4’ Open Array Radar for the best in Long and Short Target Detection
Simrad’s Pulse Compression Radar Halo-4 combines the best characteristics of traditional pulse and FMCW broadband radar systems. The Halo-4 is a low magnetic emission and radiation radar that uses low power pulsed transmissions that meet the upcoming Low Emission standards. This makes the Halo-4 safe to run in anchorages and marinas.
With its Beam sharpening and target separation control the Halo-4 provides unmatched target separation and clarity whether you are looking at birds or buoys. The Halo-4 has a Dual Range operation function that appears like two separate radars monitoring different ranges with 
independent control over both. In addition the Dual Range mode of the Halo-4 will allow the user to track up to 10 MARPA targets in each range for a total of 20 targets.
The Halo-4 is a 4’ array that can rotate up to 48 rpm in high speed and provide 64 nautical mile coverage. The Halo-4 does not depend on a magnetron but rather a solid state transceiver resulting in no manual tuning as the magnetron ages. The pedestal of the Halo-4 contains a brushless motor driver which means again less maintenance and longer use because there are no brushes to wear out and replace.
The solid state construction of the Halo-4 enables it to provide instant on in just 16-25 seconds instead of 2 to 3 minute warm up time of the magnetron radars. The Halo- has 5 usage modes; Custom, Harbor, Offshore, Weather, and BIRD that enable it to be switched from one type of target and range to another quickly.
The Halo-4 is not for all Simrad systems though but if you have an NSS evo2 or NSO evo2 multifunction display this may be a radar option you would like to pursue.
In the Box - Key Features
Simrad Halo-4 Box Contents
Each Simrad Halo-4 comes with:
- Simrad Halo 4' Open Array Antenna
- Radar Pedestal
- RI-12 IF Box
- 20M Scanner Cable
- Two-Year Warranty
Simrad Halo-4 Key Features
- 4’ Open array 64 nautical mile
- Beam sharpening with Target separation control
- Low magnetic emissions and radiation
- Custom, Harbor, Offshore, Weather, and BIRD modes
- InstantOn - Radar is ready in 16-25 seconds from power-on