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Old April 18th 09, 04:40 PM posted to rec.radio.amateur.antenna
Jerry[_5_] Jerry[_5_] is offline
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First recorded activity by RadioBanter: Jun 2008
Posts: 133
Default At resonant dipole with reactive characteristics.


"Calltrex" wrote in message
...

"Cecil Moore" wrote the message

the antenna must be reactive ! From your explanation at 180
degrees, why doesn't
current at the right side flip over then ? Should be.


When all the voltages and currents are either in phase or
180 degrees out of phase, the resulting impedance is purely
resistive. There is *no reactance* in an ideal resonant dipole!
--
73, Cecil, IEEE.


I agree that the antenna is a chain of different pure resistances. But
that
doesn't explain the asymmetric 'snapshot' here.
At the left side we see '+' voltage and '+' current and
at the right side we see '-' voltage and '+' current ! Why should it be
asymmetric?
When i put a car battery with the plus on a lamp i will see a minus
current ??



Hi Calltrex

Now I see your situation. When you want to see the current meter read
plus instead of minus, reverse the leads on the current meter. Then, when
the voltmeter reads plus, the current meter will also read plus.

Jerry KD6JDJ