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Topcon MG-A8 GNSS Antenna

The Topcon MG-A8 GNSS antenna is a rugged, compact, robust multi-purpose GNSS antenna. This is a dual-constellation, double-frequency antenna ideal for marine applications. It comes with L-Band DGPS corrections.



The MG-A8 GNSS antenna from Topcon is a compact, light weight and versatile antenna that’s suitable for marine and navigation applications. With INMARSAT signal rejection, this antenna provides amazing GNSS signal tracking while not being susceptible to signal jamming from other sources.

The MG-A8 antenna offers GPS L1/L2 signal reception, L-Band corrections and RTK capabilities making it ideal for applications such as dredging in inland river channels and waterways. It can also be used for other purposes such as for meter level navigation in DGPS mode and for RTK centimeter-level positioning in areas where there is a network of reference stations available to support this level of precision.


  • Ideal for Marine Applications
  • Tuned for mitigating in-band interference
  • Compact Dual Frequency package
  • Supports L-band and RTK
  • INMARSAT signal rejection

Technical Specifications

GPS: L1/L2
L-Band: Yes
Diameter: 89 mm
Height: 102.5 mm
Weight: 250 g (Antenna without adapter)
Operating Temperature: -40 °C to 70 °C
Storage Temperature: -40 °C to +70 °C
Humidity: MIL-STD-810G, Method 507.5 Procedure II, item 2.4.2. Table 507.5-IX.
Aggravated cycle
Dust/Water Protection: IP6x IEC 60529
IPx7 IEC 60529
Vibration: MIL-STD-810G, Method 514.6 Category 4-common carrier, Table 514.6 C-II, 1 hours per axis
MIL-STD-810G, Method 514.6 Category 21- watercraft- marine vehicles, Figure 514.6 D-9, 2 hours per axis
Shock Rating: Multiple shocks, IEC 60068-2-29, Test Eb, 25g / 6µc,1000 bumps per axis
Salt Fog: 5% salt solution concentration, 96 hours
RoHS Compliant: Yes
Power Consumption: 60 ± 5 mA (typical)
Input Voltage: +3 to +18 VDC


The MG-A8 GNSS antenna from Topcon is available through TerrisGPS. If you would like more information regarding this product, feel free to get in touch with us by completing the Request Pricing form.

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"Thank you for your prompt service. All seems to be working well again. Your techs were very helpful with the troubleshooting."
J.O. - Ground Navigation
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