Transient when changing valve state

GNU Radio
1

I have a grc file that has a UHD source with output going to two places.

  1. A scope graphical sink
  2. A valve

When I change the state of the valve, I see a glitch on the scope
output.
I would think that since the valve is not between the source and the
scope
that it would not affect the samples going to the scope. But it does.
Why?

Thanks,

        David

PS -
video of glitch: scope2.flv - YouTube
grc window:
https://docs.google.com/leaf?id=0B5MNiGB_nlGJNDAyNzViNGYtZGJmYy00M2ZkLTlhNTktZWQyOGNmYmZlMGIw&hl=en&authkey=CP266Z0N
grc file -
https://docs.google.com/leaf?id=0B5MNiGB_nlGJYWM0NDkwN2MtOTUwYy00NThkLWI0MDQtZWNjMTBhYjk2MWY2&hl=en&authkey=CJa60JME

2

David:

How did you generate the YouTube
video from your Linux machine??

Did you use recordMyDesktop??
(http://recordmydesktop.sourceforge.net/)

Thanks.

Steve McMahon