My apologies... I misses the "V" after the 70 so the
output of the amp/generator is a 70V pulse with a
width of 20nS every 480nS. This means that the period
is 500nS and a duty cycle around of 0.6%.
I was afraid you will mention a calorimeter :( It
seems tedious and messy :) But if there are no
alternatives I'll do this to.
Is there any derating formula for a Power/SWR meter
from CW to small duty cycle Pulse? I looked on
internet but I had perhaps the wrong key-words :(
Sincerely,
N2NNU
--- Bill Fuqua <wlfuqu00@uky.edu> wrote:
> 20ns x 70 =1400 ns
> every 500 ns?
>
> Seems to me that the easiest way would be to
> construct a tuner and a 50 ohm dummy load with
> a thermometer.
>
> Tune for max dummy load temp. and then measure the
> impedance of the
> tuner-dummy-dummy load.
> Change the sign of the j ( imaginary) component and
> you have it.
>
>
>
>
>
> At 06:44 AM 9/12/2007 -0400, bumerang boom wrote:
> >Hello, one and all.
> >I need to characterize the output an unusual AMP.
> It
> >outputs a 20nS 70Square pulse every 500nS.
> >I would like to measure it's output complex
> impedance
> >but
> >I am not sure if the usual equipment like an
> antenna
> >tuner and a SWR meter will indicate correct values.
> >
> >Can any one help with ideas in the test bed
> >construction?
> >Any help will be greatly appreciated.
> >
> >N2NNU
> >
> >
> >
>
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