[TenTec] INRAD filter specs

[dacalvin@us.ibm.com]

I was just poking around the INRAD site and checked out some of the filter
curves.  I see they are prone to a little specsmanship - their "400 Hz" filters
for the Omni are really 490 Hz at 6 dB down (both the 750 and 753 filters), and
the "250 Hz" #751 filter is actually 340 Hz at 6 dB down.  I supposed they made
up what they could with good shape factor that would be nominally close to the
button markings on the rig, but I think I'd have called the 400 Hz filters 500
Hz instead.  That said, I wonder what the Network Sciences filters' bandpass
curves look like.

     73,  Duane   AC5AA  (with one INRAD 400 Hz <really 420> installed in an old
IC-735...)

Duane A. Calvin
Server Systems Test Engineer
Dept. 76TS   RS/6000 - SP Nodes
IBM Austin, TX      >O<     Tie: 793-3368



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