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Re: VLF: tonite...

To: [email protected]
Subject: Re: VLF: tonite...
From: Markus Vester <[email protected]>
Date: Sat, 3 Jun 2017 15:43:01 -0400
Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20150623; t=1496518983; bh=sNq/Khd25U+3gCe8iuuQd+I9pZevD1G1V8SiMkxm8zg=; h=From:To:Subject:Message-Id:Date:MIME-Version:Content-Type; b=4BDZcsMlFu0aLk3DIC1xLNlbfIPO/hLHQ46vjpuMMPdmDF2cGLn+Hsm0aNeDm/D3o oWcS2kny6PhekuPGPWBWIp8Ex4d4vD/YkxpaQqPhcCD2Ot7UC7geIB2/b4agQ0eMw/ FM+f4k9JNEB06bUHBuUwn743Fgy5hx37VnLycyLM=
In-reply-to: <[email protected]>
Reply-to: [email protected]
Sender: [email protected]
Last night's 7-character message was also copied successfully at DL0AO in Amberg:

Cardioid antenna 237° (~SW): Eb/N0 = 5.7 dB / 5.2 dB (symbol errors / carrier)
Omnidirectional E-field probe: Eb/N0 = 3.1 dB / 2.2 dB

Best 73,
Markus

-----Ursprüngliche Mitteilung-----
Von: Paul Nicholson <[email protected]>
An: rsgb_lf_group <[email protected]>
Verschickt: Sa, 3. Jun 2017 19:22
Betreff: Re: VLF: tonite...


Stefan schrieb:

> f = 6470.100000 Hz
> Start time: 31.May.2017 21:00:00 UTC
> Symbol period: 20 s
> Characters: 8
> CRC bits: 4
> Coding 16K21A
> Duration: 6h, 24min

> ...for some reason the PSK stopped after about 5 hours

No decode from this one.

> f = 6470.100000 Hz
> Start time: 03.Jun.2017 3:00:00 UTC
> Symbol period: 24 s
> Characters: 7
> CRC bits: 5
> Coding 16K21A

Copied a famous name, +8.2 dB with constant reference.

carrier S/N: 24.23 dB in 38.9 uHz,
-19.88 dB in 1Hz,
-53.86 dB in 2.5kHz

An easy decode.

--
Paul Nicholson
--

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