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Pads (L-pads, T-pads, pi-pads, et.al.) are used for AC signals in the AF (audio) range and are not limited to RF applications. This article appears to be too narowly scoped.
The article says "The voltage transfer function, A, is,
While the inverse of this is the loss, L, of the attenuator,
The value of attenuation is normally marked on the attenuator as its loss, LdB, in decibels (dB). The relationship with L is;
Popular values of attenuator are 3dB, 6dB, 10dB, 20dB and 40dB.
"
I think that there is a contradiction there. If L = Vout/Vin then L < 1 and 20 log (L) < 0 which is inconsistant with popular values being positive numbers.
With attenuators, I expect gain to be less than 1 and loss to be greater than 1 and 20 log (L) to be positive.
Naturally then, if A is the inverse of L then the definition of A needs be inverted also.
So, I would change this to
and
Constant314 ( talk) 00:50, 15 December 2010 (UTC)
Sources aren't consistent, but the hyphen makes no sense. How about we change it to just Π pad, parallel to L pad? Dicklyon ( talk) 02:13, 5 January 2011 (UTC)
The result of the move request was: page moved. SpinningSpark 00:31, 7 January 2011 (UTC)
Π-pad →
Π pad — The noun form of a compound does not generally carry a hyphen. To make this article consistent with
L pad and
T pad, we should move it. Sources are mixed on this, but nobody has objected to my proposal (section above on article talk page). But
Π pad is on the
MediaWiki_talk:Titleblacklist, so I wasn't able to move it. --
Dicklyon (
talk) 04:00, 6 January 2011 (UTC)
This article is rated Start-class on Wikipedia's
content assessment scale. It is of interest to the following WikiProjects: | |||||||||||
|
Pads (L-pads, T-pads, pi-pads, et.al.) are used for AC signals in the AF (audio) range and are not limited to RF applications. This article appears to be too narowly scoped.
The article says "The voltage transfer function, A, is,
While the inverse of this is the loss, L, of the attenuator,
The value of attenuation is normally marked on the attenuator as its loss, LdB, in decibels (dB). The relationship with L is;
Popular values of attenuator are 3dB, 6dB, 10dB, 20dB and 40dB.
"
I think that there is a contradiction there. If L = Vout/Vin then L < 1 and 20 log (L) < 0 which is inconsistant with popular values being positive numbers.
With attenuators, I expect gain to be less than 1 and loss to be greater than 1 and 20 log (L) to be positive.
Naturally then, if A is the inverse of L then the definition of A needs be inverted also.
So, I would change this to
and
Constant314 ( talk) 00:50, 15 December 2010 (UTC)
Sources aren't consistent, but the hyphen makes no sense. How about we change it to just Π pad, parallel to L pad? Dicklyon ( talk) 02:13, 5 January 2011 (UTC)
The result of the move request was: page moved. SpinningSpark 00:31, 7 January 2011 (UTC)
Π-pad →
Π pad — The noun form of a compound does not generally carry a hyphen. To make this article consistent with
L pad and
T pad, we should move it. Sources are mixed on this, but nobody has objected to my proposal (section above on article talk page). But
Π pad is on the
MediaWiki_talk:Titleblacklist, so I wasn't able to move it. --
Dicklyon (
talk) 04:00, 6 January 2011 (UTC)