RE: LF: VLF Small magnetic antenna for Tx

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RE: LF: VLF Small magnetic antenna for Tx

from [Clemens Paul]

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To:	<[email protected]>
Subject:	RE: LF: VLF Small magnetic antenna for Tx
From:	"Clemens Paul" <[email protected]>
Date:	Sat, 3 Feb 2018 11:24:29 +0100
In-reply-to:	<[email protected]>
References:	<579355A36AEE9D4FA555C45D556003AB9AB485D3@servigilant.vigilant.local> <[email protected]> <[email protected]>
Reply-to:	[email protected]
Sender:	[email protected]
Thread-index:	AQKIjaFcimWHhYva/6wQoj7d7es8IQKX8hVkohFjNaCAAnD6UA==

Hi Jim, 

>At 38kHz the impedance of the transmitting loop’s field at 100 
>meters is ~ 25 ohms,

I've found a graph showing Z_Wave over D/ʎ.
Near the loop: Z_wave = 377*(2pi*D) / lambda

73
Clemens
DL4RAJ 


>-----Original Message-----
>From: [email protected] 
>[mailto:[email protected]] On Behalf Of 
>[email protected]
>Sent: Thursday, February 1, 2018 11:22 PM
>To: [email protected]
>Subject: RE: LF: VLF Small magnetic antenna for Tx

Wave Impedance.png
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