Rob,
Why use 100ft of coax on a 1.5ft diameter form, when 3ft or so of coax
on a ferrite core would give you much higher CM impedance than that; and
better still, it would be Resistive rather than Reactive?
73,
Steve G3TXQ
On 18/11/2010 18:21, Rob Atkinson wrote:
> I once wound 100' of 213 on a small plastic garbage can 1.5 feet diameter
> and used it as a c.m. choke on 160. I calculated the Xl was over 2000 ohms
> (I don't remember the exact figure) and the diameter and width of the coil
> were about equal (which gives the highest value for a given length of
> conductor). I am unconvinced that this is not a good solution.
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