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ModemOS is a 2SIM GSM/UHF * modem with Steady Stream technology. Unlike most modems, automatically switching between SIM cards depends on the stability of receiving the correction stream. Parameters like signal/noise ratio and status of Internet connection don't influence on switching. The built-in 2 W UHF modem* allows you to use ModemOS as a common radio modem. Intelligent selection of the most reliable correction stream between GSM1, GSM2 and UHF - ModemOS automatically switches the type of communication depending on the availability or absence of the UHF or GSM signals. You can create the list of GNSS base stations with UHF transceivers with appropriate coordinates and UHF parameters. Thanks to the built-in GPS/GLONASS receiver, ModemOS automatically detects the nearest UHF translator and connects to it. WebUI Easy setup and measurements in the browser of any of your device with Wi-Fi 2SIM 3G GSM Automatic switching between SIM cards 2W UHF* *optional

OS-213 is a dual-antenna or three-antenna GNSS receiver with an external inertial unit GKV-10*. It is designed to determine a high-precision attitude. Internal loosely coupled GNSS+INS filter* provides stable high-precision trajectory for 2 minutes after the loss of satellite signals. OS-213-INS is perfect for applications as hydrography, unmanned vehicles and other tasks requiring the determination of high-precision object's motion vector. 574 channels GPS: L1 C/A, L1/L2 P, L5 BeiDou: B1, B2, B3 GLONASS: L1, L2 Galileo: E1, E5a, E5b Dual-antenna Azimuth: (0.2/R)° Roll or Pitch: (0.4/R)° 2SIM GSM/UHF* With the function of automatically switching to the most stable correction stream WebUI Easy setup and measurements in the browser of any of your device with Wi-Fi 8-32 GB* Internal memory up to 32GB GNSS+INS High-precision trajectory for 2 minutes after the loss of satellite signals * - optional

OS-303 is a three-antenna GNSS receiver designed to determine a high-precision attitude. OS-303 is perfect for applications as hydrography, unmanned vehicles and other tasks requiring the determination of high-precision object's motion vector. 496 channels GPS: L1 C/A, L1/L2 P, L5 BeiDou: B1, B2, B3 GLONASS: L1, L2 Galileo: E1, E5a, E5b Three-antenna Azimuth: (0.2/R)° Roll or Pitch: (0.4/R)° 2SIM GSM/UHF* With the function of automatically switching to the most stable correction stream WebUI Easy setup and measurements in the browser of any of your device with Wi-Fi 8-32 GB* Internal memory up to 32GB -- High-precision trajectory for 2 minutes after the loss of satellite signals * - optional

OS-111 is a universal multifunctional L1 GNSS receiver with an external antenna connection. It can be used as a Base or Rover in the RTK, Stop&Go, Static modes and for high-precision trajectory and events obtaining. OS-111 is an excellent solution for geophysical, geodetic, photogrammetry and other applications that require a high-precision solution. 200 channels GPS: L1 / BeiDou: B1 / GLONASS: L1 / SBAS: WASS, EGNOS, MSAS L1 RTK High-precision solution in real time up to 8 km from the Base 2SIM GSM/UHF* With the function of automatically switching to the most stable correction stream WebUI Easy setup and measurements in the browser of any of your device with Wi-Fi 8-32 GB* Internal memory up to 32GB 10 H* Built-in battery provides up to 10 hours of battery life * - optional

OS-112 is a universal multifunctional L1/L2 GNSS receiver with an external antenna connection. It can be used as a Base or Rover in the RTK, Stop&Go, Static modes and for high-precision trajectory and events obtaining. OS-112 is an excellent solution for geophysical, geodetic, photogrammetry and other applications that require a high-precision solution. 574 channels GPS: L1 C/A, L2C, L2P, L5 BeiDou: B1, B2, B3 GLONASS: L1 C/A, L1P, L2 C/A, L2P Galileo: E1, E5a, E5b SBAS: WASS, EGNOS, MSAS, GAGAN RTK&GO High-precision solution in real time or post-process 2SIM GSM/UHF* With the function of automatically switching to the most stable correction stream WebUI Easy setup and measurements in the browser of any of your device with Wi-Fi 8-32 GB* Internal memory up to 32GB 10 H* Built-in battery provides up to 10 hours of battery life * - optional

OS-113 is a multi-frequency GNSS receiver with an external antenna. It is ideal for recording RAW data. And it can also receive/transmit corrections as Base or Rover. OS-113 is perfect for any high-precision applications where Raw data collecting or RTK positioning are required. 574 channels GPS: L1 C/A, L2C, L2P, L5 BeiDou: B1, B2, B3 GLONASS: L1 C/A, L1P, L2 C/A, L2P Galileo: E1, E5a, E5b SBAS: WASS, EGNOS, MSAS, GAGA RTK&GO High-precision solution in real time or post-process 2SIM GSM/UHF* With the function of automatically switching to the most stable correction stream WebUI Easy setup and measurements in the browser of any of your device with Wi-Fi 8-32 GB* Internal memory up to 32GB Strong Event Forget about false events while working with external devices * - optional