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Questions tagged [dcf77]

DCF77 is a longwave time signal and standard-frequency radio station.

DCF77 is a longwave time signal and standard-frequency radio station. It is located in Mainflingen Germany and operated by the Physikalisch-Technische Bundesanstalt (PTB).

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DCF77 decoder vs. noisy signal

I have almost completed my open source DCF77 decoder project. It all started out when I noticed that the standard (Arduino) DCF77 libraries perform very poorly on noisy signals. Especially I was never able to get the time out of the decoders when…
Udo Klein
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DCF77 on BeagleBone - Get Time Signal and decode it

I want to have a RTC on my BBB. I wired the DCF77 on the UART4. Can you tell me how can I read the signal of the DCF77 and decode it on the BBB ? Thx
Ben Jo
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reducing jitter of serial ntp refclock

I am currently trying to connect my DIY DC77 clock to ntpd (using Ubuntu). I followed the instructions here: http://wiki.ubuntuusers.de/Systemzeit. With ntpq I can see the DCF77 clock ~$ ntpq -c peers remote refid st t when poll…
Udo Klein
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WebSDR and continuous wave (CW) demodulation of DCF77 signal

I am trying to receive DCF77 signal via WebSDR. When I set CW demodulation I hear the sound even if I select the band with 0 width. I am relatively new to the radio. The question is why I do I hear the sound? I know that CW modulation is used for…
Art Spasky
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Generate XML file on CF7 submition

add_action('wpcf7_before_send_mail', 'my_get_form_values'); function my_get_form_values($contact_form) { // get info about the form and current submission instance $formTitle = $contact_form->title(); $submission =…
Sohel Arman
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What is the serial comms protocol for the DCF77 receiver module from HKW named FUM DCF-U

There is no reply from the supplier (in Germany), nor any hit from my searches. The module has a simple RS232 connection which allows interrogation of the module to get 'atomic' date&time info, but details of the protocol are nowere to be found. I…
Erlend
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Proper mode for ntp parse clock driver

I am currently setting up a NTP stratum 1 time server with a DIY DCF77 clock. According to the documentation I need to configure one of the lines below. # Walter Schmid DCF receiver Kit (AM demodulation / 1ms) #server 127.127.8.0 mode 4 # RAW DCF77…
Udo Klein
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