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Re: LF: More EbNaut 137.777

To: [email protected]
Subject: Re: LF: More EbNaut 137.777
From: Markus Vester <[email protected]>
Date: Sat, 28 Nov 2015 11:47:55 -0500
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Ok Andy, you're right, I forgot the squares.
 
But then, citing your email from Nov 19:
 
> Re: LF: RE: Re: Antenna relays - multifilar Litz coil
>...
> So R becomes R/SQRT(2)
> Coil circulating current  will double,   so additional loss is 2 / SQRT(2)
...should 've been 2^2 / SQRT("), or not? Hee hee, one for you, one for me;-)
 
73's, Markus

 
-----Ursprüngliche Mitteilung-----
Von: Andy Talbot <[email protected]>
An: rsgb_lf_group <[email protected]>
Verschickt: Sa, 28 Nov 2015 3:19 pm
Betreff: Re: LF: More EbNaut 137.777

Bit late replying to this !
You forgot to show the squared term, although the final value is correct

1579 * (10/36145)^2 = 121uR

SO.....  How come no one else spotted the equation worked out incorrectly :-)

'JNT

On 26 November 2015 at 23:50, Markus Vester <[email protected]> wrote:
>> How can I estimate Rrad for a 100m wire at 10 m average height on 8.3 kHz? 
1579 ohms * (10 m / 36145 m) = 121 microohms
 ...
 
 
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