Return to KLUBNL.PL main page

rsgb_lf_group
[Top] [All Lists]

LF: Re: Tree noise

To: <[email protected]>
Subject: LF: Re: Tree noise
From: "Mike Underhill" <[email protected]>
Date: Thu, 20 Aug 2009 11:44:23 +0100
References: <[email protected]>, <002e01ca2057$32c9a5c0$0900a8c0@AM> <[email protected]> <[email protected]>
Reply-to: [email protected]
Sender: [email protected]

Dennis (DL6NVC)
Please could you try your loop away from the tree. Preferably more than 2 metres. I have found severe bio-electric(?) noise from trees from 3.5 to 500MHz.using loops, whips and UHF Yagis. The noise drops to almost zero if the tree ambient temperature is below about zero Celsius.
Mike - G3LHZ

----- Original Message ----- From: "Dennis" <[email protected]>
To: <[email protected]>
Sent: Wednesday, August 19, 2009 2:03 PM
Subject: LF: Re: 500kHz qrg range* THANKS!



2. Most of the time there is a terrible broadband noise present in my home location, which blocks everything below 14MHz and even degrades Polskie Radio I on 225kHz and BBC4 198kHz (with the rx loop outside the house in a tree). That's the reason why I did not report any reception on 500kHz in the last weeks. There simply wasn't anything to receive... Although in a few kHz bandwidth this broadband noise of course does not equal the fieldstrengh of a local broadcast station, the broader the filter, the higher the level, unneccesary loading the mixer.

vy73
Dennis
DL6NVC








--
Neu: GMX Doppel-FLAT mit Internet-Flatrate + Telefon-Flatrate
für nur 19,99 Euro/mtl.!* http://portal.gmx.net/de/go/dsl02





<Prev in Thread] Current Thread [Next in Thread>