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[Discuss-gnuradio] file sink issues

From: Eugene Lee
Subject: [Discuss-gnuradio] file sink issues
Date: Wed, 9 May 2012 11:44:40 -0700 (PDT)

I am having an odd problem with the file sink. I am inputting a pulsed signal
into the N210. (~200 ns, 1 us period). The pulse frequency is a 5 MHz above
the center frequency. I am running at 50 MSps with a RFX2400. I can see the
correct plot when using the FFT sink and the scope sink.  I see a short
burst of sinusoidal signal and 800 ns of zero. 

However when I use a file sink, I see a 1.5 MHz signal that pervades the
entire stream. I have recorded a signal before without a problem, but not at
50 MSps. 
http://old.nabble.com/file/p33763650/untitled.png untitled.png 

If I look at the abs value, then it appears as if I have a DC offset. 
http://old.nabble.com/file/p33763650/untitled2.png untitled2.png 

But I am not sure why I only see this problem when I stream to a file as
opposed to the file sink.
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