[AMRadio] AM Power Level

[John E. Coleman]

Welcome Joe:
	What Mike says is 100% true.  You might want to look at this web
site it may clear things up as to why it is so cloudy. HI

http://www.qsl.net/wa5bxo/asyam/aam3.html

& 

http://www.qsl.net/wa5bxo/amplitude-modulation-and%20pep.htm

&

http://www.qsl.net/wa5bxo/all-about-modulation.htm



-----Original Message-----
From: amradio-admin at mailman.qth.net
[mailto:amradio-admin at mailman.qth.net] On Behalf Of N6DGY at kirtland.com
Sent: Sunday, May 18, 2003 12:15 PM
To: amradio at mailman.qth.net
Subject: [AMRadio] AM Power Level

I'm interested to know if I understand the newer FCC power guidelines
correctly and 
how peak power on AM is measured.  The FCC now stipulates 1500 watts
peak 
output.  Am I correct in understanding that in AM, the peak output at
100% 
modulation is four times the carrier level?  Does this mean that if one
is to be strictly 
within the FCC rules, you can have a carrier of only 375 watts in the AM
mode?

My proposed transmitter will be capable of a unmodulated 600 watt
carrier.  
Fortunately, it appears to be a simple matter to reduce power in a
Class-E amp just 
by lowering the supply / modulation voltage to the MOSFET drains.

Any help in furthering my understanding is appreciated.

Thanks!

73, 
Joe
N6DGY


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