LinkBack Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
  #17   Report Post  
Old June 17th 07, 08:29 PM posted to rec.radio.amateur.moderated
external usenet poster
 
First recorded activity by RadioBanter: Jan 2007
Posts: 300
Default A plea for civility

On Sun, 17 Jun 2007 08:50:33 EDT, wrote:

In the bad old days, 27 MHz was an ISM band, reserved for things like
diathermy and heat-sealing machines. I remember one case, here in
Philadelphia, where a heat-sealing factory's machines put a strong
harmonic right on the Philadelphia Police dispatcher channel.


The major problem with the 27 MHz heat sealers was the 4th harmonic in
the aviation bands. The local FCC engineer in charge had the legal
authority to shut the plant down immediately without a warning or
hearing and the plant could not resume operation until it certified
by measurement and an FAA overflight that the IX was corrected. The
necessary shielding to accomplish compliance is the reason that the
characteristic "heat sealer buzz" is no longer a problem on 11 or 10
meters.

Of course FCC was all over them in a big way. But imagine if FCC had
dragged its feet...


Even today, FAA complaints take first priority, but in reality that
was a different FCC... g

In my first year with the agency we went out on about a half-dozen
such complaints in the San Francisco area, but 30 years later when I
retired we hadn't received such a complaint in many years.
--

73 de K2ASP - Phil Kane

From a Clearing in the Silicon Forest

Beaverton (Washington County) Oregon

e-mail: k2asp [at] arrl [dot] net

 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
I want more (Nominations for Civility Awards) Nth Complexity Policy 0 September 5th 06 03:58 PM
I want more (Nominations for Civility Awards) Nth Complexity CB 0 September 5th 06 03:58 PM
Nominations so far for Civility Awards Nth Complexity Policy 0 September 2nd 06 10:06 PM
Nominations so far for Civility Awards Nth Complexity CB 0 September 2nd 06 10:06 PM
civility please? dk Shortwave 1 January 14th 06 03:27 AM


All times are GMT +1. The time now is 01:25 PM.

Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004-2025 RadioBanter.
The comments are property of their posters.
 

About Us

"It's about Radio"

 

Copyright © 2017