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LF: Re: Estimating CFH's radiated power

To: [email protected]
Subject: LF: Re: Estimating CFH's radiated power
From: "Alan Melia" <[email protected]>
Date: Mon, 22 Nov 2004 00:07:29 -0000
References: <[email protected]>
Reply-to: [email protected]
Sender: [email protected]
Hi Markus the output power of CFH is supposed to be 25kW into an 80%
efficient aerial system (my 20kW erp estimate) Reg, G4FGQs program
GROUNDWAV3 gives a spreading loss of 62.5dB when I add your estimate of 8dB
for the 200km of poor ground I get an estimate of 290uV/m at John's site ??
This is a lot closer that I would have expected.

Cheers de Alan G3NYK

----- Original Message -----
From: <[email protected]>
To: <[email protected]>
Sent: 21 November 2004 22:44
Subject: LF: Estimating CFH's radiated power


Dear John and group,

ok, I'll try...

One kilowatt EMRP across 700 km of lossless flat earth would give
 109.6 - 20 log (697) dBµV/m = 52.6 dBµV/m.




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