Leica Mojo Mini Antenna

GPS / RTK / GNSS
1

image

Hi,
I have an old Leica mojo mini gps system. Can the antenna be reused with agopengps

2

Hello,

The antenna seems to be a Novatel AG-STAR : https://hexagondownloads.blob.core.windows.net/public/Novatel/assets/Documents/Papers/AG-STAR/AG-STAR.pdf. She as an RS232 serial bus and output NMEA 0183 . So yes, it could be reused, you need something like this to convert RS232 to USB to connect to your computer.
Here is the datasheet of the antena: https://hexagondownloads.blob.core.windows.net/public/Novatel/assets/Documents/Manuals/OM-20000149/AG-Star%20User%20Manual%20OM-20000149%20v5.pdf.
See §3.1 for communication throught serial port.
But:

  • This antena is L1 only
  • She is SBAS only (Egnos, WAAS or other depending where you are in the world): no RTK available

Math

3

Thanks

It currently connected to the Leica Mojo Mini via Bluetooth. Could Bluetooth be used again for agopengps?

4

Don’t know. If your antena connected via Bluethoot appear in Windows like a com port it should be possible.

You also have to take care : I don’t know what NEMA messages ouputs the antena ? For AOG you should limit the NEMA messages to:

  • GGA and VTG
    or
  • RMC
    All the other messages shall be deactivate. So you have to configure the antenna like this: don’t know how to do that, you should check the available documentation: Ag-Star™ | Support | NovAtel

Math

5

I used a Novotel Ag Star on Bluetooth this year.