Transmission line stuff 5
Richard Clark wrote in
:
Look at your lamp zip cord - close enough.
There is an interesting example.
K8ZOA published a characterisation of ZIP line some years ago in this
groupd, and Zo is approximately 100 ohms.
Considering a half wave of ZIP cord with a load of 100+j0 at 14MHz, loss is
around 1dB.
Now, using N7WS's characterisation of Wireman 551 ladder line, again a half
wave at 14MHz, smaller conductors, wider spacing, longer, Zo=400, higher
VSWR, the loss with a load of 100+j0 at 14MHz, loss is around 0.14dB.
Owen
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