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[Discuss-gnuradio] Fwd: USRP2 Lo Frequency Change

From: Justin Bracken
Subject: [Discuss-gnuradio] Fwd: USRP2 Lo Frequency Change
Date: Wed, 1 Dec 2010 08:12:11 -0500

It appears that the server went down yesterday. I don't know if anyone recieved these messages. I apologize for any Deja vu this causes. Please see the following:

---------- Forwarded message ----------
From: Justin Bracken <address@hidden>
Date: Tue, Nov 30, 2010 at 11:35 AM
Subject: USRP2 Lo Frequency Change
To: address@hidden

Hello All,
As always thanks for the help.
I was doing some timing measurements the other day and was wondering if this seemed reasonable to you all. I did a simple setup in GRC where I had a toggle switch that changed the frequency the usrp used as an LO. I input a constant of 1 into the USRP2 block and then hooked the usrp2 to a highspeed oscilliscope. I used the toggle switch to change the lo frequency back and forth and with the aid of a stopwatch I saw that the change took about 1.2 seconds to take affect. Is 1.2 seconds a reasonable or expected amount of time? Or is this more indicative of something else?

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