Donald Chester wrote:
Proceeding: RM-11306 Type Code: CO
Date Received/Adopted: 01/10/06 Date Released/Denied:
Document Type: COMMENT Total Pages: 1
File Number/Community: DA/FCC Number:
Filed on Behalf of: Richard L. Tannehill
Filed By:
Attorney/Author Name: Document Date:
Complete Mailing Address:
5410 W. diana Ave.
Glendale, AZ 85302 -4870
Brief Comment
I agree with the ARRL petition for regulation by bandwidth, and
support it, with one major exception.
The League claims that their plan does not favor one mode over
another. Not true. It favors AM-DSB
operators. It would allow for 9 KHz AM modulation, in bands which
otherwise are limited to 3.5 KHz.
These include the lower HF bands, which are quite crowded at times.
The solution is simply to
restrict AM-DSB to above 28.5 MHz. (10 meters & above) Amateurs and
the league have been
upset in the past over wide-SSB modulation, meant to improve audio
quality. AM is no different from
this. It is an old modulation that adds nothing to advancing the
technological art, and should be
confined to bands where there is ample spectrum available.
Richard L. Tannehill P.E. - W7RT
ARRL Life Member
(45-years amateur licensed)
Who does he think invented Class D/E? Engineers that were -not- hams?
I'm not sure what the percentage is, but I think it's actually fairly
high, that the number station engineers (for lack of a better term, in
today's times) who do work in radio/broadcasting, are also ham radio
operators.
In 1996, I was introduced to a Class E 40m amplifier, that looks no
bigger (if not smaller) than the two transistor, solid-state amp I use
for mobile operation, and the Class E amp used 1 device. 12v @ 50amps,
I think, for something like 500w CW.
In the late 1990's, John/WA5BXO was using solid-state circuitry to
directly drive the grids of a Class B modulator. Now, that was some
radical thinking, and the old timers let him know about it... that is,
until they heard it. They were convinced.
For someone to say that there's no advancement in the 'old modulation',
with "nothing to advancing the technological art", my reply is "go back
and do your homework, before such a blanket statement is made.
45 years as a ham... probably got a ticket when he around 20'ish..
I'm reminded of a new-classic, favorite, one-liner...
"Why is it that the narrowest of minds,
are found in the fattest of heads?"
---
73 = Best Regards,
-Geoff/W5OMR
