[Lowfer] How do I....

[riese-k3djc at juno.com]

may work to put an LED across the feed point which should light up at
resonance

Bob K3DJC


On Fri, 21 Feb 2014 22:56:29 -0500 "Michael Sapp" <wa3tts at verizon.net>
writes:
> J.B. I would think you at least need a diode detector and sweep the 
> loop 
> with the audio generator (assuming it goes up to a few hundred kHz) 
> looking 
> for the voltage change at resonance.....
> 
> I'd fax you my dip meter but I have not figured out the quantum 
> entanglement 
> interface for my kitchen microwave oven......
> 
> Mike wa3tts
> 
> ----- Original Message ----- 
> From: "John Bruce McCreath" <weazle at hurontel.on.ca>
> To: "Discussion of the Lowfer (US, European, &amp; UK) and MedFer 
> bands" 
> <lowfer at mailman.qth.net>
> Sent: Friday, February 21, 2014 10:43 PM
> Subject: [Lowfer] How do I....
> 
> 
> > With nothing more than an audio signal generator, an LCR meter and 
> the 
> > physical parameters
> > of the loop in question, how do I measure its self capacitance and 
> 
> > self-resonant frequency?
> > The loop is 1 meter square and has 25 turns of what once was an 
> old 
> > printer cable, complete
> > with a drain wire and foil shielding.  Yes, I made a break in the 
> drain 
> > wire and foil at the top
> > centre of the loop, directly opposite to the feed point.  It 
> measures 1.8 
> > mH. of inductance.
> > I did a Google search on the subject, but most of the sites 
> mentioned 
> > using a 'scope.
> >
> > 73, J.B., VE3EAR
> >
> > LowFER Beacon "EAR"
> > 188.830 kHz. QRSS30
> > EN93dr
> >
> >
> >
> >
> >
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