[TowerTalk] Measurement errors and power line taps. Was, AL-80 Power Taps...

[James M. Daly]

I do apologies for being off-topic, my only excuse is
to claim ignorance and beg everyones pardon.

For the record my meter claims an accuracy of +/- 2%
on VAC.

Peace
James - AD1L

--- Jim Jarvis wrote:

> Have privately commented to AD1L that I would go to
> the
> middle tap, to start.  The 240v tap is the most
> aggressive,
> resulting in the highest Ep & Eg.  
> 
> While this isn't relevant to antennas, the
> discussion IS relevant 
> to measurement, and there is a comment that bears
> making.
> 
> The DMM he's using probably has an AC accuracy of
> +/- 3-5%.
> That is, +/- 7-12V error @ 240V.  We're discussing
> power grid variations
> of between 0.8 and 3%....  Anybody see a disconnect
> here?
> 
> N2EA
> Jim Jarvis, President
> The Morse Group, LLC



       
____________________________________________________________________________________Ready for the edge of your seat? 
Check out tonight's top picks on Yahoo! TV. 
http://tv.yahoo.com/