[time-nuts] Advice on good reception for radio clocks

Robert Atkinson robert8rpi at yahoo.co.uk
Wed Jun 27 19:31:53 UTC 2012


Hi Tony,
I'd try a battery pack instead of the wall-wart. If it's an ebay china special it may be pretty bad. Why are you using DCF rather than MSF? I have an old Radiocode Clocks MSF receiver running in the garage without a problem, I'm in Cambridge too.
Many years ago I tried a MSF receiver based on a Cirkit kit. Never got it to work, mostly due to intereference from the Z80 micro.

Robert G8RPI.



________________________________
 From: Tony Finch <dot at dotat.at>
To: Discussion of precise time and frequency measurement <time-nuts at febo.com> 
Sent: Wednesday, 27 June 2012, 18:28
Subject: Re: [time-nuts] Advice on good reception for radio clocks
 
Kasper Pedersen <time-nuts at kasperkp.dk> wrote:
>
> When I did my DCF77 receiver, my first source of interference was the
> common noise on the output of the supply I was powering it off of.

So I'm using a cheap and cheerful (there's a theme here) wall wart with
micro-USB connector which I guess is pretty horrid in this regard. The
other possibly relevant thing is the HDMI connection to the display.

Tony.
-- 
f.anthony.n.finch  <dot at dotat.athttp://dotat.at/
Viking: Northeast veering east 4 or 5, occasionally 6 later. Slight or
moderate. Occasional rain in southwest. Moderate or good.

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