[K3PZN-List] AM and FM

[Kyle Thornton]

Ok so I think I got that basically when you modulate an AM signal your actually creating a duplicate of the carrier and side bands so essentially the whole signal and then when you transmit your power is being amplified due to the way the signal is being modulated? I'll have to read that section again but it was really confusing to me. FM I think I got down good. 
Kyle 
73 
KC3FMP 

> On Feb 28, 2016, at 10:11 PM, Scott, KB3JQQ via K3PZN-List <k3pzn-list at mailman.qth.net> wrote:
> 
> AM is a mixing process. You add 50% audio to your carrier andget the unchanged carrier and 2 mirror image sidebands with25% of the modulation power. Average, you get 150% more powerthen unmodulated but 400% more in peak power. That's why a 100watt radio only has 25 watts of AM. When you add 50% more voltageto a fixed resistance (your antenna) you get 50% more current,so it squares at full modulation since power is voltage X current.
> 
>      From: Kyle Thornton <kyle.3599 at outlook.com>
> To: k3pzn-list at mailman.qth.net 
> Sent: Sunday, February 28, 2016 10:04 PM
> Subject: [K3PZN-List] AM and FM
> 
> Hi all,
> I was reading though the general class license book and came across how AM and FM work. I haven't been on the radio lately cause of work but I can't quite grasp how AM is modulated. I think I have FM down as when you modulate the signal you're modulating the frequency so you get clearer sound but less range. This is probably something that was gone over in the tech book but I don't remember it. 
> Kyle 
> 73 
> KC3FMP 
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