[Amps] B&W 852 Impedance Measurements

[Jim Brown]

On Thu, 3 Jul 2008 11:42:06 -0400, Bob Maser wrote:

>My measurements were made on a AADE unit which has always been very 
>accurate.  

First, I have no idea what an AADE unit is. Second, I don't know 
what a B&W 852 is either, but since you're measuring inductance, I'm 
guessing its a switched tapped inductor. 

Third, all of your measurements are low by 25-35%, indicating the 
possibility of a systemic error (like a voltmeter that's off by 
30%). 

Fourth, ALL measurements are subject to the limitations of the test 
setup. What you're measuring are fairly low impedances at the 
frequency of measurement -- on the order of 180 ohms -- so you 
should get "in the ballpark" results from a reflection-based 
analyzer (like most antenna analyzers). Perhaps try to borrow one of 
these and see what it tells you. 

73,

Jim K9YC