Thanks for the good explanation. I actually had not
thought of connecting the noise bridge in exactly that way
before and I will have to try that. I have put it on
random-length wire antennas like the guy wires on my tower and
noted the dips in the noise, but hadn't thought about keeping it
connected on a regular basis and using it like that. It makes
all the sense in the world.

Martin WB5AGZ

"Bob, K8LR" writes:
> Jim,
> 
> The noise bridge allows you to tune your tuner for the lowest swr with out
> transmitting on the air.  I first peak my external tuner for max signal 
> and
> then turn on the noise bridge to null out the noise for the best swr.
> Sometimes the settings between max received signal are the same as the
> lowest swr point, but most of the time, the settings are slightly 
> different.