[Amps] Re: [Amps] Re: [Amps] Re: [Amps] Re: [Amps] Re: [ Amps] Bird® 43 Manual

[w8ron@stratos.net]

> > No.  Watt meters that hams and most engineers use at RF measure
either
> > voltage or Current.  They do not measure *power*.  Given the
voltage or
> > current, analog meters use a graphical conversion (called a meter
scale) to
> > equivalent power given under the assumption of a matched
> > termination.  Digital meters also perform a conversion in
firmware.  None
> > of these devices measure *power*.
>
> My example is relevant without the need of the Bird wattmeter.  I
fully accept the fact that the directional coupler samples RF
> voltage.  I'll respond to you as I did with Steve.  Namely, in the
absence of a load on a loss-less line, any and all reflected
> power is being absorbed by the fixed-impedance source (i.e.,
broadband PA).
>
> If reflected power is not absorbed by the source, where is absorbed?
>
> -Paul, W9AC
>
Hi Paul.
You statement is correct if the line is defined as lossless.
---
Ron

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