rpi3 clock drift

[Ross Alexander]

On Wed, 27 Nov 2019, James Shuriff wrote:

> Yeah, I'm convinced 19.2 MHz is what I *should* have. I just need to
> figure out what's supplying the frequency. I expect it's a bad FDT.
>
> What model is your GPS hat?

An Adafruit "ultimate gps hat" (typical commercial hyperbole, sigh.)
It's about $65 after you add the 40 pin molex connector, the
micro-whatever to SMA cable, and the external amplified patch antenna.

You can get along without those last two if your Pi is outside, but
I'm in a metal roofed building which the little patch antenna built
into the hat proper finds impenetrable.  An external antenna out on
top of the roof makes all the difference.

regards,
Ross

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