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gpsd support with ubiquiti gps ap

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Thu, 03/31/2022 - 22:01
#1
kC9FQT
gpsd support with ubiquiti gps ap

Does anyone know if the GPS on the Ubiquiti Rocket M5 GPS is supported by gpsd?

Can the AREDN node running on this device run gpsd and make it available as a
network service?

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Sun, 04/03/2022 - 18:44
AE6XE
AE6XE's picture
Several years ago I had gpsd
Several years ago I had gpsd working on a Rocket M5. But I had to modify the source code to get it usable. I kicked off a build of gpsd a couple days ago with the default source on the current nightly build branch and it compiled. I ran out of time to install and test. Now out of town again and back home next weekend. No guarantees, but I wouldn't mind getting thus working on my rocket again. In my configuration, the GPS hardware was accessed via serial port which isn't the highly accurate way. More drivers needed to be installed at the time to have more time accuracy. This isn't something that would likely be released as part of AREDN, as it's desirable to not run services on the mesh node that can readily be hosted on a LAN device. We're all motivated to keep mesh nodes to be lean mean routing machines.
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Fri, 04/07/2023 - 13:59
(Reply to #2)
KM6SLF
KM6SLF's picture
Isn't accurate network time
Isn't accurate network time pretty critical to the effective operation of the network? I think the required packages a pretty lightweight, and with the new smaller AREDN firmware, I hope there's sufficient room to make what you set up standard on devices that have GPS built in.
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Fri, 04/07/2023 - 21:18
w6bi
w6bi's picture
Network time
Bill, the easy way to keep time with AREDN is just point your node to a local NTP server.  It's more than accurate enough, considering the only thing time is used for with AREDN is for accurate timestamps for the logs.

Orv W6BI
 
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Tue, 04/18/2023 - 16:57
kC9FQT
Gpsd
My question actually has nothing to do with keeping time. We have a separate device in several locations running gpsd to share with other devices. It would be nice to just use that one instead.
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Tue, 04/18/2023 - 19:37
AE6XE
AE6XE's picture
I tested and installed gpsd
I tested and installed gpsd within the last ~year and it worked  with the latest version of AREDN firmware at the time.   Note, however, the configuration to the serial port does not give a stratum 0 clock.  It is good, but not perfect.   To have more accurate timing the I2C packages need installed and gpsd configured accordingly.
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