Attenuation

For the discussion of the sciences. Physics problems, chemistry equations, biology weirdness, it all goes here.

Moderators: gmalivuk, Moderators General, Prelates

Post Reply
User avatar
wst
Posts: 2602
Joined: Sat Nov 24, 2007 10:06 am UTC

Attenuation

Postby wst » Wed Mar 15, 2017 9:40 pm UTC

So I'm ok using these formulae to come up with ideal values for attenuator components for T-pad attenuators Source

Given desired attenuation (K) and input (or output) impedance (Z), to find R1, R2 (R1 and R2 are equal) and (eventually - I'll skip this for brevity and for "figure it out yourself!"satisfaction) R3.

Image

Is there enough information here, if I know the values of R1 (or R2) and Z, to be able to find out what K is?
Anything I said pre-2014 that you want to quote me on, just run it past me to check I still agree with myself.
Top
User avatar
Carmeister
Posts: 20
Joined: Fri Jan 24, 2014 5:10 am UTC

Re: Attenuation

Postby Carmeister » Thu Mar 16, 2017 12:19 am UTC

Image
Top
User avatar
wst
Posts: 2602
Joined: Sat Nov 24, 2007 10:06 am UTC

Re: Attenuation

Postby wst » Fri Mar 17, 2017 1:08 pm UTC

Sweet. I might've got to that if I'd walked away and come back but I'd got my head well and truly mixed up. Cheers.
Anything I said pre-2014 that you want to quote me on, just run it past me to check I still agree with myself.
Top
Post Reply

Return to “Science”

Who is online

Users browsing this forum: No registered users and 10 guests