[Amps] High SWR

[Jeff Carter]

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