Topband: New MFJ 259C available
jim at audiosystemsgroup.com
Tue Mar 4 19:39:41 EST 2014
On 3/4/2014 4:10 PM, Mike Waters wrote:
> That's what I was thinking. I don't understand why we have to use
> microscopes and scalpels for 1.8 MHz.
It all depends on the degree of precision that you need for whatever
project you happen to be working on. I work all bands between 1.8 MHz
and 900 MHz, and I occasionally need test equipment for all of them.
Also, errors can add with either a positive or negative sign, as a phase
angle. Impedance measurements with a vector analyzer are done with a
mathematical equation that can be the difference of numbers that are
nearly equal, so a small error in the raw data can cause a greater error
in the measured Z.
73, Jim K9YC
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