Official PayPal Seal

Garmin GWX-70 Digital Color Weather Radar System

Garmin GWX70 Color Radar System


Part Number: 010-00676-01



Premier Avionics is an Garmin GTN650 and G600 Demo Dealer

  • Overview
  • Specifications
  • In the Box
  • Compatible Devices

With its advanced solid-state transmitter design eliminating the need for life limited magnetron tubes, the Garmin GWX 70 comprises the very latest and most reliable technology in onboard weather radar.

Scan with Doppler Accuracy

Bringing full-color storm cell tracking to your compatible Garmin multifunction display, this Doppler-capable weather avoidance tool combines excellent range and adjustable scanning profiles with precision target definition — for accurate, easy-to-interpret, weather analysis in the cockpit. With pilot-adjustable horizontal scan angles of up to 120°, you can easily focus scanning on the areas you want to watch, while vertical scanning lets you focus on storm tops, gradients and cell buildup at various altitudes. Plus, Weather Attenuated Color Highlight (WATCH™) can identify areas beyond the radar's capability that may contain even more hazardous areas of precipitation.

GXW70 vertical and horizontal scan views

Reduce Pilot Workload

On compatible displays, altitude compensated tilt in the GWX 70 reduces your workload by needing to manually adjust the radar’s tilt; simply set it once to the tilt angle you want, and it will automatically adjust with any change in altitude. Also, when interfaced with your aircraft’s analog gyro or AHRS system, the GWX 70 offers full radar stabilization to 30 degrees of pitch and roll. The GWX 70 also has a ground mapping mode that can assist in a number of applications -- including navigation. Ground mapping mode provides a real-time depiction of the terrain below you.

GWX 70

Experience Solid-State Reliability

With its digital design, the GWX 70 provides reduced power consumption and extended life when compared to previous generations of magnetron-based radars. While magnetron tubes degrade or burn out over time, the solid-state technology in the GWX 70 maintains a consistent weather picture its entire lifecycle – all while only using 40 W of power. What’s more, the all-in-one antenna/receiver/transmitter unit is available in 10", 12" and 18" radomes, so it easily installed on a wide variety of aircraft configurations.

Upgrade to Advanced Features

The GWX 70 you buy today is prepared for the technologies you might need tomorrow. You can unlock a wealth of new functionality in your GWX 70 like ground clutter suppression, which identifies radar ground returns and removes them from the display – taking the guesswork out of interpreting what's on your screen. And optional turbulence detection can determine areas of turbulence that might contain particulate, like rain or hail. These capabilities are available through simple software upgrades, eliminating the need to purchase new hardware in the future.


Operational mode: Weather (WX): Green, Yellow, Red (Magenta is reserved for display of the optional turbulence detection function); Ground Mapping (MAP): Cyan, Yellow, Magenta, Blue

Display ranges: Selectable 2.5, 5, 10, 20, 40, 80, 160, and 320 nm (MX 20; GMX 200). Selectable 2.5, 5, 10, 20, 40, 60, 80, 100, 120, 160, 240 and 320 nm (G1000, G600/G500, GTN 750 series). NOTE: Software updates for radar display are required to take advantage of all the advanced capabilities of the GWX 70 – such as Doppler turbulence detection and ground clutter suppression. These features may not be available or supported on all products. Check with your Garmin dealer for compatibility options.

Performance index:

  • 18-Inch Antenna: 227 dB
  • 12-Inch Antenna: 221 dB
  • 10-Inch Antenna: 218 dB

Weather avoidance:

  • 18-Inch Antenna: 320 nm max.
  • 12-Inch Antenna: 320 nm max.
  • 10-Inch Antenna: 285 nm max.

RX sensitivity: -126 dBm MDS

Manual gain: +12 to - 64 dB (G1000; G600/G500; GTN 750 series); +3.5 to - 28 dB (MX 20; GMX 200)

Antenna bandwidth:

  • 18-Inch Antenna: 5.3 degrees
  • 12-Inch Antenna: 7.8 degrees
  • 10-Inch Antenna: 9.0 degrees

Horizontal scan angle: Pilot adjustable; 20, 40, 60 or 120 degrees (G1000; G600/G500; GTN 750 series); 20 or 120 degrees (MX 20; GMX 200)

Scan centerline: Pilot adjustable

Scan rate: 12 looks per minute

Manual tilt: +/- 15 degrees

Vertical scan angle: 60 degrees (G1000; G600/G500; GTN 750 series); 10 – 60 degrees (MX 20, GMX 200)


Mechanical Size: Width: 8.0 in. (20.3 cm.) diameter at base; Depth: 6.3 in. (16.0 cm.); Antenna: 10 in. or 12 in. diameter flat-plate

Unit Weight:

  • 18-Inch Antenna: 12.7 lbs. (4.31 kg)
  • 12-Inch Antenna: 9.5 lbs. (4.31 kg)
  • 10-Inch Antenna: 9.3 lbs. (4.22 kg)

Environmental: Operating temperature range: -55 Degrees C to +70 Degrees C; Humidity: 95% non-condensing Altitude Range: -1,500 feet to 55,000 feet; TSO Compliance: C63d, Class 7 Environmental Category: RTCA DO-160F

Electrical: Power Requirements:
14/28 Vdc; 2.0amps
Transmitter Power: 40 Watts nominal, 36 Watts minimum
Output Frequency Range: X-Band (9.3 to 9.5 GHz)
Pulse Width: 1.6, 3.2, 6.4 or 13.6 Microseconds
STC Logic: Effective to 80 nm
Extended STC: 80 nm to 320 nm
(Modifies targets from end of STC to maximum range)
Stabilization: +/- 30 degrees
combined pitch, roll and manual tilt
Max. Altitude: 55,000 feet (unpressurized)
Target Alert: (G1000, G600/ G500 and GTN 750 series only) Annunciates targets (between 80 and 320 nm) that are beyond displayed range on radar screen
Interface: Garmin HSDB (G1000, G600/G500 and GTN 750 installations); ARINC 429/453 (MX 20, GMX 200 installations)

System includes:

  • GWX 70
  • Installation kit

Package contents may vary per version. See Premier Avionics for more information.

Part Number
GTX 33 System remote mount with installation kit and pilot
GTX33 w/ ES System remote mount with installation kit and pilot's guide
GTX 33D System remote mount w/diversity and installation kit and pilot's guide
GTX 33D w/ES System remote mount with installation kit and pilot's guide