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Lowrance Broadband 4G Radar
See more targets where it matters most with 100% clarity
and enjoy the benefits of zero radiation hazard.

Reinventing Radar

Lowrance has pioneered a new standard of dome radar, first with the award-winning BR24, and more recently with the Broadband 3G™ Radar. The latest innovation from Lowrance breaks even our high standards. Lowrance now offers two Broadband Radar™ choices; the outstanding Broadband 3G Radar and the brand-new, truly exceptional Broadband 4G™ Radar.

Sharpen Your View

Forget everything you thought you knew about radar. The Broadband 4G Radar reinvents the standard, transforming the way you’ll navigate for good. Beam Sharpening technology allows for twice the target separation resolution of a standard 18-inch pulse dome. And with 50-percent more range than the Broadband 3G Radar and superior target detection, Broadband 4G Radar delivers the ultimate in navigational safety.

Plug & Play

Lowrance Broadband Radar models are compatible with all Lowrance HDS® multifunction displays. Simply plug your Broadand Radar into a 5-, 7-, 8- or 10-inch HDS for an immediate heightened sense of situational awareness.

Low RF Transmission for Safe, Flexible Installation

Transmitting less than 1/5 the power of an average mobile phone and 1/10,000 the power of a typical pulse radar, Broadband 4G™ Radar can be safely mounted anywhere onboard your boat.

Instant Navigation

No need to wait 2-3 minutes for a magnetron to warm up. Broadband Radar technology is 100% solid-state, providing navigation in seconds with InstantOn™ technology.


  • Beam Sharpening View razor-sharp images at every range with Broadband 4G Radar - similar to a 3.5-foot open array pulse radar.
  • More Range 50-percent more true range than Broadband 3G Radar. Now you can see crystal-clear targets up to 32 nautical miles away and inside storm cells more than 17 nautical miles away.
  • High-Speed Mode - Select 36 RPM for instant updating at less than 1 nautical mile.
  • Unrivalled Short Range - Outstanding performance where it matters most, within 200 feet (zero main bang).
  • MARPA Target Tracking - Track up to 10 targets as standard.
  • Dual Guard Zones - Protect yourself from more angles.
  • Automatic Clarity - Proven auto harbor and offshore modes including directional clutter rejection
  • Extremely Low Emissions - Safer than any other radar currently on the market and emitting less radiation than a mobile phone – allowing it to be mounted anywhere.
  • InstantOn™ Viewing - Produces immediate and accurate on-screen images.
  • Low Power Consumption - Ideal for recreational boats of any size.
  • Quick Installation - No reason to open the dome, no tune or zero-mile adjustment, and no radar-licensed technician required.

Lowrance Broadband 4G Radar Specifications:

Max. Range Scale
36 nm
Min. Range Scale
1/32 nm (200 ft.)
Warm-up Time
16 seconds
Rotation Speed
24/36 RPM
Beamwidth (Horz/Vert)
2.6° / 25° (Effective)
Mounting [S,F,B]
Bolts: 4x30xM8 - 304 stainless steel
Operating Temperature
-13° to +131°F/-25° to +55°C
Diameter [mm]
19.2 in \ 488 mm
+95°F/+35°C, 95% RH
Waterproof Standard/rating
Product Height [mm]
Product Weight
16.31 lbs \ 7.4 kg
Power Consumption
20W (Typ.) @ 13.8vDC
Power Supply (Supply Voltage)
9 to 31.2vDC (12/24 Volt systems) Reverse polarity protection vDC
Power Consumption Standby
2.9W(Typ.) @ 13.8vDC
Data I/O Protocol
High Speed Ethernet
Transmitter Power Output
165mW nominal
Transmitter Frequency
X-band - 9.3 to 9.4GHz
CE, FCC (ID: RAY3G4G), IC: 4697A-3G4G
Interconnection Cable
33ft/10m standard with RI10 thin custom (Max 30m)
Interface Heading
SimNet or NMEA 0183 with cable kit into display
Antenna Receiver Noise Figure [dB]
Antenna Rotation Speed
24/36 rpm +/- 10% RPMs
Antenna Vertical Beam Width
25 °
Radar Wind Resistance
51 m/sec (Max:100 Knots)
Radar Warm Up Time [minutes]
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Lowrance 4G radar


Lowrance 4G radar screen


Lowrance Broadband 4G Radar

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