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On Mar 25, 2024, at 10:03 PM, Frank Nicholas <frank@nicholasfamilycentral.com> wrote:On Mar 25, 2024, at 8:24 PM, Gary E. Miller <gem@rellim.com> wrote:Yo Frank!
On Mon, 25 Mar 2024 20:04:36 -0400
Frank Nicholas <frank@nicholasfamilycentral.com> wrote:Strictly for time keeping in my home/home lab, any benefit of
replacing this: https://www.sparkfun.com/products/17285
With this:
https://www.sparkfun.com/products/24114 ?
Nope. Both far exceed your ability to follow their PPS.Not that I have a need (other than a nerdy desire) for anything more precise for logging, home, lab use, but I’m not using a SoC/Pi. This is running on my lightly loaded FW/router with an Intel CPU & real serial port under FreeBSD (if any of that matters):
<BKHD-1U-Server-Intel-Atom-Quad-Core-C3558-6-Lan-2-SFP-10G.jpg>
Prolly not. If you look in the archives, I used the ublox SPAN
feature to test a bunch of antennas. I could find no correlation
between what they said they were, and what they did. Some L2 only ones
where fine at all bands. Some L1/L2/L5 ones barely did L5.I’m currently using this antenna from Ublox on a circular steel plate ground plane:The F9P, F9T and D9S support L5. Check out the u-blox line card:
https://www.u-blox.com/sites/default/files/GNSS_LineCard_UBX-13004717.pdf
Doesn’t surprise me, but I wonder about the price, and I haven’t seen
any breakout boards or pucks that includes those versions.
Spark fun changes often, I have an F9P and F9T from them. The GNSS
receiver market is bette than during COIVD, but still a mess.
RGDS
GARY
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Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703
gem@rellim.com Tel:+1 541 382 8588
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"If you can't measure it, you can't improve it." - Lord Kelvin