M
Mike Monett
Guest
Test. Please Ignore
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Pooh Bear wrote:
The formula for calculating power decibels is:
Po
G = 10 log10 ----
Pi
Where
G = Gain in dB
Po = Power output from the device
Pi = Power input to the device
The formula for calculating voltage decibels is:
Vo
G = 20 log10 ----
Vi
Where
G = Gain in dB
Vo = Voltage output from the device
Vi = Voltage input to the device
Or. if you don't believe me, you can read this tutorial:
[http://home.comcast.net/~zcomco/decibel_1.htm]
or this one:
[http://et.nmsu.edu/~etti/fall96/communications/db/db.html]
sci.electronics.design, the two of you can have your own little
flame war without bothering me with the personal attacks that you
think are an acceptable alternative to having a civil discussion on
the topic at hand. Maybe later in life, after you have learned to
read, write, spell, and count, you will have more success. True,
these are rudimentary skills that many of us "normal" people take
for granted that everyone has an easy time of mastering. But we
sometimes forget that there are "challenged" persons in this world
who find these things to be difficult. If I had known that this was
true in your case then I would have never have exposed myself to
what you wrote. It just wouldn't have been "right." Sort of like
parking in a handicap space. I wish you the best of luck in the
emotional, and social struggles that seem to be placing such a
demand on you.
*plonk*
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Mike Monett
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Pooh Bear wrote:
Sigh. Another ineducable newsgroup participant.Guy Macon wrote:
Pooh Bear wrote:
Guy Macon wrote:
Back to the topic, 3dB is also the amount of drop you get when
you have the output impedance and the input impedance matched,
which was common in the days of transformer-balanced audio
lines.
Nooooo ! That's a 6dB drop.
Yeeeeees! That's a 3dB drop.
No it isn't ! See Ohms Law !
The formula for calculating power decibels is:
Po
G = 10 log10 ----
Pi
Where
G = Gain in dB
Po = Power output from the device
Pi = Power input to the device
The formula for calculating voltage decibels is:
Vo
G = 20 log10 ----
Vi
Where
G = Gain in dB
Vo = Voltage output from the device
Vi = Voltage input to the device
Or. if you don't believe me, you can read this tutorial:
[http://home.comcast.net/~zcomco/decibel_1.htm]
or this one:
[http://et.nmsu.edu/~etti/fall96/communications/db/db.html]
You can join Aylward in my killfile. Assuming that he still posts to
sci.electronics.design, the two of you can have your own little
flame war without bothering me with the personal attacks that you
think are an acceptable alternative to having a civil discussion on
the topic at hand. Maybe later in life, after you have learned to
read, write, spell, and count, you will have more success. True,
these are rudimentary skills that many of us "normal" people take
for granted that everyone has an easy time of mastering. But we
sometimes forget that there are "challenged" persons in this world
who find these things to be difficult. If I had known that this was
true in your case then I would have never have exposed myself to
what you wrote. It just wouldn't have been "right." Sort of like
parking in a handicap space. I wish you the best of luck in the
emotional, and social struggles that seem to be placing such a
demand on you.
*plonk*
--------------------------------------------------------------------
Mike Monett