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Re: LF: OE5ODL VLF received in France

To: "[email protected]" <[email protected]>
Subject: Re: LF: OE5ODL VLF received in France
From: Roger Lapthorn <[email protected]>
Date: Wed, 19 Jan 2011 19:22:42 +0000
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We all hope that this is sometime soon Mal.

73s
Roger G3XBM

Sent from my iPod Touch 4g

On 19 Jan 2011, at 18:56, "mal hamilton" <[email protected]> wrote:

VLF communication over several hundred kilometres is possible from fixed antennas, which are suitable for purpose, also plenty of RF watts.
I would hope to cover more than 500 kilometres with my fixed antennas if I ever get interested in the Dreamers band.
g3kev
 
 
 
 
----- Original Message -----
Cc: oe5odl
Sent: Wednesday, January 19, 2011 6:38 PM
Subject: Re: LF: OE5ODL VLF received in France

Hi Nicolas,

The distance is 797km, http://no.nonsense.ee/qthmap/?qth=JN18IP&from=jn68rb

This is a VERY impressing and remarkable RX result! His signal seemed to be rather low today, compared to monday but you've got an excellent reception in 4.5 mHz. Congrats to you and of course Ossi! The first OE-F contact on VLF it seems :-)

Your loop design becomes more and more interesting for me! Would be interesting to compare it to an active E field antenna at the same location.
What do you estimate is the SNR loss if you would choose the quietest location where the loop can be fixed arranged?

This shows that VLF reception in the range above 500 km and even QSOs may be done by fixed antennas! A good VLF day!

73, Stefan/DK7FC





Am 19.01.2011 18:25, schrieb [email protected]:
Hello Dreamers, Ossi attached my screen capture of your VLF transmission this afternoon.
In portable for a noise-free environment, locator JN18IP.
 
Best regards F4DTL/P

-----E-mail d'origine-----
De : o.ossy <[email protected]>
A : f4dtl <[email protected]>
Envoyé le : Mercredi, 19 Janvier 2011 15:28
Sujet : Re: LF: OE5ODL VLF ?

hallo niclas
tnx fer your report ,
so in this time i transmiting only with the marconi
220 ma smal signal fore  testing the conds ,
weather here very poor stormy and snowfall ,
wet wx conds not good fore high voltage on the anttena,
and no ballon by strong wind ,
so by the next activity i gife a info on the reflector,
you can see the smal signal on my grabber here 10 km from my station, peaking 
only to -80 db ,
normaly by ballon 100m high its on -70 db ,
http://www.langwelle.at/,

73 oe5odl


[email protected] wrote:
>
> OE5ODL VLF is on air this afternoon ?
>
> F4DTL/P JN18IP
>
>
>
>
>
>
> -----E-mail d'origine-----
> De : F4DTL <[email protected]>
> A : rsgb_lf_group <[email protected]>
> Envoyé le : Mardi, 18 Janvier 2011 17:32
> Sujet : Re: VLF: 8970.02 Hz + 10th
>
>
> Hello Dreamers, maybe the ODL's VLF transmission but I did not have
> enough time because it was during my lunch raises labor. Reception in
> QRSS600.
>
> OE5ODL could you schedule one transmission this week-end with email via 
> RSGB to informe all.
>
> F4DTL Nicolas  @JN18FP
>
> RX : SL config
> Ant: Miniwhip VLF modified
>
>
>
>


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