[Discuss-gnuradio] USRP2 Lo Frequency Change

[Justin Bracken]

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?

 

Thanks,

Justin