[Discuss-gnuradio] Tx path problems with RFX-900
Hello,everyone I have two problems about USRP Tx path as below: 1.General in the TX path,transmit data repeat again and again(I use RFX-900 daughterboard),but in my reseach I need to transmit data one period ,or after break some period,continue to transmit data.How do I do it? 2.I want know Tx FIFO how full it is.Have any command or program script in Gnuradio can show the FIFO state? -- This message was sent on behalf of [EMAIL PROTECTED] at openSubscriber.com http://www.opensubscriber.com/messages/discuss-gnuradio@gnu.org/topic.html ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] Problem with RFX900 daughterboard
Hi,everyone! I'm trying to transmit square wave from one RFX900 at frequency 915MHz,and I use the spectrum analyser to receive the signal.That's right to work.But after several days,I want to transmit square wave from TX/RX port and receive it from RX2 port with two antenna.First I execute a terminal to run transmit program,then I execute the other terminal to run usrp_oscope.py receive the square wave.Two program run at the same time.At first I can see the square wave at scope sink,but in a moment the signal degrade a lot and became more and more strange.At the last test,I transmit the square wave from TX/RX and receive from spectrum analyser,but I can't see the signal anymore.I doubt RFX900 daughterboard is breakdown.I add my square wave code.Could everybody tell me what's wrong about my experiment or my code? Thanks for help Henry class filesource (stdgui.gui_flow_graph): def __init__(self,frame,panel,vbox,argv): stdgui.gui_flow_graph.__init__ (self,frame,panel,vbox,argv) src=howto.mysource(100,gr.GR_SIN_WAVE,4,1) amp=gr.multiply_const_cc(8000) aa=gr.binary_slicer_fb() bb=gr.char_to_float() cc=gr.float_to_complex() self.connect(src,aa,bb,cc,amp) inter=12800/100 freq=915e6 sink=usrp.sink_c(0,inter) subdev=(0,0) m = usrp.determine_tx_mux_value(sink,subdev) sink.set_mux(m) subdev1=usrp.selected_subdev(sink,subdev) print "Using TX d'board %s" % (subdev1.side_and_name(),) r=usrp.tune(sink,0,subdev1,freq) subdev1.set_enable(True) self.connect(amp,sink) if 0: scope = scopesink.scope_sink_c(self, panel, sample_rate=100, frame_decim=1, v_scale=500, t_scale=0.25) self.connect(amp,scope) vbox.Add (scope.win, 1, wx.EXPAND) if __name__ == '__main__': app = stdgui.stdapp (filesource, "") app.MainLoop () -- This message was sent on behalf of [EMAIL PROTECTED] at openSubscriber.com http://www.opensubscriber.com/messages/discuss-gnuradio@gnu.org/topic.html ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] Problem with RFX900 daughterboard
Hi,everyone! I'm trying to transmit square wave from one RFX900 at frequency 915MHz,and I use the spectrum analyser to receive the signal.That's right to work.But after several days,I want to transmit square wave from TX/RX port and receive it from RX2 port with two antenna.First I execute a terminal to run transmit program,then I execute the other terminal to run usrp_oscope.py receive the square wave.Two program run at the same time.At first I can see the square wave at scope sink,but in a moment the signal degrade a lot and became more and more strange.At the last test,I transmit the square wave from TX/RX and receive from spectrum analyser,but I can't see the signal anymore.I doubt RFX900 daughterboard is breakdown.I add my square wave code.Could everybody tell me what's wrong about my experiment or my code? Thanks for help Henry class filesource (stdgui.gui_flow_graph): def __init__(self,frame,panel,vbox,argv): stdgui.gui_flow_graph.__init__ (self,frame,panel,vbox,argv) src=howto.mysource(100,gr.GR_SIN_WAVE,4,1) amp=gr.multiply_const_cc(8000) aa=gr.binary_slicer_fb() bb=gr.char_to_float() cc=gr.float_to_complex() self.connect(src,aa,bb,cc,amp) inter=12800/100 freq=915e6 sink=usrp.sink_c(0,inter) subdev=(0,0) m = usrp.determine_tx_mux_value(sink,subdev) sink.set_mux(m) subdev1=usrp.selected_subdev(sink,subdev) print "Using TX d'board %s" % (subdev1.side_and_name(),) r=usrp.tune(sink,0,subdev1,freq) subdev1.set_enable(True) self.connect(amp,sink) if 0: scope = scopesink.scope_sink_c(self, panel, sample_rate=100, frame_decim=1, v_scale=500, t_scale=0.25) self.connect(amp,scope) vbox.Add (scope.win, 1, wx.EXPAND) if __name__ == '__main__': app = stdgui.stdapp (filesource, "") app.MainLoop () -- This message was sent on behalf of [EMAIL PROTECTED] at openSubscriber.com http://www.opensubscriber.com/messages/discuss-gnuradio@gnu.org/topic.html ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
[Discuss-gnuradio] Problem with RFX900 daughterboard
Hi,everyone! I'm trying to transmit square wave from one RFX900 at frequency 915MHz,and I use the spectrum analyser to receive the signal.That's right to work.But after several days,I want to transmit square wave from TX/RX port and receive it from RX2 port with two antenna.First I execute a terminal to run transmit program,then I execute the other terminal to run usrp_oscope.py receive the square wave.Two program run at the same time.At first I can see the square wave at scope sink,but in a moment the signal degrade a lot and became more and more strange.At the last test,I transmit the square wave from TX/RX and receive from spectrum analyser,but I can't see the signal anymore.I doubt RFX900 daughterboard is breakdown.I add my square wave code.Could everybody tell me what's wrong about my experiment or my code? Thanks for help Henry class filesource (stdgui.gui_flow_graph): def __init__(self,frame,panel,vbox,argv): stdgui.gui_flow_graph.__init__ (self,frame,panel,vbox,argv) src=howto.mysource(100,gr.GR_SIN_WAVE,4,1) amp=gr.multiply_const_cc(8000) aa=gr.binary_slicer_fb() bb=gr.char_to_float() cc=gr.float_to_complex() self.connect(src,aa,bb,cc,amp) inter=12800/100 freq=915e6 sink=usrp.sink_c(0,inter) subdev=(0,0) m = usrp.determine_tx_mux_value(sink,subdev) sink.set_mux(m) subdev1=usrp.selected_subdev(sink,subdev) print "Using TX d'board %s" % (subdev1.side_and_name(),) r=usrp.tune(sink,0,subdev1,freq) subdev1.set_enable(True) self.connect(amp,sink) if 0: scope = scopesink.scope_sink_c(self, panel, sample_rate=100, frame_decim=1, v_scale=500, t_scale=0.25) self.connect(amp,scope) vbox.Add (scope.win, 1, wx.EXPAND) if __name__ == '__main__': app = stdgui.stdapp (filesource, "") app.MainLoop () -- This message was sent on behalf of [EMAIL PROTECTED] at openSubscriber.com http://www.opensubscriber.com/messages/discuss-gnuradio@gnu.org/topic.html ___ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
