[Help needed] Mikrotik Ltap Mini GPS not working

RouterOS General
1

How do I debug this piece of kak to know if it is user error (me) or GPS not working.

This is what I did:
/system console disable 0
/system gps set port=serial0 enabled=yes gps-antenna-select=internal
/port set 0 baud-rate=auto data-bits=8 flow-control=none name=serial0 parity=none stop-bits=1
/port firmware set directory=firmware ignore-directip-modem=no
The date is wrong despite the date on the unit being correct.
The device is next to the window, not a chance in hell it can’t see satellites. (my old Samsung S6 has full GPS signal)

[admin@MikroTik] > /system gps monitor
date-and-time: dec/31/1969 23:59:59
latitude: none
longitude: none
altitude: none
speed: none
destination-bearing: none
true-bearing: none
magnetic-bearing: none
valid: no
satellites: 0
fix-quality: 0
horizontal-dilution: 42949671.96
2019-07-03_13-45-03.png

2

Bump.

3

Any chance you added or removed the antenna, while the device was running? Shorting the connector central pin and connector outside, can cause GPS chip to be damaged. This is why you only should add/remove antenna while there is no power (GPS has an active 3V antenna).

Software wise, I think it looks correct

4

I might be missing something here, there is nothing to remove.

Does the device not have GPS built in as it says on the product page?

5

/system gps set port=serial0 enabled=yes gps-antenna-select=external

I don’t have the unit, so can you change this to anything else but external?

6

Hm, seems that GPS operation using the internal antenna is not advertised any more: http://forum.mikrotik.com/t/ltap-mini-gps-useless-without-antenna/121077/1

Worse than that, the antenna offered by Mikrotik has an SMA connector, and you need an extra pigtail to convert it to u.FL for yet another $9 recommended price.

7

Apologies I updated the OP - it was set to internal which did not work and then I tried external for shits and giggles - also did not work.

8

What is worse is that @Normis has stated elsewhere that the PPS signal is available in LtAP mini’s hardware but the NTP server software of ROS 6.x cannot make use of it, so LtAP mini cannot be currently used as a stratum 1 NTP server. Which has seriously cooled down my interest in it induced by your topic - I’m usually much more interested in what’s the exact time than where the heck I am :smiley: