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| Subject: | Re: LF: Re: 500: DI2BE frequency and ERP at the moment ? |
| From: | Wolfgang Büscher <[email protected]> |
| Date: | Mon, 23 Jul 2007 22:21:22 +0200 |
| Delivered-to: | [email protected] |
| In-reply-to: | <000001c7cd62$1b863da0$8700a8c0@rtv5f9d8dfdf44> |
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| Reply-to: | [email protected] |
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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.htmlThe 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 thisnew 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: [email protected] [mailto:[email protected]] On Behalf Of Wolfgang B�scher Sent: Monday, July 23, 2007 9:12 PM To: [email protected] 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 inQRSS3and 6 WPM CW. ERP is 1.7 mW(!) Best 73 Geri, DK8KW/DI2BO__________ Informace od NOD32 2414 (20070723) __________ Tato zprava byla proverena antivirovym systemem NOD32. http://www.nod32.cz------------------------------------------------------------------------ |
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