On 10/22/05, Gituma Nturibi <[EMAIL PROTECTED]> wrote: > Greetings to all GNU radio enthusiasts. I'm an electronics and computer > engineering student currently undertaking a sofware radio project for my > final year. I would like to receive broadcast FM but the task seems to be > quite daunting as I don't have the resources to use the USRP or the PCI card > for reception. Is there anybody out there who has created an FM or even AM > front end from components? I would really like to get some info on that.
Well people have been building stand-alone superhet radios for years, but I assume you mean for GNU Radio. No, you will need some hardware beyond a stereo sound card for the reasons Eric mentioned (i.e. bandwidth of wide band FM is greater than the ADC of a sound card). You could build a single or dual stage superheterodyne VHF receiver with an IF output low enough (say 1 or 10 MHz) that you could with a USRP and BasicRX, or your could just use the USRP + TVRX for broadcast FM directly. You could also build a RF Front end (e.g. superhet down conversion) and a David Carr's SSRP <http://oscar.dcarr.org/ssrp/>. I assume that for a final year electronics engineering student building a superhet radio is not too hard. Chuck has a stereo FM application for GNU Radio at <http://webpages.charter.net/cswiger/spectrum_gauges/index.html>. > I would also like to find out more information on the N1BT software radio Sorry, I am not familiar with this. _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
