Re: LF: Re: 500: DI2BE frequency and ERP at the moment ?

[Wolfgang Büscher <dl4yhf@freenet.de>]

Hello Lubomir,

The SDR-IQ (and SDR-14) support is implemented since V2.7 b19, which is 
available on my website (even though it's still under "heavy 
development", since I soon need those functions in a radio astronomy 
project - but that's another story). So I upload it quite frequently 
without changing the version number. The latest version is here:
http://dl4yhf.ssl7.com/spectra1.html

The only "external" software defined radios which do *not* require a 
soundcard for reception are SDR-IQ and SDR-14 (by RFSPACE), it has 
nothing to do with SDradio. The reason for the direct support of SDR-IQ 
was that I needed to **eliminate** the soundcard as "input source" for 
the radio astronomy application, because of the heavy "baseband QRM" at 
the telescope's site which affects the soundcard, but not the SDR-IQ 
because it digitizes the RF signal directly (with an A/D converter 
running at 66.6 MSamples/second) before the downconversion.
Best regards,
 Wolf .

Lubom�r Bobal�k schrieb:
> Hello Wolf!
> It is very interesting, you have new version of Spectrum Lab with
> possibility directly connection on SDRadio. Is it any chance to get this
> new program? I use SpectrumLab V2.6 b 3 now. 
> The capture has been taken by my home made SDRadio + pragram Winrad +
> Spectrum Lab. I use two sound cards in my PC.
>
> Thanks!
>
> Lubos, OK2BVG
>
> -----Original Message-----
> From: owner-rsgb_lf_group@blacksheep.org
> [mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of Wolfgang
> B�scher
> Sent: Monday, July 23, 2007 9:12 PM
> To: rsgb_lf_group@blacksheep.org
> Subject: Re: LF: Re: 500: DI2BE frequency and ERP at the moment ?
>
> Hello Geri,
>
> Thanks for the info. Yes, DI2BO positively identified here, though not 
> as strong as DI2BE on 505.12 and SM6BHZ on 505.1 . DI2AG on 505.09 kHz 
> also visible at times, but with deep QSB. All seen around 19:00 UTC.
> Receiver : Spectrum Lab, directly connected to an SDR-IQ, running at 196
>
> kHz sampling rate.
> Antenna : Shortwave attic dipole, not matched. Works better than an 
> active antenna on the workbench, because the PC's power supply causes a 
> lot of QRM near 500 kHz.
> Cheers,
>   Wolf DL4YHF .
>
>
>
> Holger 'Geri', DK8KW schrieb:
>   
> > Wolf,
> >
> >   
> > DI2BO in JO52BH is still up and running continously on 505.015 kHz in
> >     
> QRSS3
>   
> > and 6 WPM CW. ERP is 1.7 mW(!)
> >
> > Best 73
> >
> > Geri, DK8KW/DI2BO
> >
> >   
> >     
>
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