Hi all,
I'm working on the gen2_reader project and got some trouble with the amp
block. We use the gr_multiply_const_ff to amplify the power of signal.
amp = gr.multiply_const_ff(amplitude)
tx = uhd.usrp_sink(options.args,uhd.io_type.COMPLEX_FLOAT32,
num_channels=1,)
self.connect(self.rea
Hi Marcus,
Thanks for your attention.
I have upload a bigger size image below. the x axis is sampling point which
reflects time and the y axis is margin which reflects the power.
I plot the image from the rx block of the gen2_reader project. The signal is
transmitted by the tx block of gen2_reader
Tom,
Value of the signal after the multiply_const block is amplitude,
We set the amplitude as much as 5000 to increase the transmit power of
signal is an advice from the developer of gen2_reader project Michael
Buettner, so it would be ok.
You said that the UHD transmitter takes signal samples f
Marcus，
Thanks for your advice and we do use the "very old" code exactly.
Would you please elaborate the "backing things off" things because I can't
your point of it.
Best
Lee
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lan
I have done some research work. The input values of uhd should be -1<=x<1,
and the gr_multiply_const_ff block has set the default amplitude to 1, so
this block seems useless.
The only way I found to scale the power of signal we transmit is to enhance
the gain of usrp_sink. However, we use RF
