So it might just have been the weather. I'm getting quite good reception
this evening - losing one bit in every 200 or so. Enough to write a crappy
decoder that can display the time and the DCF77 leapsecond warning bit. 25
minutes to go, ish!
Tony.
--
f.anthony.n.finch d...@dotat.at
Went ok: https://p.twimg.com/AwrS0WgCIAAyTmM.jpg:large
Amusingly reception has turned to mush since then, but you can see the
leapsecond warning bit has gone to 0 - 001001 vs. 001011.
Even though this is fairly crappy as clocks go, it has been fun.
https://p.twimg.com/AwrHE_mCQAEcRIf.jpg:large
Are there any basic steps I should take to improve the reception quality
of a radio clock? I have a cheap and cheerful DCF77 receiver for
connecting to some GPIO pins, but its PPS output is basically noise with
maybe a one-second period. Perhaps it's just cheap and nasty.
I am in Cambridge.
Tony
Hi Tony:
The loopstick antenna has a pattern with a couple of nulls so the orientation
is important.
Also during the daytime there's probably too much noise to receive a good
signal so best to listen around local midnight.
Have Fun,
Brooke Clarke
http://www.PRC68.com
Hi Tony,
On 27 June 2012 15:04, Tony Finch d...@dotat.at wrote:
Are there any basic steps I should take to improve the reception quality
of a radio clock? I have a cheap and cheerful DCF77 receiver for
connecting to some GPIO pins, but its PPS output is basically noise with
maybe a one-second
Andrew Back and...@carrierdetect.com wrote:
I got one of those SYMTRIK modules working but the antenna orientation
did seem a bit fiddly, and this was MSF and not DCF77.
http://www.designspark.com/content/atomic-time-raspberry-pi
Don't suppose you're using a Raspberry Pi for this? I'd
On 06/27/2012 04:04 PM, Tony Finch wrote:
Are there any basic steps I should take to improve the reception quality
of a radio clock? I have a cheap and cheerful DCF77 receiver for
connecting to some GPIO pins, but its PPS output is basically noise with
maybe a one-second period. Perhaps it's
Yes, this last is exactly my same experience with the DCF77: the receiver
used alone with a linear power supply was running fine, connected to the PC
or a microproccesor board with a switching power supply was a problem.
On Wed, Jun 27, 2012 at 5:59 PM, Kasper Pedersen time-n...@kasperkp.dkwrote:
One trick that works, place the entire receiver. on a pole (black ABS pipe)
fixed to the back yard fence. This places it as far from any house or
power line. I don't think the pole needs to be tall. 8 feet get should be
enough.Of course now you need a long wire and a pair of RS422 driver
Good idea... do you think to use batteries or along the differential line
run a power line? Power... only a few mA would be enough.
On Wed, Jun 27, 2012 at 6:20 PM, Chris Albertson
albertson.ch...@gmail.comwrote:
One trick that works, place the entire receiver. on a pole (black ABS pipe)
fixed
Kasper Pedersen time-n...@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
: Re: [time-nuts] Advice on good reception for radio clocks
Kasper Pedersen time-n...@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
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