Topband: Europrean SDR on 160M

[Frank]

Jacques

Definitely YES it is possible to easily do Trans-Atlantic DX QSo's with Eu 
now with NO receiver !!  I did it last night .  I worked quite a number of 
Eu stations on 1815khz by listening to the SDR rx in Trent on the web.  My 
FT1000MP was on and I could copy the signals over the air BUT the copy via 
the web was much easier .... signals very loud from the PC over the same 
speaker I use for the FT 1KMP.

There is some latency in the signal transfer but not significant. I could 
also hear my own signal quite clearly but with a slight delay through the 
SDR.  I had to focus on my CW sending and not my own reflected signal in 
order to send properly.  I am sure that SDR on the web was not intended to 
replace full QSO's over the air but it is possible to do it.   It is an 
unintended outcome I am sure.

Lets take this scenario:  Supposing UA0XXX Zone 19 is being heard in Eu on 
the SDR antenna but not in east NA......also lets say that VO1XYZ is being 
heard in Eu on the SDR antenna but not at UA0XXX QTH.   A QSO is possible if 
the two operators do co-ordination through one of the DX chat groups or by 
email.   No self respecting Dx'er would do this of course but the technology 
is now there to make it possible.

Is this DXing ...definitely not BUT it can be done.  One wonders what the 
future will hold for us with the advent of these  technologies and 
applications.

73 Frank VO1HP


----- Original Message ----- 
From: "Jacques RAMBAUD" <f6bki at orange.fr>
To: "Frank" <fdavis at nfld.net>
Sent: December 29, 2009 14:06
Subject: Re: Topband: Europrean SDR on 160M


> If I understand correctly you can make DX qso even if you do not hear the 
> DX
> station at all ???
> 73
> Jacques F6BKI
> ----- Original Message ----- 
> From: "Frank" <fdavis at nfld.net>
> To: <topband at contesting.com>
> Sent: Tuesday, December 29, 2009 12:08 PM
> Subject: Topband: Europrean SDR on 160M
>
>
> Last night I was alerted by Gus VO1MP of some new SDR websites in Europe .
> Check HB9FX: http://hb9fx-websdr.dyndns.org/ and also a seven rx site in
> Trent at: http://websdr.ewi.utwente.nl:8901/
>
> It was facinating to listen to 160M from a receiver based in Europe.
> Tremendously strong sigs in the PC speaker.   I called CQ on 1815 and 
> worked
> a few Eu stations by listening to their signals on the European SDR  not 
> on
> my shack rx.  The guys I worked were good copy on my K9AY and FT1KMP but I
> just turned down the AF gain.   I could also hear my own signal coming 
> back
> through the SDR even though I could only see the faintest of lines on the
> waterfall display.   Surprising to me were the many NA stations very 
> strong
> with me not being heard on the Eu SDR.  Don't know yet what kind of 
> antennas
> are being used over there.
>
> This may be old news to many  but check it out!
>
> 73 Frank VO1HP
>
>
> --------------------------------------------------------------------------------
>
>
>> _______________________________________________
>> "160-meters is a band for men, not for sissies!" - SM5EDX
>
>
>


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