[time-nuts] 4501 Netclock

Bob Camp lists at rtty.us
Thu Apr 22 11:40:44 UTC 2010


The pps pulse out of the TBolt is pretty narrow, the pulse stretcher is probably needed.

In addition to what's shown in John's instructions, you will need a link for the serial port. It's just like the link you set up for the pps port. The notes on the driver should show you what it needs to be called. gps0 is a pretty common name.


On Apr 21, 2010, at 10:43 PM, Joe S. Borovetz wrote:

> Has anyone successfully used a Thunderbolt GPS  with a 4501 Netclock based on the design that John Ackermann
> describes on his web page.
> As far as the 10 MHz and 1PPS signals, they should be no problem. What I am concerned about is whether or not the Thunderbolt RS-232  port supplies the time information in the correct format.
> Also, I am interested in other options for a Netclock OS as opposed to NanoBSD.
> If NanoBSD is the best way to go, that is the OS that I will use. I am trying to avoid loading a PC with another OS  just to build the Netclock. Not that I am lazy, it is a matter of available free time. something that is in short supply these days.
> Joe
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