Thanks, Stefan!
73 John
--------------------------------------------
On Wed, 12/27/17, DK7FC <[email protected]> wrote:
Subject: Re: LF: RE: New world record distance by W4DEX and IK1QFK
To: [email protected]
Received: Wednesday, December 27, 2017, 5:58 PM
8269.9 Hz.
See
the bottom entries at http://abelian.org/vlf/amateur-radio/
73, Stefan
Am 27.12.2017 23:46, schrieb John Fisher:
> What frequency? It doesn't say...
>
> 73 de VA3VVV
>
>
>
--------------------------------------------
> On Wed, 12/27/17,<[email protected]>
wrote:
>
> Subject:
LF: RE: New world record distance by W4DEX and IK1QFK
> To: [email protected]
> Received: Wednesday, December 27, 2017,
5:11 PM
>
>
Congratulations W4DEX, IK1QFK,
> Paul
and all others on the new record; fine work, and
> inspiring.
>
> 73,
>
> Jim AA5BW
>
>
> -----Original
Message-----
> From: [email protected]
> [mailto:[email protected]]
> On Behalf Of Paul Nicholson
> Sent: Wednesday,
>
December 27, 2017 2:22 AM
> To: [email protected]
> Cc: Renato Romero
> Subject: VLF:
>
New world record distance by W4DEX and IK1QFK
>
>
> W4DEX
> wrote:
>
> > 3 chars
16K21A
> CRC20
>
> 30 second symbols
> >
Start 22:30 UT
>
>
Success!
>
>
Decoded 'QRZ' at Cumiana (IK1QFK)
> with
> Eb/N0 =
+0.4 dB, BER 41.6%;
>
> S/N -31.7 dB in 1Hz, -65.7 dB
> in 2.5kHz
>
(after sferic blanking);
>
> List rank 5689, constant
> reference phase;
>
> Distance
> is 7173.4 km which is a new world
record for VLF message
> decode and a
record distance for EbNaut at all bands.
>
> Predicted Eb/N0
was +0.6
> dB.
>
> Decoded via the live
> VLF stream from Renato's E-field
receiver.
>
> These
two stations already
> hold the record
distance for carrier detection at VLF.
> This result extends that to a message
decode.
>
> Signal
data available in
> vlfrx-tools
format:
>
> http://78.46.38.217/w4dex-171226-vlf15.vt
>
> Decode with
>
> vtraw -oa
> w4dex-171226-vlf15.vt |
> ebnaut
>
-dp16K21A -r1 -S30 -k20 -N3 -v -PU -L500000
>
> Congratulations to
both
> stations for a great result.
>
> --
> Paul Nicholson
>
--
>
>
>
>
>
|
