940-2157-0 Hemisphere 6654.00  

Hemisphere AtlasLink Smart Antenna (940-2157-0)

Hemisphere Part Number: 940-2157-0

Hemisphere AtlasLink Smart Antenna
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Hemisphere AtlasLink GNSS Smart Antenna

Hemisphere Atlas Link smart antenna, pre-configured to use the Atlas correction service to achieve 10cm, 30cm, or 100cm realtime horizontal accuracies. Includes 10Hz firmware unlock by default.

AtlasLink was designed from the ground up to excel in challenging environments and is ideal for use in a variety of applications including precision agriculture, machine control, construction, mining, and marine.

AtlasLink™ is an all-new multi-GNSS, multi-frequency smart antenna preconfigured to receive corrections from Hemisphere’s Atlas™ global corrections service. AtlasLink paired with Atlas provides you with the easiest way to receive Atlas corrections via the industry’s most powerful multipurpose GNSS smart antenna either directly from AtlasLink, or into your existing receiver.

AtlasLink is supported by our easy-to-use Atlas Portal (www.atlasgnss.com), which empowers you to update firmware and enable functionality, including Atlas subscriptions for accuracies from meter to sub-decimeter levels.

The AtlasLink requires a power and data cable, shown under Accessories. This must be purchased separately.


GNSS Receiver Specifications

Receiver Type Dual-frequency, multi-GNSS RTK
Signals Received GPS, GLONASS, and BeiDou
Channels 372
GPS Sensitivity -142 dBm
SBAS Tracking 3-channel, parallel tracking
Update Rate
  • 10 Hz standard
  • 20 Hz optional (with subscription)
Timing (1PPS) Accuracy 20 ns
Cold Start < 60 s typical (no almanac, ephemeris, position, or RTC)
Warm Start < 30 s typical (almanac and RTC)
Hot Start < 10 s typical (almanac, ephemeris, position and RTC)
Maximum Speed 1,850 kph (999 kts)
Maximum Altitude 18,288 m (60,000 ft)

Positioning Accuracy

Horizontal Accuracy
  • RMS (67%)
    • RTK: 10 mm + 1 ppm
    • L-Band: 0.08 m
    • SBAS (WAAS): 0.3 m
    • Autonomous, no SA: 1.2 m
  • 2DRMS (95%)
    • RTK: 20 mm + 2ppm
    • L-Band: 0.16 m
    • SBAS (WAAS): 0.6 m
    • Autonomous, no SA: 2.5 m

L-Band Receiver Specifications

Receiver Type Single Channel
Channels 1530 to 1560 MHz
Sensitivity -130 dBm
Channel Spacing 5.0 kHz
Satellite Selection Manual and Automatic
Reacquisition Time 15 seconds (typical)


Serial Ports 2 full-duplex RS-232, CAN
Interface Level Atlas GNSS (webUI)
Baud Rates 4800-115200
Correction I/O Protocol Hemisphere GNSS proprietary, RTCM v2.3 (DGPS), RTCM v3 (RTK)
Timing Output 1PPS, CMOS, active low, falling edge sync, 10 kΩ, 10 pF load
Event Marker Input CMOS, active low, falling edge sync, 10 kΩ, 10 pF load


Input Voltage
  • 7-32 VDC with reverse polarity operation
  • Korea: 12 VDC
Power Consumption 4.5 W nominal (L1/L2 GPS/GLONASS/BeiDou; L-band)
Current Consumption 0.38 A nominal (L1/L2 GPS/GLONASS/BeiDou; L-band)
Power Isolation No
Reverse Polarity Protection Yes
Antenna Voltage Internal Antenna


Operating Temperature -40°C to +70°C (-40°F to +158°F)
Storage Temperature -40°C to +70°C (-40°F to +158°F)
Humidity 95% non-condensing
Shock and Vibration
  • Mechanical Shock: EP455 Section 5.41.1 Operational
  • Vibration: EP455 Section 5.15.1 Random
EMC CE (ISO 14982 Emissions and Immunity), FCC Part 15, Subpart B, CISPR 22
Enclosure IP67


Dimensions (L x W x H) 15.8 x 15.8 x 7.9 cm (6.2 x 6.2 x 3.2 in)
Weight < 1.15 kg (< 2.53 lbs)
Status Indicators
  • Power
  • GNSS Lock
  • Bluetooth
Power/Data Connector 12-pin male (metal)
Antenna Mounting
  • 1-14 UNS-2A female adapter
  • 5/8-11 UNC 2B adapter
  • flat mount available

Compatible Accessories

  • Atlas Correction Signal
  • DGPS Accessories
  • DGPS Firmware Unlock
  • Hemisphere Part Number:
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