On Mon, 14 Nov 2022 at 15:59, Mark Delany <[email protected]> wrote: > Agreed. But lets be frank here. The antenna and cabling costs are likely to > be orders of > magnitude more than the shield/hat cost.
And that's pretty much the point, and is ALSO the reason why I went to all this trouble. Once someone (yay me) has actually MADE the thing to be as lego-like as possible, the software is super trivial, so all you guys need to do is get the (who knows how much) Pi-or-Compatible, a patch lead ($3, ebay),and an active antenna ($10, ebay) Re software- almost the entirety of the config is here, in ntpsec.conf: https://github.com/xrobau/rpi-ntp/blob/master/conf/ntp.conf and the other knobs that I've twiddled to MY satisfactions in the playbook and config.txt. The only new thing is that there's the extremely-suspiciously-poorly-documented "Stationary mode" which uBlox added as a precursor to the 'T' series of devices, and after you cast the magic incantations (see the Makefile), it apparently compares quite well to a $200 T-series chip. Notably, if you're caring that much about nanosecond-drift-over-hours, then you'll have three in a temperature controlled environment, with disparate antennas and calculate a quorum from there. And use T series devices. Most people HERE I suspect aren't needing that much accuracy 8) The only thing I'm slightly regretting is not making a CEO model. It'll be exactly the same as the $30 one, but it'll cost $300, and you can show it to your CEO and say you're getting the expensive model, because the expensive one is better! There's about 40 left at the time of writing this, if anyone's tossing up getting some before I run out. Please don't think this is a 'BUY IT NOW OR MISS OUT FOREVER' thing - if I need to, I'll order some more, and will sell them at cost to the AusNOG community, because I'm a selfish bastard who wants more ipv6 and less ipv4 - Even if you don't give it an ipv6 address 8) The stock level on the ordering page SHOULD be accurate - https://freepbxhosting.com.au/s/gps-v1/ --Rob _______________________________________________ AusNOG mailing list [email protected] https://lists.ausnog.net/mailman/listinfo/ausnog
