[time-nuts] TimeNuts Assistance Request (Didier Juges)

Poul-Henning Kamp phk at phk.freebsd.dk
Mon Jul 21 03:38:00 EDT 2008

In message <DF39C0236E01174A915F25B2A3712CB233A988 at tsgexch01.gaming.tsogosun.co
m>, "Baragwanath, Chris (TSG)" writes:

>Yes, the 440Hz is primarily a reference for tuning musical instruments
>or calibrating tuners (i.e. PC sound cad based).  In doing a little
>"market research" as to the free frequency service, this freq. was
>preferred to the normal 500Hz or 600Hz and still just within analog
>telephone bandwidth.

Both analog and digital phone technology may transpose frequencies up
to 7 Hz in either directions.

It doesnt' happen as much as it did back on old carrier-frequency
transmission systems, but there can still be musically significant
frequency shifts.

Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.

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