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

To: [email protected]
Subject: RE: Re: LF: questions about a tx square loop fpr 470KHz
From: "Roman RW3ADB" <[email protected]>
Date: Sun, 3 May 2015 10:48:52 +0300
Cc: [email protected]
In-reply-to: <[email protected]>
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Rambler test, Genossen LFers, excuse! 


Roman RW3ADB.

Personal email: [email protected]

I use [email protected] for LF group only.

2.5.2015 0:47:58 пользователь Roman ([email protected]) написал:

Buongiorno, Mauro!
Alexander R7NT make a semi-LOOP for LF 136 kHz several years ago using Al-Plastick pipes for the water 15mm diametre.
Topic on the russian forum about that expirience:
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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Roman, RW3ADB
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