[BC] Overcrowding & noise floor on AM

[WFIFeng@aol.com]

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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