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Re: LF: PA0SE Field Strength Meter for 137 kHz

To: [email protected]
Subject: Re: LF: PA0SE Field Strength Meter for 137 kHz
From: "Dick Rollema" <[email protected]>
Date: Tue, 25 Nov 2003 11:29:32 +0100
In-reply-to: <[email protected]>
References: <[email protected]>
Reply-to: [email protected]
Sender: <[email protected]>
To All from PA0SE,

Many thanks to Stewart and several others who explained what went wrong with my e-mail for some subscribers to the reflector.

I emphasize that the formula can only be used within  distances from the transmitter where  the field strength decreases  in a linear way with distance and attenuation due to absorption by the ground can be neglected.   

73, Dick, PA0SE

At 07:17 24-11-03 -0800, you wrote:
Hi Eric and all,

Dick's post, made with Eudora, contained this HTML fragment:

The correct formula is:<br><br>
P = 0.0111(E *d)</font><font size=1><sup>2</sup></font><font size=3> in which

Depending on your mail reader and/or browser, the superscript 2 may not
have displayed correctly.

The correct formula is: P = 0.0111 * (E * d) ** 2
or P equals 0.0111 times ((E times d) squared)

Hope this is clear.



----- Original Message -----
From: "Eric KD5UWL" <[email protected]>
To: "LF-Group" <[email protected]>
Sent: Monday, November 24, 2003 6:44 AM
Subject: Re: LF: PA0SE Field Srength Meter for 137 kHz

> On Mon, 24 Nov 2003, Dick Rollema wrote:
> > produces a certain field strength is wrongly given as
> > P = 0.0111(E * d)2.
> >
> > The correct formula is:
> >
> > P = 0.0111(E *d)2 in which:
> Hi, Dick,
> Sorry -- I don't see the difference.  Did you include the wrong one?
> 73
> Eric
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