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Re: LF: May 2-4 KN97LN Activity

from [G0MRF] [Permanent Link][Original]
To: [email protected]
Subject: Re: LF: May 2-4 KN97LN Activity
From: [email protected]
Date: Fri, 26 Apr 2002 08:20:14 EDT
Reply-to: [email protected]
Sender: <[email protected]>
In a message dated 4/26/02 12:50:41 PM GMT Daylight Time, [email protected] writes:


At 11:58 26/04/2002 +0400, you wrote:
>I continue to have the big QRM from:
>Alfa(Omega) (azim~196 degr, fq ~12kHz, QRB~200km, pwr~300KW)
>Chajka(Loran) (azim~240 degr, fq~100kHz, QRB~450km, pwr~800KW)
>Radio Chechnya(AM) / Radio Rossii(AM) -
>(azim~168 degr, fq~170/1190kHz, QRB~280km, pwr~150KW/2MW)



Hello Ed.

It should be possible to work QRSS between the  lines of the Loran while orienting a receive loop, or cofiguring a noise cancelling system on one of the other sources.

Whatever you choose I would suggest a band pass filter for the 136k band to avoid intermodulation products and if you are using a large antenna, an attenuator. Not sure how a beverage will work as 2km is still less then 1 wavelength. Also the height above ground would be a very small fraction of a wavelength. I'm sure there would be several members of the reflector interested in the results of work with an antenna of this type.

There are also many stations across Europe who would like to have a cross band QSO, so even if you have high QRM, you can still have 50 QSOs with a Big TX signal.

Good luck with the  'expedition'

73

David  G0MRF
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