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To: rsgb_lf_group@blacksheep.org
From: "M.J.Powell" <mike@pickmere.demon.co.uk>
Subject: Re: LF: Re: Bad experience with loop ant
References: <000e01bf5ba5$6bc57f60$60d725c3@194.95.193.10.fen.baynet.de><387ABC73.EB1AE1BB@qsl.net>
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In message <387ABC73.EB1AE1BB@qsl.net>, Heinz Schnait <oe5eep@qsl.net>
writes
>Hello all,
>
>Walter Staubach wrote:
>
>> ....After realizing
>> my loop I found out, that the capacity of the loop itself between the turns
>> was already 800pF. That generates losses. Do you know that capacity in your
>> loop?
>
>How can one measure the capacitance of the loop itself? Any suggestions?

Measure the Inductance. L

Add a known C.

Measure resonant frequency.

Calculate what it should be from L and C.

Difference is due to C of loop!

Mike

-- 
M.J.Powell