LtAP GPS

Hardware MikroTik hardware general
1

Hello
Can someone tell why the hell GPS don't work in new LtAP devices ? I use external antenna

[nemke@xxxxxxxxxxxxxx] /system console> print
Flags: X - disabled, U - used, F - free

PORT TERM

0 X serial0
[nemke@xxxxxxxxxxxxxx] /port> print
Flags: I - inactive

DEVICE NAME CHANNELS USED-BY BAUD-RATE

0 serial0 1 GPS auto
1 serial1 1 auto
[nemke@xxxxxxxxxxxxx] /port> print detail
Flags: I - inactive
0 name="serial0" used-by="GPS" device="" channels=1 baud-rate=auto data-bits=8 parity=odd stop-bits=1 flow-control=none
1 name="serial1" used-by="" device="" channels=1 baud-rate=auto data-bits=8 parity=none stop-bits=1 flow-control=none
[nemke@xxxxxxxxxxxxx] /system gps> print
enabled: yes
port: serial0
channel: 0
init-string:
set-system-time: no
coordinate-format: ddmm
gps-antenna-select: external
[nemke@Lora Gateway 1] /system package> print
Flags: X - disabled

NAME VERSION SCHEDULED

0 routeros-mmips 6.45.2
1 system 6.45.2
2 X ipv6 6.45.2
3 wireless 6.45.2
4 hotspot 6.45.2
5 mpls 6.45.2
6 routing 6.45.2
7 ppp 6.45.2
8 dhcp 6.45.2
9 security 6.45.2
10 advanced-tools 6.45.2
11 gps 6.45.2
[nemke@Lora Gateway 1] /system routerboard> print
routerboard: yes
board-name: LtAP LTE kit
model: RouterBOARD LtAP-2HnD&R11e-LTE
serial-number: A4340A25CD67
firmware-type: mt7621L
factory-firmware: 6.43.12
current-firmware: 6.45.2
upgrade-firmware: 6.45.2

I wait 2h on clera sky but there is no GPS data, also there is no logs

2

You disabled the serial console port and set the data to GPS?

Regards.

3

[nemke@xxxxxxxxxxxxxx] /system console> print
Flags: X - disabled, U - used, F - free
0 X serial0

[nemke@xxxxxxxxxxxxxx] /port> print
Flags: I - inactive

DEVICE NAME CHANNELS USED-BY BAUD-RATE

0 serial0 1 GPS auto
1 serial1 1 auto

YES




4

Does the GPS work without the external antenna?

What kind of antenna are you using?

Also fill me in on what kind of connector is on the LtAP for external GPS? (datasheet says MMCX, but it looks more like a oversized photoshoped RP-MMCX)

Does this help?
http://forum.mikrotik.com/t/ltap-mini-gps-useless-without-antenna/121077/1

5

Hello
No, GPS don’t work in any case in my situation. Using internal or external antenna
Yes, LtAP has connector for external antenna, i is SMA female. I use normal Teltonika antenna, same antenna work on LtAP mini with no problems. On LtAP GPS don’t work. I put it on roof, LTE work great but no GPS. I wait for 2h
I send setup, same setup work on LtAP mini. (disabla console port) and ue same port for GPS. Also try reboot, default config, beta relese of RoS but no luck.

6

If I chose serial(1) in GPS setuup, this log are for GPS:
14:56:03 gps,raw $ \085\0BDi1\000\901M\A911\08;<\8B\A1\E8&\F0\841\10\94\8A\C1\81,mp\8B\1B\00\B38-“K\10\81,\11\87Q\A1\CD!HP*\11|B!\B8\A3\0C}\9
8&\FA\E1\12A\84\AE\06\A4!)
14:56:04 gps,raw $\A1\8C\08\A4*\E2\C6T\A3!\11\B2\99\AA1\11QDH\17\11!\08\13d\C2\B5,\C6\A1\C8\A8\C4S
14:56:06 gps,raw $1<\8A\88F2\A9\A3K\9D|K\08\89\AC \t\FBC!\A9\ACa\A2\8BH2\1DI\851M4S1H\FF\C74L\84\80M\F2\C4\01\90,\C8\87\AC\B1\C3”\19[\04
14:56:08 gps,raw $\84!\8D\04\C41\E9*!\18D#\BB\C6f\D4\D2\E68\1E\11\87S\91\CC\0CE\E8\14b\8D\11
14:56:12 gps,raw @\85\E8\C6\06\B2\F1
14:56:15 gps,raw $1\D5\011\C4\CE\EFfY\A1,B\t\E2b\C4\0E\90\0C#\1B\81\08 \8D\C5!1\85x)\8C\C7e\92\C4Lf\E8\88J\11\91\C211Q\C41\11\1B\0Ca\8E(c\06 \B2\F1 14:56:16 gps,raw @N\C8\C4\C2\831\0CE\D8\18\8E\BC\84B\B2\D1 14:56:20 gps,raw $C!\8D\8C\C4\C9\02\C4Tk\9B\F4\082’!b\A7\F9\88\B6"Y\85!\04P*\10t\02!\B9\93\0C\86_\BA\E4\C7e\82\C4\F4\99\18\00\8As\00p\C2\C4
C2\B1\85!\00P\D0a\89\A1D\D2x\0B!!\0E\A1(9\89\E6\C5B\12\E1s\0B1\AC\11\92\91\AA13PT\C8\05\D1\08\BD\CD\A6X\99\D4 14:56:22 gps,raw @\85\E8!\88\97\A1 14:56:22 gps,raw $Q\1C(\89,*\14 14:56:23 gps,raw $\E2\C7dAcC\049!\8F\A0 \94\A9\89b!\8D\88D1!\89,\A69\19\93\CA!2\11\8C\C6F#\87\C9\02s\E4S\91\F19"1 14:56:24 gps,raw $\t\CE\A5\CD"{!\14\\88\E1\05)\E1\88\C2\A4z\192Y,!\11\B2\91\AA4\13AD\C8\05\11\8C\84>\DB\98T+ 14:56:26 gps,raw @\85\E8!\88\97\A1 14:56:28 gps,raw $b\049QD\D3\1A;\FF\C7e\82\C4\F4\99t\11\821\C9L\02\BDq\b\0CE\D8\18\86\BC\A4B\B2\B1 14:56:30 gps,raw $0 \80!M\0E!\8C\194\B1\A3\CB\A4%\A11\EC\A6ei1\18\A0!\8D&\B1\8A\9C 14:56:34 gps,raw $P!\04>\B1\D0\CD(\FF\97\D0\AE\C5!F\F1d\A1\8C \08~\02X\88\9C+K\8C\8C\11!I\D0\C4!1\91\F4\881\8F\A8\89w*\98\84*"\92!\A2\B5\t\AC\BD\E2\ED\C3\01\1C 14:56:38 gps,raw $\90\C4j\F1\07\B58\11\081\8C\01\CC\A40\A0R\84JvkA\CB\AF\C4\842Q8\A5\11\B1\8C\E1J6\99C\08\F1\CC!\02\8B\081\CD\F8\E6\C86q\08\1Ch\93\C7eA!!\A9:1\88\C4\01\93y{r\11\8C\A6z\9D\A1\8C!\91\92!!1\91:\04B\84f\931!\t\10\8C1\8D\91\82\9C\0FT!\8C!"K\08\F1\CC%\02\91\CC1\CD\D8s\08
14:56:40 gps,raw @,1=\18\A9\88\E1F)!\14A\94(!mW\8B\C8IL\C0\00!\t\A7+G*\A8\04\C4\9D\83!\E2\ED\C1X\8C\99\C49:\06\A0\0C\84:A\ACP\8B\A10\A6\D1,!

Any help ?

7

I have the same problem. I use antenna Mikrotik ACGPSA. Works perfect on LtAP mini..doesn´t work on LtAP LTE at all.
Please help

8

Also I notice problem with LTE connection on this board, and all boards that I have with Mikrotik R11e-LTE cards.
I have:
1PCS of M33G board with 2 R11e-LTE cards
1 PCS LtAP mini Lte Kit
1 PCS LtAP Lte Kit
1 PCS of wAP Lte Kit
1 PCS of wAP R with Huawei LTE card, ME909s-120

On all devices with Mikrotik LTE R11e-LTE card, LTE work ok (Upload/Download) BUT from some reason LTE connection goes down (not running state). Only reboot or Disable/Enable LTE interface make it goes UP (running) again. It work for some hourse and again goes down.
On devices with Huawei LTE card, connection newer goes down. All board are on latest firmware 6.45.2 and Re11-LTE are also latest ver “MikroTik_CP_2.160.000_v012”
SIM card are ok, APN also, so I think that problem is on MT Cards.

Anyone with same problem ?

9

I have a RBM33G with R11e-LTE (International) and it’s true that the connection goes down but in my case is only for 15-20 minutes, and the connection it’s running sometimes until for 1 week. This next month I’m going to buy the LtAP LTE kit and I’m gonna test it.

Regards.

10

In my case, it work no more then 1 day… Sometime 6h, 3h, sometimes even 30min… But when goes down won’t start alone, only reboot or disable/enable Lte

11

I’m curious where the GPS module is in relation to the sma connector. Can you send pics?

12

https://fccid.io/TV7LTAP2HND/Internal-Photos/Int-Photos-4173799

Regards.

13

Picture:
IMG_20190727_203625.jpg
IMG_20190727_203530.jpg
IMG_20190727_203439.jpg
IMG_20190727_203415.jpg

14

Cool photos, cool fcc images!

Can you ascertain what gps module is used? Maybe in the software somehow? Maybe there is a command you can send to the module over serial to tell you some diagnostic data or ID the module?

If we knew what module we could find the datasheet for it and the antenna specificaion.

I wonder if the antenna is active or passive or maybe it needs to be turned on somehow? Maybe its not a compatible amplifier in the antenna?

Where is the gps module on the board?

Why does it seem like this is normally information the vendor should provide and we are trying to reverse engineer a product just to get it to work? Doesn’t it seem strange to anyone else that the spec sheet says MMCX connector, the picture shows a photoshopped RP-MMCX connector, and then in real life its an SMA connector?

15

How I know there is no any command that can print that infos. I try with 2 different antennas, and put LtaP on roof on clear sky, but in any case no GPS data
I think that this is some softwer problem, that ROS don’t communicate with GPS module. Or GPS module don’t work.

Can anyone make GPS working on LtAP ?

16

[nemke@xxxxxxxxx] /system resource pci> print

DEVICE VENDOR NAME IRQ

0 01:00.0 Atheros Communications Inc. unknown device (rev: 1) 4
1 00:00.0 unknown unknov (rev:1) 0

[nemke@LoraWAN1] /port> print
Flags: I - inactive

DEVICE NAME CHANNELS USED-BY BAUD-RATE

0 serial0 1 auto
1 serial1 1 GPS auto

On this setup ONLY I have sooem logs of GPS but still don't work

jul/28 01:31:34 system,info gps device changed by nemke
jul/28 01:31:35 gps,raw @\01\C1/,(X
jul/28 01:31:43 gps,raw @"\F6\97\01\82'p%\0F\A3\F0\A8\08\FC\07+\E3\B8XvCF\10b\A1\19\10%&\90
jul/28 01:31:44 gps,raw @\99\C1/,(x
jul/28 01:31:46 gps,raw @\01\E1P\91\F6\12\81\FE\A1\02K\84F\88\96+\8D\1A\B3>4L\ABbL\D8
jul/28 01:31:54 gps,raw @\99\C1\0F,(x
jul/28 01:31:56 gps,raw $%^\ED\D9\18
jul/28 01:32:05 gps,raw @\84I\01\A1\02K\84F\88F\982\8D\ACP\E8
jul/28 01:32:05 gps,raw @\84I\01\A1\02K\84F\88F\982\8D\ACP\E8\00\80\EA1^\ED\F9x
jul/28 01:32:14 gps,raw $ F\00ac Hs\80\00\044p-\0F%\90\91\E3\FC\A1\02K\84F\88\96+\8D\1A\B3\1C4L\10\BC\A1\195\9C\t\81\FEWei\B9\04\80\90
jul/28 01:32:17 gps,raw @\8Ce\16p\88)\F6\B1\1A\92\01\08\1B\92\84\114W\D0\05%\B34\C1\17\91\F6[\FEWc\E90\C2\C0<a\B8 jul/28 01:32:25 system,info,account user nemke logged out from 192.168.88.90 via telnet jul/28 01:32:27 gps,raw $!^\ED\D9\18 jul/28 01:32:31 gps,raw @\E5\D2Q\FAUeip\85E\90 jul/28 01:32:34 gps,raw @\11\C1/,(X jul/28 01:32:37 gps,raw $\C1/,(\18 jul/28 01:32:41 gps,raw @b\E5\18\00\044p-\0Fe1\B1!\FC\A1\02\CB\84F\88F\98\12\AD,P\8C\02\82\9EEBe\10h\8D\F6Dea8G\BE#\BC\1A\A1\84\C4\10\F8b\0F\16\F0\A8)\F6Uei\B9\05\80\90 jul/28 01:32:43 gps,raw $aE\02\97 jul/28 01:32:43 gps,raw x4\A3\1C\C4\10\BCb/\91\F2\12\91\FC\C7*c\BA\186CG\10b\A9\19\10%7\81I\0Fg\F9h
jul/28 01:32:50 gps,raw @\11\C1/,h\18
jul/28 01:33:01 gps,raw @\11\C1/,h\18
jul/28 01:33:12 gps,raw @\19\C1/,(X
jul/28 01:33:14 gps,raw @\11\C1\0Fg\F9x
jul/28 01:33:17 gps,raw @"\F6\97\01\82'p-\0F\A3\F0F!\FC\D5\16\A4\F0i\D3\90
jul/28 01:33:23 gps,raw $\A3\94
jul/28 01:33:23 gps,raw \10\F6\97\01\C2\1A\8A\E6\05\F8\02!\FC\97%\EB<#
jul/28 01:33:27 gps,raw @\11\C1/,(X

17

Have you tried removing all other hardware? mcpie and usb?

Have you updated routerOS?

What is the output of system gps print?

What is value of: gps-antenna-select:

18

..
This looks like the wrong serial port speed.
Try 4800 Baud the default for GPS serial comms.
The output should look like -

https://www.researchgate.net/profile/Agnieszka_Lazarowska/publication/278123913/figure/fig4/AS:294246604132365@1447165265799/NMEA-data-received-from-GPS-eTrex-Legend-produced-by-Garmin-with-the-use-of-application.png

19

This document covers the MT3337 gps module, which is what is in the mini LtAP.

https://www.mouser.com/pdfdocs/rxmgpsrm.PDF

It also includes the commands to change the baud rate on the module.

20

[admin@xxxxxxx] > system serial-terminal port=serial1 channel=0

[Ctrl-A is the prefix key]


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LA £ ’9

Definitly GPS is on serial1 channel=0 NOT on serial0 likr in manual and LtAP mini.
But format of message from GPS module is wrong.
I try to set Baud Rate of serial1 (auto, 4800,9600, 115200) but still the same. I think that is need to send some commands to GPS module over “system serial-terminal” and that is it.

But I don’t know what GPS chip is used, this is more for Mikrotik support to fix it, if I am right about problem