Re: [Discuss-gnuradio] FW: LFRX Board as Audio analyzer

[Kanbier, J.W.]

Can I add that somewhere in the python code?

 

Along with :

 

  self.usrp_simple_source_x_0 = grc_usrp.simple_source_c(which=0, side="A", rx_ant="RXA")
  self.usrp_simple_source_x_0.set_decim_rate(250)
  self.usrp_simple_source_x_0.set_frequency(0, verbose=True)
  self.usrp_simple_source_x_0.set_gain(0)

 

Greets,

 

Jasper

---

From: Matt Ettus [mailto:address@hidden
Sent: dinsdag 13 september 2011 18:13
To: Kanbier, J.W.
Cc: address@hidden
Subject: Re: [Discuss-gnuradio] FW: LFRX Board as Audio analyzer

You need to turn off DC offset correction.  DC offset 
correction results in a narrow spectral hole around DC.

Matt

On Tue, Sep 13, 2011 at 4:13 AM, Kanbier, J.W. <address@hidden> wrote:

Hi,

I am trying to do some audio analyzing with the usrp and lfrx board which claims to be dc-to 30mhz.
However it seems that the frequency response form  dc to let say 100hz is not flat (lacks)

I have set the USRP source on 0Hz..

Is this just a fact or am I doing something wrong.

Jasper Kanbier
Unix Beheer
BVS

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