[email protected]> <CANA3B6X8GZOzduMGcppmDHdTDQ6R5Pq6GHSUuRuuRASe9WbA7Q@mail.gmail.com> <[email protected]> <CAEduzkpDMw-kvmbU9q4DMhtzeQJdQd=5D0Xqa73auHaVGpH-8A@mail.gmail.com> <CAL4b5hBWRNbMSm7P2H6BTDTa3qPEiHNgF16R9o3A-X9ggAV6uw@mail.gmail.com> <579355A36AEE9D4FA555C45D556003AB9AAB0EB9@servigilant.vigilant.local> <[email protected]> <CANA3B6UU_AWP3S4K0XT4yju_ZKi+DM3Z8LYAOu0_KrHXR_W9aA@mail.gmail.com> <[email protected]>,<[email protected]> <579355A36AEE9D4FA555C45D556003AB9AAB354F@servigilant.vigilant.local>,<[email protected]> <579355A36AEE9D4FA555C45D556003AB9AAB5023@servigilant.vigilant.local> <[email protected]> <[email protected]>
Reply-to: [email protected]
Sender: [email protected]
User-agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3
Thanks Jacek,

I confirm the message you sent to me in a separate mail. My congrats. So 30+ characters would be no problem in one night. Luis, has already shown the message, so it is no secret :-)

On my own grabber (which is still running), http://www.iup.uni-heidelberg.de/schaefer_vlf/DK7FC_VLF_Grabber2.html the signal level is equal to that of GBZ 19.58 kHz ;-) But the distances are a bit different ;-) I can hear the signal loud and clear in a comfortable CW filter. It is at 35 dB in 366 mHz (without a NB) here in 3.5 km distance, which is the far field already :-)

73, Stefan

Am 09.12.2017 13:53, schrieb Jacek Lipkowski:
Stefan's transmission on 20171206 22:00 17470.1Hz:

found rank 0 ber 2.2135e-01 Eb/N0 11.2 M -1.417898417e+00 [***] ps [104 -60 -30 -30 0]
carrier phase: 9.6 deg
carrier Eb/N0: 12.0 dB
carrier Es/N0: -4.50 dB
carrier S/N: 24.35 dB in 32.6 uHz, -20.52 dB in 1Hz, -54.50 dB in 2.5kHz
elapsed 1187

And right now Stefan is almost overdriving my grabber (note that the amplitude scale is set manually so the max amplitude is bigger than what is presented on the scale):

https://klubnl.pl/wpr/en/index.php/klubnl-pl-grabbers/tymczasowy-grabber-sq5bpf-do-testow-stefana-dk7fc-na-17-4701hz/

1.2A seems to be doing it's job.


VY 73

Jacek / SQ5BPF




<Prev in Thread] Current Thread [Next in Thread>