Return to KLUBNL.PL main page
| To: | <[email protected]> |
|---|---|
| Subject: | LF: RE: ERP and loop efficiency |
| From: | "Clemens Paul" <[email protected]> |
| Date: | Wed, 12 Sep 2018 18:31:59 +0200 |
| In-reply-to: | <[email protected]> |
| References: | <[email protected]> <[email protected]> <[email protected]> <[email protected]> |
| Reply-to: | [email protected] |
| Sender: | [email protected] |
| Thread-index: | AdRJB2DnFzmIZYuWQkqKN2fJniJ03AAxYZsg |
Hi Stefan, >I have no idea if the equivalent loop area actually increases >with a dropping TX frequency. On LF it seems to do at least :-) Capture area of a *lossless* small loop is defined by the formula 3*lambda^2/8pi and therefore independent of its physical size. The loss of real world loops increases with decreasing radiation resistance, i.e. with decreasing size. Rrad of a small loop is Rr = 20.k^4.A^2 (k = 2pi / lambda) 73 Clemens DL4RAJ >-----Original Message----- >From: [email protected] >[mailto:[email protected]] On Behalf Of DK7FC >Sent: Monday, September 10, 2018 3:07 PM >To: [email protected] >Subject: ULF: ERP and loop efficiency > > |
| Previous by Date: | Re: LF: VO1NA 8270.0075 Hz, 82 Hz phase, Markus Vester |
|---|---|
| Next by Date: | Re: LF: VO1NA 8270.0075 Hz, 82 Hz phase, Markus Vester |
| Previous by Thread: | RE: LF: RE: ERP and loop efficiency, hvanesce |
| Next by Thread: | RE: LF: Re: 137 kHz WSPR-2 on a 900m long ground loop, this weekend, Clemens Paul |
| Indexes: | [Date] [Thread] [Top] [All Lists] |