[Lowfer] Return loss bridge questions.

[KD7JYK DM09]

I have a "return loss bridge".  Figure I could use it for analyzing
antennas.  I have various oscillators from Hz to many 10's of GHz, much more
than the bridge can handle, but I figure I can test most everything with it.

Input is obvious, also device under test, the "unknown", what I am not
familiar with is what do I use to read the output?  What do I put here?  A
Voltmeter?  RF detector of some sort?  Something to convert RF to Volts and 
look for the lowest reading/less return?

I'm just not familiar with thing at all!

Any info appreciated.

Kurt