>
>Okay, I'll bite, Rich. I take the L-network, parallel the L and C, and then
>measure the resonant frequency using a GDO. I then re-configure the
>network back into an L and connect it to the load. If I understand what
>you have claimed (correct me if I am wrong), the input impedance of
>the L-network at the resonant frequency (determined above) will be
>a short cicuit even when the load is attached.
No
>If this is what you are
>claiming, then I respectfully disagree. If this is not what you are claiming,
>then please elaborate.
>
If XC = XL at the operating freq., the Z-transformation is infinite. The
farther apart the reactances are, the lower the Z step-up/step-down.
cheers, Mike
>----- Original Message -----
>From: "measures" <2@vc.net>
>To: "Michael Tope" <W4EF@dellroy.com>; "AMPS" <amps@contesting.com>
>Sent: Sunday, April 22, 2001 8:55 PM
>Subject: Re: [AMPS] basic question about dipping the plate
>
>
>> >
>> >Hi Rich,
>> >
>> >Since a dipmeter doesn't measure impedance, how could I use one to prove
>that
>> >the input impedance of an L-network at resonance doesn't look like a dead
>> >short circuit?
>> >
>> ? The series L and C must be paralled to measure resonance.
>>
>> cheers, Mike.
>> >
>> >> >
>> >> >I believe that is only true if there is no load connected across the
>shunt
>> >> >side of the L-network.
>> >> >In that case the L-network simply becomes a hi-q series resonant trap
to
>> >> >ground (e.g. a near
>> >> >dead short). Connect a finite resistive load across the shunt element
and
>
>> >> >that is no longer true.
>> >>
>> >> ? Try proving this with a dipmeter, Mike.
>> >>
>> >
>> >
>> >
>> >--
>> >FAQ on WWW: http://www.contesting.com/FAQ/amps
>> >Submissions: amps@contesting.com
>> >Administrative requests: amps-REQUEST@contesting.com
>> >Problems: owner-amps@contesting.com
>> >
>> >
>>
>>
>> - Rich..., 805.386.3734, www.vcnet.com/measures.
>> end
>>
>
>
>--
>FAQ on WWW: http://www.contesting.com/FAQ/amps
>Submissions: amps@contesting.com
>Administrative requests: amps-REQUEST@contesting.com
>Problems: owner-amps@contesting.com
>
>
- Rich..., 805.386.3734, www.vcnet.com/measures.
end
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