[BC] Assistance with a tall tower
donroden at hiwaay.net
donroden at hiwaay.net
Thu Nov 18 19:02:58 CST 2010
Thanks All !!
I am familiar with standard 1/4 wave antennas at 25-32 ohms, so when I
grabbed the meter shorting plug I heard a "psssssss" ........ Ohhhhh
dats gonna hurt...
finger tip a little too close to the brass ( and that was at 100 watts )
LOL !!!! That high impedance reaches out.
Don R
Quoting harold stanton <k5gvr at hotmail.com>:
> Don,
> What Richard said. That's what I guesstimated as well.
> It is not unusual to make a "two-step" impedance transformation with
> that large of a difference in points.
> Why you usually find a PI-L in a tube type xmtr.
> Now what we don't know, is the median impedance chosen by
> the creator. Geometric mean or just a convenient impedance choice.
> Measurements will most likely be required, if you don't figure out
> just what's breaking down. (Arc across inside of feed bowl maybe?)
>
> Harold
>
>
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