>
>> >>
>> >// Why not? Is the sharp dip I see on the dipmeter a pseudo-dip?
>> >
>> Certainly it's real. When you connect the two capacitors together at
>> each end, you make a series-resonant loop. Guessing at values, two
>> 1000pF caps, in series with a total of 8nH lead inductance + self
>> inductance, comes out at 80MHz.
>>
>> But dipping the two capacitors on their own tells you *nothing* about
>> their behavior in-circuit.
>
>I see the same old "grid dip meter tells all" argument is going on!
>
>Good luck Ian!
>
>Actually you can't tell a thing about whether it is a "good desirable
>dip" , something meaningless, or a potential problem with a grid dip
>meter. If you reconfigure the circuit in an attempt to find out what
>type of resonance you are dealing with, you almost always change
>the resonant frequency so much you can't tell where the hell the
>original resonance moved to.
>
>There are many much better devices, like cheap common antenna
>analyzers especially when used with small diodes or other RF
>detectors. They are much more likely to tell you if the resonance is
>a potential problem.
>
// Didn't Tom say that the dipper option for the MFJ antenna analyzer is
disfunctional?
- R. L. Measures, 805.386.3734,AG6K, www.vcnet.com/measures.
end
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