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[Discuss-gnuradio] GRC and unit of signal amplitude in USRP

From: Bruhtesfa Ebrahim
Subject: [Discuss-gnuradio] GRC and unit of signal amplitude in USRP
Date: Thu, 15 Jan 2009 15:23:09 +0100

Hey all,

I have just 2 questions, actually they are not related (are independent

1. I want to install GRC(gnu radio companion), and i need to install
pygtk and cheetah as prerequisite. I downloaded the tar files and
extract them, but there is no configure and make files in both of
them.So, how can i install them without these files?

2. What is the unit of the amplitude that we use in transmitting and
recieving waveforms in USRP. For instance, in usrp_siggen.py the
waveform amplitude is set to a default value 16000, so what is this
number, is this millivolt? Also in usrp_fft.py a reference amplitude
scale 0f 13490 is used. So, what is the unit of these numbers?


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