Audio is Popping Randomly

I have a DVX100B with a Sennheiser Shotgun connected by XLR, taping on Panasonic AY-DVM63AMQ tapes.
No matter if the second input is the in-camera mic or XLR connection to the theater source line ~ I still get spontanteous popping at various rates and at different place on all the tapes ~ it is happening through both channels, so it's not the mics ~ some times the pops happen ever second and some times they will disappear for more than 10 minutes at a time.
(1) What is it?
(2) What is the best tool to use in post (FCP, Soundtrack Pro, ETC)?
(3) Thank you.

When you were originally recording with the camera, did you hear the popping sound in your headphones?
You've already stated you hear it in FCP; do you hear it in the camera's headphone output when playing back the tape? Or when playing the file in QuickTime Player?
1) It could be due to over-modulation of the sound source when recording, or the record level set too high. But try the above so we'll know.
2) Depends on what you find out after trying the above.
3) You're welcome.
-DH

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