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Re: LF: MF NOW

To: <[email protected]>
Subject: Re: LF: MF NOW
From: "Graham" <[email protected]>
Date: Thu, 3 Jan 2013 19:14:05 -0000
Importance: Normal
In-reply-to: <[email protected]>
References: <001401cde9ca$c69547b0$0501a8c0@xphd97xgq27nyf> <[email protected]> <002201cde9ce$4206d050$0501a8c0@xphd97xgq27nyf> <[email protected]> <[email protected]>
Reply-to: [email protected]
Sender: [email protected]
My NOV has the  same   5  watts  over  and  1  watt  under    the  distance 
 
G..

Sent: Thursday, January 03, 2013 5:58 PM
Subject: Re: LF: MF NOW

Hi Stefan,

Hope this not turning into a 20-watt ERP beacon.. ;-) Well just kidding, but see calculations below.

AFAIK, we are still limited to 1 W ERP in this country since some borders are less than 800 km away from the 'primary' users. Not sure if this will change - anyone out there with more info ? From the old (preliminary?= text at at

http://www.bundesnetzagentur.de/SharedDocs/Downloads/DE/BNetzA/Sachgebiete/Telekommunikation/Regulierung/Frequenzordnung/Amateurfunk/AmtsblattverfuegungenAFu/Mitteilung3862012NutzungFreqBereich472_479kHz.pdf?__blob=publicationFile

>
Es wird darauf hingewiesen, diese Regelung sensibel anzuwenden, Störungen zu vermeiden und die
maximale Leistung nur dann auszuschöpfen, wenn es zur Aufrechterhaltung einer Funkverbindung
oder für experimentelle Zwecke als zwingend notwendig erachtet wird.
<

Anyway, make the best of it, and add a few taps at the output transformer to step down the power if necessary. Remember Andy's nice EIRP calculator (xls) ?

Effective antenna height = 10 meters
Capacitance = 260 pF (guesstimate but realistic for a medium sized antenna)
Total resistance = somewhere around 31 ohms
Power input = 700 Watts

-> EIRP = 27 Watts


Good for DX but not for the license.

73,  Wolf .


Am 03.01.2013 18:28, schrieb Stefan Schäfer:
Mal,

Guess that project will help a bit, https://dl.dropbox.com/u/19882028/MF/DSC04496.JPG
Coming soon...

73, Stefan

Am 03.01.2013 17:20, schrieb mal hamilton:
Stefan
I am more or less sea path all the way, which no doubt helps me
gl de mal/g3kev
 
----- Original Message -----
Sent: Thursday, January 03, 2013 4:09 PM
Subject: Re: LF: MF NOW

Interesting QSB. I'm still invisible. Nice to have a chance to explore that path!

73, GL, Stefan


Am 03.01.2013 16:53, schrieb mal hamilton:
MF
Now TX qrs10 for DX qso on 476.176 Khz
de mal/g3kev
 

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