[BC] Directional Antenna Proofs <SoM1GkY50>

[Cowboy]

On Friday 22 June 2012 02:54:52 pm Dave Dybas wrote:
> The only time I've experienced problems with "in-line" Impedance Bridge
> (OIB) readings was when I was measuring a "negative tower"....and then it
> was simply resolved by reversing the Input/Output leads on the Impedance
> Bridge.

 And then reverse the sign of the reactance.
 That would be correct.
 ( and can get real dicey when R approaches zero )

 Other signals of significant amplitude will cause false nulls.
 So will mis-tuning the tuning network in the detector.
 The give-a-way is that a complete null can't be found. 

 Under such circumstances, an idea of the expected
 reading ( even ball park ) will help substantially.

-- 
Cowboy