Re: LF: questions about a tx square loop fpr 470KHz

To:	"[email protected]" <[email protected]>
Subject:	Re: LF: questions about a tx square loop fpr 470KHz
From:	Roman <[email protected]>
Date:	Sat, 02 May 2015 00:43:46 +0300
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Buongiorno, Mauro!

Alexander R7NT make a semi-LOOP for LF 136 kHz several years ago using Al-Plastick pipes for the water 15mm diametre.

http://136.73.ru/sloop/index.htm

Topic on the russian forum about that expirience:

http://136.su/index.php/topic,149.0.html

73!

Roman

01.05.2015, 00:25, "IK1WVQ Mauro" <[email protected]>:

73 to all,

I would like to know your opinion about this:

I can made a square TX loop for 470KHz of 7 * 3 meters (see picture) in the terrace of the building where I live (6 floors).

the questions are:

- it is enough a 6mmq copper electric wire ?? (20W is the output power of my tx).
- single turn or two turns spaced 10cm max ?? (two turns = less pF required to take the resonance).
- Is this a good idea to start to trasmit on 470KHz WSPR ??

thanks in advance for your attention.

73 de Mauro IK1WVQ

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73!

Roman, RW3ADB

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