Re: [Discuss-gnuradio] Re: Complex samples format with ASK modulation

2008-11-25 Thread Brian Padalino
On Tue, Nov 25, 2008 at 9:46 AM, Marco Bottino <[EMAIL PROTECTED]> wrote: > What do you mean with tune the target frequency? Isn't the carrier always at > 13.56MHz? > > I asked that because in my opinion I should not need any kind of phase > information because of the ASK modulation used that is an

Re: [Discuss-gnuradio] Re: Complex samples format with ASK modulation

2008-11-25 Thread Marco Bottino
Hello CJay, thank you for answering me! Selon "C.cc Jay" <[EMAIL PROTECTED]>: > Hello Marco > > I not familiar with RFID ASK10% or ASK100%. > > (1) > I use usrp -> sinkfft. I can see the wave and tune the target frequency > to 13.56MHz What do you mean with tune the target frequency? Isn't the

[Discuss-gnuradio] Re: Complex samples format with ASK modulation

2008-11-25 Thread C.cc Jay
Hello Marco I not familiar with RFID ASK10% or ASK100%. (1) I use usrp -> sinkfft. I can see the wave and tune the target frequency to 13.56MHz However, I don't understand the question "why USRP outputs I/Q samples?" I have to reading more knowledge about communication theory. (2) You want to