2009/1/28 Nate Duehr <nate@natetech.com>:
> This is BY FAR the main reason most RF "people" learn and love dBm...
> calculating total system gain/loss, and or path losses, etc... becomes
> simple math, when expressed in dBm.
>
----snip
>
> Nate
>


Nate
I can also remember having to convert between output voltage in "emf"
(older Marconi instruments ?) and output voltage "pd" (HP & others).
The difference being the emf measurement is the open circuit voltage,
while the pd voltage is when terminated. i.e emf = 2 x pd in correctly
terminated systems or 6dB difference. Quite significant when measuring
receiver performance.

RP
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