AM modulated signal


#1

Hi
when I applied AM modulated signal to USRP from Signal Generator.
I can not getting the same modulating frequency.
Parameters are as.
RF Frequency = 900 MHz
Modulation Frequency=80KHz
Modulatio Rate=50%
I am using DBRX daughterboard:
The code is attached.
can any body check this code.
Thanks


#2

On Tue, Feb 03, 2009 at 05:57:47PM -0800, abrar muhammad wrote:

Hi
when I applied AM modulated signal to USRP from Signal Generator.
I can not getting the same modulating frequency.

What are you getting?

Have you tried looking at the signal using usrp_fft.py?


#3

Hi
As I am getting only real one in time domain.
the wave form shows modulating frequency of about 5 KHz.
and when i Just applied carrier of 900 MHz it gives the wave form of
about 71 KHz.


#4

I have tried the usrp_fft.py.
it works on frequency only between 1.5G to 2.0 G.
otherwise shows failed:
what its means.