From: "Clemens Paul" <cpaul@gmx.net>
To: <rsgb_lf_group@blacksheep.org>
References: <57092C53.5000809@gmx.de> <8D36094C8233440-1AE0-7BBD1B@webmail-vd015.sysops.aol.com>
In-Reply-To: <8D36094C8233440-1AE0-7BBD1B@webmail-vd015.sysops.aol.com>
Date: Sat, 9 Apr 2016 19:40:23 +0200
Message-ID: <6611F50AC1E14C9CB4801E80CEDD136E@Clemens0811>
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Subject: LF: RE: Lawn Mower QRM
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Hi Markus,

today you have better chances regarding help by BNetzA if an amateur band
is polluted than if it were a BC band.
The PLC (aka BPL in US) lobby has pushed up the allowed level in EU by 40dB (IIRC)
*outside* the ham bands.
Even noise with S9 in a ~6kHz BW is within this allowed level in a BC band.

A friend of mine in Munich had S9 broadband noise (but no PLC noise) on 80m.
The BNetzA stuff could help him out because it was above the allowed level.
It turned out that it was a badly wired telephone line to his heighbours house carrying
VDSL signals.


73
Clemens
DL4RAJ 
    

>-----Original Message-----
>From: owner-rsgb_lf_group@blacksheep.org 
>[mailto:owner-rsgb_lf_group@blacksheep.org] On Behalf Of Markus Vester
>Sent: Saturday, April 09, 2016 6:34 PM
>To: rsgb_lf_group@blacksheep.org
>Subject: LF: Lawn Mower QRM
>
>Hi Hartmut, 
> 
>now that looks pretty nasty! Could you state that the QRM also 
>affects LF or MF broadcast reception? If so the BNetzA might 
>be willing to help. 
> 
>Best 73,
>Markus (DF6NM)
>
>
>-----Ursprüngliche Mitteilung----- 
>Von: Hartmut Wolff <h-wolff@gmx.de>
>An: rsgb_lf_group <rsgb_lf_group@blacksheep.org>
>Verschickt: Sa, 9 Apr 2016 6:24 pm
>Betreff: Re: WH2XIL Re: LF: TA receptions
>
>Am 2016-04-09 um 15:22 schrieb Warren Ziegler: 
>> I saw no trace on either Joe DF2JP's 
>> grabber nor on Hartmut's grabber, I wasn't sure that I was 
>getting out 
>> at all. 
>
>Warren, 
>
>sorry, my grabber is off since my neighbour switched on his 
>Robotic Lawn 
>Mower. The loop line of the lawn mower is feeded with a 
>rectangle signal 
>with strong harmonics up to 500kHz. How this looks on a 
>screenshot of my 
>local NDB FSB-284 Fassberg can be seen here: 
>
>https://dl.dropboxusercontent.com/u/50178231/JR/284kHzNDB.jpg 
>
>73 
>Hartmut 
> 
> 
>  
>
>