Message-ID: <172FDE1A0901403FAD534D19F1422B98@PcMinto>
From: Minto Witteveen <minto.witteveen@gmail.com>
To: <rsgb_lf_group@blacksheep.org>
References: <68BE37BD69E54DEE89CEBA8E30E9B94E@PcMinto> <4E47FFE9.10100@iup.uni-heidelberg.de> <3ED8E5422F1F45DBB8186E9D9870AD63@PcMinto> <4E480E02.9020706@iup.uni-heidelberg.de> <938BF599006244949F6CDDB5BA91F347@PcMinto> <002901cc5acd$ac819230$8000a8c0@Clemens04>
In-Reply-To: <002901cc5acd$ac819230$8000a8c0@Clemens04>
Date: Mon, 15 Aug 2011 22:26:26 +0200
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Subject: Re: LF: Ferrite RX antennas
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Hi Clemens, LS



Hah.. another can of worms opened... thanks Stefan :-) !!

So it seems that ferrite indeed may work. Probably not as good as any other 
alternative but who knows, at least it may lead to another interesting 
experiment.
And that is what I like.



@Stefan: I already knew of the ferrite that you can buy at the webshop of 
Funkamateur. Expensive though, a 60-rod sleeve antenna will set you back EUR 
360 !!



73's Minto pa3bca.


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Ceterum censeo Carthaginem delendam esse

From: Clemens Paul
Sent: Monday, August 15, 2011 00:01
To: rsgb_lf_group@blacksheep.org
Subject: LF: Re: Re: 137 grabbers

Minto,

as to DCF77:
my radio controlled Citizen wrist watch receives DCF77 extremely reliably
every night with its built in ~2cm ferrite rod antenna.
Even presently here at the Cote d'Azur field strength is indicated as "high"
(the watch indicates three grades:high,medium,low).
I find this amazing.

73
Clemens
DL4RAJ


----- Original Message ----- 
From: Minto Witteveen
To: rsgb_lf_group@blacksheep.org
Sent: Sunday, August 14, 2011 9:43 PM
Subject: LF: Re: 137 grabbers


I haven’t thought about ferrite RX antenna for LF….My guess is that it is 
not going to work – not without an external antenna coupled to the ferrite, 
and then what’s the point?
DCF77 clocks often have trouble locking indoors or in the neighborhood of 
‘QRM’ generators like PC’s, and look what power DCF77 is using…
I could be entirely wrong of course…

73’ Minto pa3bca


From: Stefan Schäfer
Sent: Sunday, August 14, 2011 20:03
To: rsgb_lf_group@blacksheep.org
Subject: Re: LF: Re: 137 grabbers

<snip>
BTW what do you think about a ferrite RX antenna for LF? Now i'm opening an 
older discussion i expect ;-)

73, Stefan/DK7FC




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