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Re: LF: VO1NA in Todmorden on 8270 Hz

To: [email protected]
Subject: Re: LF: VO1NA in Todmorden on 8270 Hz
From: DK7FC <[email protected]>
Date: Sat, 07 Oct 2017 22:55:34 +0200
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Hi Joe, VLF,

Same problem at RC4HAA. They put their grabber online at http://136.su/grabber/ and granted remote acces to their PC. The PPS looks like in the attachment. Looks like a C is shorting the pulse. However there should be no C in the circuit. Has someone an idea? Does it happen on some soundcard types? Maybe a large C like 1000uF would help?

73, Stefan

Am 07.10.2017 18:44, schrieb [email protected]:

Yes, pps and NMEA to SpecLab but evidently no discipline yet. The pps pulse looks strange on the SL scope and there are 'PPS zero-crossing too flat' debug errors on SL SR correction. This is all the NEO7M seems willing to provide at the moment; connecting the raspi3 to the tiny USB pins on the NEO7M was fun, but otherwise unproductive. I'm hoping it's possible to send commands directly to the neo7m via usb without a special chip.

Attachment: RC4HAA_PPS.png
Description: PNG image

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