I totally agree. The SDR is a different beast and you can not use well established "old world" standards to compare it by. This, along with delineation of the difference between a radio with a computer "in it" rather than a computer "doing it" is also a big educational process that has to be pushed forward.
Maybe some entry to mid-level tutorials describing the relative functions of the hardware (the I/Q IO device) and the software are in order. It can be a challenging concept to grasp in the abstract until you actually get you hands on a SDR. -Tim ---- "Si fractum non sit, id reficere" -Unknown Roman consultant -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ray Andrews Sent: Friday, April 13, 2007 9:52 AM To: [EMAIL PROTECTED] Subject: Re: [Flexradio] Q23. Regarding the FLEX-5000, can we assume ... Chas, I don't think that what the top DXers & contesters are using is necessarily a good judge of "performance". At a recent meeting of the Hoosier DX & Contest Club, I got into a discussion with a couple of out-of-town contesters who were there to pick up a plaque for top score in the Indiana QSO Party. They steadfastly declared that it was impossible for the SDR-1000 to be any good because it did not have any roofing filters. "Without roofing filters you cannot have good image rejection." I could not convince them that because it is a direct-conversion receiver and all filtering is done using DSP that it did not need roofing filters in the IF, and that the filtering provided by the DSP was superior to the roofing filters that they were used to. It is this type of Neanderthal thinking that we have to overcome to fully penetrate the market with a software-defined radio. I guess maybe a few of us will have to start winning contests to make them sit up & take notice. 73, Ray, K9DUR _______________________________________________ FlexRadio mailing list [EMAIL PROTECTED] http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Knowledge Base: http://kb.flex-radio.com/ FlexRadio Homepage: http://www.flex-radio.com/ _______________________________________________ FlexRadio mailing list [EMAIL PROTECTED] http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archive Link: http://www.mail-archive.com/flexradio%40flex-radio.biz/ FlexRadio Knowledge Base: http://kb.flex-radio.com/ FlexRadio Homepage: http://www.flex-radio.com/
