In article , Paul Keinanen
writes:
On 22 Oct 2003 20:21:16 GMT, (Avery Fineman)
wrote:
Bill, I just dug out the 1977 issues of HR from storage and looked
the article over. Author Richard Slater (W3EJD) said almost the
same thing at the end of the article on page 15 under "closing
comments." The nomenclatures for different modulations were
formalized by the ITU-R since then but the FCC still doesn't have
anything covering this "single-sideband FM" modulation type for
U. S. amateur radio.
The ITU-R emission designations are quite outdated and many modern
emissions use din commercial and military systems would be designated
as XXX. In each case the X means "none above" in the corresponding
column.
Okay, I won't argue the ITU-R thing since I haven't had the ability
(by working for a subscribing corporation) to access them. I was
going by the "Red Book" information from the U. S. National
Telecommunications and Information Agency (NTIA). Over here
the NTIA regulates government radio use while the U. S. Federal
Communications Commission regulates civil radio use. The
method of specifying modulation type, bandwidth, etc., are all
explained in there and the FCC follows the same nomenclature.
Anyway, why should the amateur radio regulations contain these ITU-R
designations ? Here in Finland, ITU-R emission designations were
removed from amateur radio regulations and exam in 1997 and only band
specific power and bandwidth limits are used. I haven't heard of any
problems due to this decision.
That's a whole other area that, for amateur radio use, can be and has
been argued in rec.radio.amateur.policy.
As far as I'm concerned, and no one has ever proved otherwise,
electrons, fields, and waves all follow the Laws of physics...and they
don't give a @#$%!! about human laws. :-)
Len Anderson
retired (from regular hours) electronic engineer person