Hi Kouki, I don't think you will see the signal in an FFT window. GPS is spread spectrum and the signal is below the noise floor. But the signal is still decodable.
On 12/07/2011 08:38 PM, 山本弘貴 wrote: > Hi,all. > > I want to receive GPS L1 signal.and want to analyze location data in PC > > Now I use following GPS antena USRPN200 and DBSRX2. however, GPS > signal's amplitude is very small. Ican't see gps signal in FFT > http://www.amazon.co.jp/%E3%83%91%E3%82%A4%E3%82%AA%E3%83%8B%E3%82%A2-GPS%E3%82%A2%E3%83%B3%E3%83%86%E3%83%8A-5m-AN-G031/dp/B003V70RGG > > This time I want to change GPS antena. > Please tell me about enough to amplitude of GPS antena. > > Thanks > > Kouki > > _______________________________________________ > Discuss-gnuradio mailing list > [email protected] > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio _______________________________________________ Discuss-gnuradio mailing list [email protected] https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
