Review for "M20 RTK GNSS USB Dongle with SMA antenna"

M20 RTK GNSS USB Dongle with SMA antenna

M20 All-frequency High Precision GNSS USB Dongle with SMA antenna connector. This product comes with 1 years worldwide warranty

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We would like to proof-test this dongle, but we find it hard to understand its working - so hope you will be able to clarify.
Our scenario includes the dongle connected to an iOS device and used as an RTK rover, with correction data obtained from the Internet paid service. Is it possible to stream the NTRIP data, obtained by the iOS device directly from the NTP caster, to the dongle through the USB connection, simultaneously with the reception of position? Should be, but not clear from the documentation.
The same questions apply to the other dongles you produce, we might consider them too. Guess the answer would be the same.
Many thanks in advance


Shop owner reply (02/02/2025):
Dear Raxx
Yes, you can. All modern receivers (Bynav M20/M21, Unicore UM980/UM982, Ublox F9P/F9R, Septentrio Mosaic X5/H/T) have separate protocol selection for reception and transmission. Moreover, it is possible to receive and transmit via several protocols simultaneously.
There is a link in the description above where you can download "Bynav Interface Protocol". The required command is described in "3.1.11 INTERFACEMODE". It will be "INTERFACEMODE COM1 AUTO AUTO" (set by default). Then order the required NMEA packets for transmission.