Re: [TowerTalk] RG11 Cable

[Dan Zimmerman N3OX <n3ox@n3ox.net>]

>
> By what math?  A 50 ohm (purely resistive) antenna is a 1.5:1 mismatch to
> 75 ohm coax (and an antenna that is 50 ohms but not resistive would be a
> mismatch to 50 ohm line). The SWR falls along the length of any real
> transmission line due to line loss,


The 1.5:1 SWR circle for lossless 75 ohm line intersects the real axis at 50
ohms and  112.5 ohms resistive.


112.5 ohms resistive is 2.25:1 50 ohm SWR when you transition back to a 50
ohm system
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