Jumpy Airspeed Readings

I don't know if this issue is related to hardware, software or my setup, or if it's an issue at all.

I have two airspeed sensors and both exhibit jumpy readings when the plane is static and indoors. When flying, the log (screen shot below) shows a lot of noise in both airspeed and throttle output readings--throttle is being controlled by airspeed.

I thought I had a bad sensor, so I replaced it, but the new one shows the same behavior. I tried moving the sensor further away from the other electronics, but that didn't help. I used different wire connectors, but that did not resolve this issue either.

Is this jittery output normal?  Also, could this high frequency of throttle change lead to long term damage of the ESC or motor, or shorten battery life?

Any thoughts or suggestion will be appreciated.

Log file attached.


Thanks,
Paul

3690969495?profile=original

2012-10-27 10-32-12 Rexroth.tlog

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