On 29 Sep 2006 16:24:06 -0700, "Telstar Electronics"
wrote in
.com:

wrote:
This in reality means that a 100% single tone modulated AM signal
can reach PEP values of around 165 watts. So that his amp should be
rated around 40 watts carrier on AM and around 160 watts PEP on
sideband.

In properly-adjusted AM, average power at 100% modulation = 1.5 X
resting carrier power, and PEP = 4 X resting carrier power

This was taken from http://www.ab4oj.com/peptest.html

which also agrees with
http://www.rf-amplifiers.com/index.php?topic=peak_power

Nice try...


Oh for crying out loud..... you can't even read a simple graph? Here's
the transistor's power curve for everyone to see:

http://www.icehouse.net/wirenut/2879curv.jpg

Let's say you start with a 4 watt carrier (multiply all the numbers in
the graph by 2 since you are using two transistors). The transistors
will amplify that carrier to 120 watts. Now modulate the carrier 100%
so your input power is 16 watts PEP. If the response was linear then
the output power would be 4 * 120 watts, or 480 watts. Alas, the graph
says different. VERY different. Your output power is only about 250
watts, or about HALF of your fabricated PEP figures. Crank up the
supply voltage and you MIGHT reach 400, but then you have some real
power dissipation problems that I pointed out in the other post and
you are ignoring, just like every other post where I have proven you
both wrong and ignorant.... "LOL"!!!