Marine Radar
All RADARs work well in good weather!!! The maximum radar range is determined by target height, output power and antenna length. The higher the value the better the performance. So in bad weather if my antenna is longer and my output power is higher than yours, I should get better range than you.
For a complete technical explanation of radar technology, the components of a radar and a great summary of the basics, see RADARtutorial
Garmin GMR18xHD Radar
RRP: $3,199.00
NOW: $2,979.00
Garmin GMR24xHD Radar
RRP: $4,599.00
NOW: $4,199.00
Furuno DRS4D NXT UHD Digital Radar
RRP: $5,445.00
NOW: $4,899.00
Raymarine Quantum 2 CHIRP Radar
RRP: $4,499.00
NOW: $4,129.00
Lowrance Halo24 Pulse Compression Radar
RRP: $4,799.00
NOW: $4,423.00
B&G Halo24 Pulse Compression Radar
RRP: $4,799.00
NOW: $4,664.65
Simrad Halo24 Pulse Compression Radar
RRP: $4,799.00
NOW: $4,112.00