Nothing brought home standing waves to me like a slotted line. I haven't seen
one of those since college, though.
You can look at all the simulations in the world, but actually seeing the
minimums and maximums on a line can't be beat for getting the concept
through. It's a shame that more folks didn't get to see those things.
Couldn't the average ham, especially those with enough engineering savvy to
build or work on amplifiers set up a Lecher Line apparatus? I'm not sure
what you'd use for a bulb nowadays that wouldn't affect the readings, though.
Maybe a regular bulb would be good enough for the concept.
Sounds like a good QST article, if somebody hasn't already done it.
Jeff/KD4RBG
On Thursday April 23 2009 14:02, you wrote:
> It used to be in the old days 'reflected' power was measured with lecher
> wires and a bulb so you could really 'see' the nodes on the transmission
> line with a meter it's more of a 'black box' and misconceptions arise
> I also use/used a slotted line for X-band measurements.
>
> - Scott
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