[BC] Overcrowding & noise floor on AM

Rob Atkinson ranchorobbo
Mon Mar 19 17:27:10 CDT 2007


yeah willie, but a good AM rx with a decent rx loop such as GE Superadio 
will surprise you.  the guy IDs every 10 minutes, tx only voice; no music, 
and is there running things.  He's totally legal.  Baxter got into trouble 
because he was letting his junk go on automatic pilot.  He was also selling 
advertizing or memberships in his "association" on his "bulletins."  Not to 
get into a ham radio argument, but if we're going to go after the guy in 
Missouri, who technically isn't doing anything wrong, then let's start by 
going after W1AW so ARRL can quit wasting thousands of dollars every year 
transmitting stuff no one listens to such as cw bulletins...do you know 
anyone who still gets ham radio news by copying a cw or phone bulletin from 
W1AW with their train schedule of transmissions?

rob a.


From: WFIFeng at aol.com
Reply-To: Broadcasters' Mailing List <broadcast at radiolists.net>
To: broadcast at radiolists.net
Subject: Re: [BC] Overcrowding & noise floor on AM
Date: Mon, 19 Mar 2007 14:48:23 EDT

In a message dated 03/19/2007 1:31:40 PM Eastern Daylight Time,
ranchorobbo at hotmail.com writes:

 > Because no one else tries to use that frequency in north
 >  america while he's operating, the effect is similar to a clear channel.
 >  with only a 90 degree stick and 375 w. he's clearly receivable all over 
N.
 >  America.  Gave me an idea of what it used to be like to run 50 kw on a
 >  genuinely clear channel back when they were clear.  I think the guy's 
call
 >  sign is wa0rcr.

Remember, though, that you're not relying upon a 2 1/2' "whip" antenna on a
car, or a 1/2" diameter "loopstick" antenna to hear it. You're using a
"longwire" (or even a proper dipole) to pick up that signal. Naturally, the 
range is
going to seem "larger than life". Many radio receivers back in the early 
years
also used outdoor antennas. You also didn't have RFI being generated by all
kinds of things, either.

As for "broadcasting" on Ham frequencies for 12 hours at a clip... that is
strictly prohibited in Part 97. I think the FCC already made it's case that 
this
is not going to be tolerated. Google K1MAN and you'll find dozens of 
entries.
(Many of them utterly vilifying that clown, and rightfully so.) His license
was not renewed because of his broadcasting activities, and despite his
attempts to fight it in court, he hasn't been back on the air in many 
months, now. If
WA0RCR doesn't want to get the same kind of treatment, he will have to stop
his "Ham broadcasting", as well.

Still, it is quite amazing to see what kind of range can be reached with 
less
than 100 watts on AM. My homebrew AM transmitter is only 55 watts into a far
less than optimal antenna, and I have no problem communicating from CT all 
the
way to Ohio, Upstate NY, Canada, Maine and on down the East coast into VA.
Good receivers and antennas on their end certainly contribute to this 
success. :)

Willie...
N1NKM

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