[TowerTalk] SWR and voltage

Steve Hunt steve at karinya.net
Mon Sep 26 11:42:48 EDT 2016


Steve,

Those were rms figures of course; if you need peak values, multiply by 1.414

Steve G3TXQ



On 26/09/2016 16:38, Steve Hunt wrote:
> Steve,
>
> Firstly your figures are out for the 50 Ohm system; the figures are 
> 273.9V and 5.5A
>
> Once the SWR is no longer 1:1, there is an infinite range of 
> impedances for any particular SWR, and therefore an infinite range of 
> voltages and currents for a dissipation of 1500W. However, here are 
> the upper and lower limits:
>
> 2:1 SWR: 387.3V / 3.9A thru 193.6V / 7.7A
>
> 3:1 SWR: 474.3V / 3.2A thru 158.1V / 9.5A
>
> Steve G3TXQ
>



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