Home > Archive > Electrical Engineering > June 2007 > Re: AM radio: 20 KHz sine-wave modulator signal present on an astronomically-low frequency carrier









You are viewing an archived Text-only version of the thread. To view this thread in it's original format and/or if you want to reply to this thread please [click here]

 

Author Re: AM radio: 20 KHz sine-wave modulator signal present on an astronomically-low frequency carrier
jimp@specsol.spam.sux.com

2007-06-30, 9:25 pm

In sci.physics.electromag Radium <glucegen1@gmail.com> wrote:
> On Jun 30, 1:35 pm, j...@specsol.spam.sux.com wrote:


[color=darkred]
> Huh?


> Usually amplitude of any signal is determined by the power of the
> signal. Power is usually measured in watts.


Amplitude is measured in Volts, power is power.

> What SI unit is the amplitude of an AM modulator signal measured in?


Percentage of modulation also called the modulation index.

How many times do you have to be told?

> BTW, I used W/M^2 is because W/M^2 is used on
> http://www.glenbrook.k12.il.us/GBSS...und/u11l2b.html
> which states that 1 X [10^-6] Watts-per-m^2 is about the loudness of a
> "normal conversation" according to the above link.


So you don't understand how to apply what you read.

That isn't unexpected.

> I expected an audio-frequency modulator signal of 20 KHz on an AM
> radio wave to be measured analogously.


You expect wrong because you are a babbling idiot.

You've been given links several times that explain AM modulation.

--
Jim Pennino

Remove .spam.sux to reply.
LinkBot





Other archives available: Cellular phones topics archive | Web Design forum archive | Software help archive | Hardware reviews archive | Programming topics archive

Copyright 2004 - 2008 homeownerschat.com