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Re: [Discuss-gnuradio] Problems when receiving after transmit


From: George Nychis
Subject: Re: [Discuss-gnuradio] Problems when receiving after transmit
Date: Mon, 21 Jan 2008 14:02:28 -0500
User-agent: Thunderbird 2.0.0.6 (X11/20071022)



Johnathan Corgan wrote:
On 1/21/08, George Nychis <address@hidden> wrote:

I have a logic analyzer and RFX2400 board handy that I can test this
out.  Which pin is the mixer chip enable pin?

U101, pin 8.


When running usrp_rx_cfile.py the first time, i get no voltage reading from this pin.

Then I run usrp_siggen.py and get a little under 1V at the pin on average.

When I stop usrp_siggen.py the pin goes down to about 200mV, which is where it stays when i run usrp_rx_cfile.py the second time.

- George




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