[Dolern]

Hey y'all,

I recently got a Zoom H4, and have been carting it around recording
stuff to see what the little recorder is all about. I've noticed, now,
a recurring problem: I keep seeing this "blip" that appears about once
every 1 second, which appears to be about .1 or .12 seconds long -
lets ballpark it at 6Hz.


Here are two screenshots of a test sample recorded in my noisey
appartment:

The problem: http://img143.imageshack.us/img143/6432/longwz0.jpg
Example of its repeating behavior: http://img220.imageshack.us/
img220/9443/closeam3.jpg


Now, of course, I can't actually hear it, and as well I can strip uber-
low frequencies out. But, I'm both curious as to what it might be, and
worried that perhaps its a sign of some issue that I should be
concerned about. Any ideas or insight appreciated. Please use the
audio version of small words in any replies you may kindly leave - I
am a novice.


Thanks!
-df