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port9nka
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LtAP mini as gps ntp server

Wed Sep 16, 2020 5:37 am

Hello!

I wanna to build ntp server with gps-time collecting based on mikrotik.

Could LtAP mini act as gps ntp server using built-in gps module ?

Thanks
 
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mkx
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Re: LtAP mini as gps ntp server

Wed Sep 16, 2020 8:35 am

Could LtAP mini act as gps ntp server using built-in gps module ?

Probably not because it takes much more than simple NMEA datagram reception to set NTP server's clock to precise time. AFAIK Mikrotik's GPS module lacks required interfaces (e.g. 1PPS interface), possibly NTP server lacks required drivers as well.
 
port9nka
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Re: LtAP mini as gps ntp server

Wed Sep 16, 2020 10:29 am

I've found this topic viewtopic.php?t=135119

where marekm said "RouterOS has had the ability to work as GPS synchronized NTP server for a long time - but its accuracy was limited by missing 1PPS support. "

So it must work but with lack of accuracy. Will it be a great problem?
 
jebz
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Re: LtAP mini as gps ntp server

Wed Sep 16, 2020 11:44 am

I think Normis had commented saying he thought 1PPS may be possible on this device in the future.
 
capy2008
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Re: LtAP mini as gps ntp server

Thu Feb 03, 2022 12:10 pm

I want to know this too. I buy or not LtAP mini to use it as GPS time server? Some guru respond or someone who know this things.

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