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| What's Included In The Box? |
The Garmin GMR 21 Radome ships with the following items included: - GMR 21 Radome
- Mount Hardware Kit
- Power/Marine Network Cable (15 meters)
- Cable Connector Kit
- Cable Holder
- Cable Grommet
- Installation Manual
- Owner's Manual
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| Product Information |
| Manufacturer: |
Garmin |
Category: |
Accessories |
Type: |
Marine Radar |
| Model: |
010-00323-01 |
SKU: |
GMR21 |
UPC: |
753759060213 |
| Announced: |
April 4, 2006 |
First Shipped: |
October 23, 2006 |
Weight: |
57.000 lbs. |
| Family Series For This Item |
Garmin GMR 21 Radome | 
Garmin GMR 41 Radome | | | | |
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| Garmin GMR 21 Radome Description |
The GMR™ 21, along with the GMR 41, pack power, range, high-definition targeting, and plug-and-play connectivity in a space-saving 24-inch low-profile radome. The GMR 21, a sleek X-band digital color radar with a 24 nm range, features a narrow 3.6-degree horizontal and 25-degree vertical beamwidth for the clearest target definition in all weather conditions.
Digital Performance
Unlike competitive designs, which require a dedicated display/processor unit, all Garmin radar processing takes place in the radome — via a digital signal processor. Data is presented on Garmin’s Marine Network GPSMAP 3000 series chartplotter/multifunction displays (MFDs). The result: greater efficiency and redundancy, since any chartplotter on the network can display and control the radar. Digital processing also allows for more precise recognition, enhancement, and filtering of radar echoes — making the finished display easier to read and interpret.
Easy to Use
The GMR 21 features automatic and manual sensitivity and tuning controls, including gain, sea clutter, and rain clutter — which allows boaters to spend less time tuning the unit and more time navigating. The unit also boasts selectable interference rejection, which mitigates the effect of nearby radar transmissions.
Advanced Features
As an aid in locational awareness, GMR 21 radar images can be overlaid on your moving map chartplotter display. In addition, you can configure your display by splitting the screen to show overlay and standard radar simultaneously.
To aid in collision avoidance, the GMR 21 also offers Mini Automatic Radar Plotting Aid (MARPA) capability, which allows boaters to track the bearing, course, speed and predicted closest approach (by both time and distance) of up to 10 targets. MARPA functionality requires a GPSMAP 3000 series MFD and an optional heading sensor.
Plug-and-play Connectivity
The GMR 21 communicates with the Garmin Marine Network through a waterproof 100-megabit plug-and-play proprietary network — which gives you the ability to expand your boat’s system as needed.
The Garmin Marine Network can provide vital situational awareness data like GPS, radar, sonar, and near real-time graphical weather data and audio channels directly on the GPSMAP 3000 series MFDs with a subscription to XM WX Satellite Weather and Radio.
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| Garmin GMR 21 Radome Features & Tips |
Here is a listing we have put together of some of the common GMR 21 Radome features,
along with a few user tips that you may find of help for this particular item. | - Unit Dimensions: 24'' diameter radome (710mm), 8'' high, 24 RPM
- Radar Scanner Weight: Unit 26 lbs
- Beam width: 3.6° maximum horizontal, 25° nominal vertical
- Receiver downconvertor noise figure: 4db
- Power Output: 2kW
- Power Input: 10-35 Vdc 25W
- Maximum/Minimum Range: 24nm/20m
- Range Scales (Range Rings): 1/8nm (1/32nm) to 36nm (9nm)
- Operating Temperature Range: -15°C to 70°C, relative humidity up to 90% at 35°C
- Range Ring (bearing accuracy): 20 meter +/- 1.5% of range scales, whichever is greater (1 degree)
- True or Relative Motion Mode
- Variable Range Markers: 2 user adjustable, capable of floating
- Electronic Bearing Lines: 2 user adjustable, capable of floating
- User waypoints and navigation lollipop, with ability to create waypoints on radar display
- Guard Zone Alarm: 2 Zones, user adjustable
- Zoom Mode: 2x and 4x
- Trails: Short, Medium and Long
- Timed Transmit: Variable Transmit and Standby Times
- Off Center Function: Look Ahead, Auto Shift and Manual
- Cable Length: 15 meters
- Waterproof: ICE 60529 IPX-7
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| Customer Comments |
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