Hi
- Here's a .gif copy of the "dB" wheel .
- One may notice that the function of, 10log Z1/Z2 ( or R2/R1 ) suggests that a person should be able to directly calculate ( say ) pad attenuation from a set of given impedances.
(i) I can't make this basic formula work for me. I've been struggling with this for a while but to no avail. I'm forced to measure real-time voltage drops, which while accurate , is a real PITA with it's own challenges .
(ii) Can anyone help ?
If so , please demonstrate by example, showing the dB drop for a 13.5 ohm resistor strapped across an 8 ohm load / along with the presence of a 2 ohm buildout resistor .
Thanks <. Earl K