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LF: Re: Re: RE: GAIN

To: rsgb_lf_group@blacksheep.org
Subject: LF: Re: Re: RE: GAIN
From: "John Andrews" <w1tag@charter.net>
Date: Tue, 1 Apr 2003 11:59:37 +0100
References: <LEEGIKOMHIEKBPDOHLOIIENJCFAA.we0h@gentekcom.com> <002b01c2f824$ecb39b60$2602a8c0@WorkGroup>
Reply-to: rsgb_lf_group@blacksheep.org
Sender: <owner-rsgb_lf_group@blacksheep.org>
Mike,

I have seen people use 'series' and 'parallel' resonating when talking
about
loops, but what is the difference - surely if it is a continuous loop they
are both the same? Can someone clarify, please.
The difference is in the coupling method. The "series" version uses a
step-down transformer between the transmission line and the loop, with the
low-impedance secondary wired in series with the loop and tuning capacitor.
The "parallel" version uses a step-up transformer, with the high-impedance
secondary placed across the tuning capacitor.

The performance of the antenna should be the same in either case.

John Andrews, W1TAG





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