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There is no mathematical notation for "RMS POWER".
If you calculate voltage from average power and load resistance you get RMS
volts.
Like wise if you calculate current from average power you get RMS amps.
Look at the definition of RMS voltage or current. Put it into the
equation for
Power. What you get is the formula for Average Power!!!!!
This RMS power stuff started in the 60's with the stereo equipment
manufacturers.
They invented "RMS Music Power". This is equivalent to PEP, low% duty
cycle power.
It allowed them to come up with large wattage ratings for short burst of
audio. This was necessary
due to the fact that their equipment had weak power supplies and low power
dissipation capability.
RMS power is a meaningless term.
73
Bill wa4lav
>X-Originating-IP: [12.41.226.194]
>From: "Billy Ward" <billydeanward@hotmail.com>
>To: amps@contesting.com
>Subject: [AMPS] RMS Power
To: <amps@contesting.com>
>Date: Thu, 28 Jun 2001 05:32:16 -0000
>X-OriginalArrivalTime: 28 Jun 2001 05:32:16.0893 (UTC)
>FILETIME=[B175B2D0:01C0FF93]
>Sender: owner-amps@contesting.com
>X-Sponsor: W4AN, KM3T, N5KO & AD1C
>
>
>[WC6W]
>The Bird 43 (without a peak reading module) is an average reading
>meter.
>
>[Billy]
>I thought that the Bird 43 was an RMS meter without the peak reading
>module. RMS and average are not the same?
>
>Billy
>
>_________________________________________________________________
>Get your FREE download of MSN Explorer at http://explorer.msn.com
>
>
>--
>FAQ on WWW: http://www.contesting.com/FAQ/amps
>Submissions: amps@contesting.com
>Administrative requests: amps-REQUEST@contesting.com
>Problems: owner-amps@contesting.com
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<html>
<x-tab> </x-tab>There is
no mathematical notation for "RMS POWER".<br>
If you calculate voltage from <b>average power</b> and load resistance
you get RMS volts.<br>
Like wise if you calculate current from <b>average power</b> you get RMS
amps.<br>
<x-tab> </x-tab>Look at the
definition of RMS voltage or current. Put it into the equation for <br>
Power. What you get is the formula for Average Power!!!!!<br>
This RMS power stuff started in the 60's with the stereo equipment
manufacturers.<br>
They invented "RMS Music Power". This is equivalent
to PEP, low% duty cycle power.<br>
It allowed them to come up with large wattage ratings for short burst of
audio. This was necessary<br>
due to the fact that their equipment had weak power supplies and low
power dissipation capability.<br>
<br>
RMS power is a meaningless term.<br>
<br>
<br>
73<br>
Bill wa4lav<br>
<br>
<br>
<br>
<br>
<br>
<blockquote type=cite class=cite cite>X-Originating-IP:
[12.41.226.194]<br>
From: "Billy Ward" <billydeanward@hotmail.com><br>
To: amps@contesting.com<br>
Subject: [AMPS] RMS Power<br>
To: <amps@contesting.com>
Date: Thu, 28 Jun 2001 05:32:16 -0000<br>
X-OriginalArrivalTime: 28 Jun 2001 05:32:16.0893 (UTC)
FILETIME=[B175B2D0:01C0FF93]<br>
Sender: owner-amps@contesting.com<br>
X-Sponsor: W4AN, KM3T, N5KO & AD1C<br>
<br>
<br>
[WC6W]<br>
The Bird 43 (without a peak reading module) is an average reading<br>
meter.<br>
<br>
[Billy]<br>
I thought that the Bird 43 was an RMS meter without the peak reading
module. RMS and average are not the same?<br>
<br>
Billy<br>
<br>
_________________________________________________________________<br>
Get your FREE download of MSN Explorer at http://explorer.msn.com<br>
<br>
<br>
--<br>
FAQ on
WWW:
http://www.contesting.com/FAQ/amps<br>
Submissions:
amps@contesting.com<br>
Administrative requests: amps-REQUEST@contesting.com<br>
Problems:
owner-amps@contesting.com<br>
</blockquote></html>
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