RMS TO PEP

[freecell]

"RMS Power describes the metrics used in the calculations."

no, RMS current and voltage describes the metrics or parameters used in the calculations. the term RMS Power is meaningless. it's Average Power derived by the mathematical solution of the RMS values of both current and voltage. the two terms are not interchangeable and are the cause of continual confusion.

furthermore, we don't modulate transmitters using periodical, symmetrically shaped signal sources and as such the human voice fits neither of those definitions when referenced to am and ssb transmitters.

the relationships are demonstrated clearly by the chart at the url i posted previously.

 

[ken white]

the relationships are demonstrated clearly by the chart at the url i posted previously.

Technically there is no such thing as taking the RMS value of power - I agree.

However, the prefix of RMS has been traditionally used to designate the metrics used in the calculation of power. So True Power, or Average Power, calculations are only correct when RMS values are used. If Average values, or Peak Values, for V or I are used then the resulting Power will be incorrect, hence the RMS prefix. Power is calculated using measuring devices and it is important to use the correct measurement type - metering circuits can be average, rms, and true rms, etc...

 

[ken white]

http://www.firecommunications.com/hlsos.html

I see you added my Average Power and PEP equations with some incremental results to your web page... Did you figure out how I derived them?

8)

 

[thetnhillbilly]

It doesn't seem like you guys are really in disagreement, except for terminology. Isn't this just a case of Freecell saying he doesn't condone the term RMS power and Ken saying that while it is not a technically correct term, it is the best descriptor available to get the point across with fewer words. Kind of like when people use the term "electricity" instead of "electrical energy." It is just easier and generally understood. Maybe we should come up with a different term that we can agree on. Any Suggestions?

 

[ken white]

It doesn't seem like you guys are really in disagreement, except for terminology. Isn't this just a case of Freecell saying he doesn't condone the term RMS power and Ken saying that while it is not a technically correct term, it is the best descriptor available to get the point across with fewer words. Kind of like when people use the term "electricity" instead of "electrical energy." It is just easier and generally understood. Maybe we should come up with a different term that we can agree on. Any Suggestions?

Yep...

 

[Damn Yankee]

It doesn't seem like you guys are really in disagreement, except for terminology. Isn't this just a case of Freecell saying he doesn't condone the term RMS power and Ken saying that while it is not a technically correct term, it is the best descriptor available to get the point across with fewer words. Kind of like when people use the term "electricity" instead of "electrical energy." It is just easier and generally understood. Maybe we should come up with a different term that we can agree on. Any Suggestions?

Yep...

[Exactly right!!
Its physics boys, you can't change it. Somebody smarter than us figured it out a while ago. After reading this entire post and finding it entertaining, I thought I'd share this cross reference/ calc. method derived for our convenience.

RMS=PEP

Where:
R = Restless endangerment factor
M= Mean temperature coefficient of last weeks tator salad
S= Speed of Dirt**

**there are times where the saddle point measurement technique of the dew point on Saturday 7.62AM can be substituted as deemed appropriate


/quote]

 

[lords]

wow ,I hope no one really figures out that all our books on electronics stuff are written wrong...Shhh , i didn't say this
Remember Pos ground

Can't rewrite whats in History now, can we!