Message-ID: <5C659CE5.6070306@posteo.de>
Date: Thu, 14 Feb 2019 17:52:53 +0100
From: DK7FC <selberdenken@posteo.de>
User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; de; rv:1.9.1.8) Gecko/20100227 Thunderbird/3.0.3
MIME-Version: 1.0
To: rsgb_lf_group@blacksheep.org
References: <5C656A8F.70702@gmx.de>
In-Reply-To: <5C656A8F.70702@gmx.de>
Subject: Re: LF: Question: QRM from induction cookers?
Content-Type: text/plain; charset=ISO-8859-15; format=flowed
Content-Transfer-Encoding: 8bit
Sender: owner-rsgb_lf_group@blacksheep.org
Precedence: bulk
Reply-To: rsgb_lf_group@blacksheep.org

Hi Steffi,

Their switching frequency is above the audible range but not to far of, 
to keep the switching losses low. But certainly a switched high power 
source which will have a load of harmonics.
Avoid it of you can, especially when you are a radio amateur!
If you qrz.com entry is correct you're living in Nürnberg. I know 
someone else on that reflector who's also living there and he is 
operating a VLF grabber which could then detect when you prepare a 
Schweinebraten. :-)

Another consideration is the life time. In our western throw-away and 
buy new society i would expect that the life time will be less tahn 5 
years maybe. The old models may behave different, because they are old!

And after all, for what do you need it at all? Is there any real 
advantace? I just see it is fancy and you might need to throw away your 
old pots and buy new ones, which is of course recommended.

If you look back in time, have you been unhappy with your old cooker? 
And do you think you will be more happy (not just in the first weeks) 
with the new one?


73, Stefan


Am 14.02.2019 14:18, schrieb Steffi:
> Hi LF Group,
>
> soon I will have to buy a new kitchen and I wonder, if an induction
> cooker is the right choice (regarding QRM!). Does anyone have experience
> with QRM on MF, LF, VLF produced by an induction cooker? Which brands
> can be recommended?
>
> I already heard, that there won't be problems on 80m, but what about
> lower frequencies?
>
> I'm not yet QRV on MF/LF, but maybe in the future..
>
> Any comments and experiences will be helpful!
>
> 73,
> de Steffi - dl8nsb
>
>