[asterisk-users] Require a Type 102 milliwatt number

Jay R. Ashworth jra at baylink.com
Wed May 28 09:26:44 CDT 2008


On Tue, May 27, 2008 at 08:42:58PM -0500, Lyle Giese wrote:
>    The sampling rate on a T1 for a DS0 is 8kHz and 1kHz is a harmonic of 8kHz
>    and harmonic distortion can cause significant measurement errors.  So early
>    on engineers tuned the test frequency to be slightly off to keep harmonic
>    distortion to a minimum when taking loss measurements.

See?  There's a really *good* reason it's not 1kHz, exactly.

So, having it be exactly 1kHz can make it useless (actually, worse than
useless -- actively harmful) for precisely the purpose you need it for:
measuring things on T-1s.

Cheers,
-- jra
-- 
Jay R. Ashworth                   Baylink                      jra at baylink.com
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