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hzeller / txtempus

A DCF77, WWVB, JJY and MSF clock LF-band signal transmitter using the Raspberry Pi
GNU General Public License v3.0
443 stars 71 forks source link

Rpi2 60khZ frequency needs overclock #12

Open ispire2 opened 4 years ago

ispire2 commented 4 years ago

Hello,

Thank you very much for this program. It is great. I used it on my Rpi2 for WWVB/Marathon Clock and did not work (on 60kHz) until I overclocked it to 1GHz. After this fix it works perfectly on 60 and 77.5 kHz but not on 40 kHz. Also my RPi2 does not have X installed and the transmitter work perfectly with the HDMI connected; perhaps problems are when X is in use. Keep up the good work.

Best Regards

cnww-ns commented 3 years ago

I just set this up on a headless Raspberry Pi 2 model B. It worked perfectly without overclocking, but I do not have a monitor connected. I suspect that may be the source if this issue.

I am available to run other tests if you'd like.

ispire2 commented 3 years ago

Thank you. Appreciated. Will try again, just for curiosity;I am not running X though.. Can you get the 40 kHz signal ? That I could not get at all. Regards.

On Wed, Feb 17, 2021, 3:26 PM cnww-ns notifications@github.com wrote:

I just set this up on a headless Raspberry Pi 2 model B. It worked perfectly without overclocking, but I do not have a monitor connected. I suspect that may be the source if this issue.

I am available to run other tests if you'd like.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/hzeller/txtempus/issues/12#issuecomment-780831587, or unsubscribe https://github.com/notifications/unsubscribe-auth/ADUQJAVYVKV6KO6JSH7UEM3S7QRAPANCNFSM4TXQPKUQ .

cnww-ns commented 3 years ago

Sorry, I should have specified in my previous message that I'm using WWVB at 60KHz.

I do not have a 40KHz receiver to test it with, but based on the console output it appears to think that it's transmitting successfully when I ask it to use JJY40. Whether it actually is working is a whole other question.

ispire2 commented 3 years ago

No worries. I checked the output on a scope. All my clocks are now perfect. Great work. Thanks again.

On Wed, Feb 17, 2021, 16:30 cnww-ns notifications@github.com wrote:

Sorry, I should have specified in my previous message that I'm using WWVB at 60KHz.

I do not have a 40KHz receiver to test it with, but based on the console output it appears to think that it's transmitting successfully when I ask it to use JJY40. Whether it actually is working is a whole other question.

— You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub https://github.com/hzeller/txtempus/issues/12#issuecomment-780867223, or unsubscribe https://github.com/notifications/unsubscribe-auth/ADUQJAQHVUATN3RANK6I7W3S7QYQJANCNFSM4TXQPKUQ .