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GSM Terminal (Modem) GM114
GSM-modem GM114 is suited for transmission of data streams (differential corrections, raw measurements) in the GNSS station networks via cellular network. Major advantage of GSM RTK over classical RTK using radio modems is that acquiring license of radio frequency usage is not required; also direct line of sight between reference station and rover is not needed, and the price of GSM modem set is less than that of a radio modem.
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Industrial Geodetic Systems R&DDescription
Having a built-in storage battery GM114 can work in the data transfer mode for about 6 hours without external power supply. Built-in Bluetooth module allows to perform work without using cable connections.
NTRIP protocol support in the receiver is not needed! An implementation of NTRIP protocol in the modem allows legacy receivers that do not have NTRIP support, such as Trimble 5700, to be used in the NTRIP and TCP/IP modes.
Modem is compact and enclosed in metal case which provides reliable protection during surveying works. On the GM114 face panel all diagnostic indication required for work, power button and SIM card slot are present.
Comparing with the previous modem version, storage battery capacity is 4 times more, and also after a customers’ requests support of chained connection of several modems is implemented.
Base features of GM114 software
Operatiion modes: «Base» and «Rover»
Connection modes: CSD and GPRS
Communication over NTRIP protocol as a caster, server, or client
Dynamic DNS support
Practical AT command interface
Connection profiles and other configuration is stored in non-volatile memory
Advantages
Dynamic DNS support
Built-in NTRIP protocol
TCP/IP support
GSM CSD support
Distinctive features
«Base» and «Rover» operation modes
Aluminium profile water-proof case
Built-in high-capacity storage battery
Ability to connect several modems in chain
NTRIP protocol support in the receiver is not needed! An implementation of NTRIP protocol in the modem allows legacy receivers that do not have NTRIP support, such as Trimble 5700, to be used in the NTRIP and TCP/IP modes.
Modem is compact and enclosed in metal case which provides reliable protection during surveying works. On the GM114 face panel all diagnostic indication required for work, power button and SIM card slot are present.
Comparing with the previous modem version, storage battery capacity is 4 times more, and also after a customers’ requests support of chained connection of several modems is implemented.
Base features of GM114 software
Operatiion modes: «Base» and «Rover»
Connection modes: CSD and GPRS
Communication over NTRIP protocol as a caster, server, or client
Dynamic DNS support
Practical AT command interface
Connection profiles and other configuration is stored in non-volatile memory
Advantages
Dynamic DNS support
Built-in NTRIP protocol
TCP/IP support
GSM CSD support
Distinctive features
«Base» and «Rover» operation modes
Aluminium profile water-proof case
Built-in high-capacity storage battery
Ability to connect several modems in chain