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
Lowrance Radar - 127-45 SimNet to NMEA2000 Adaptor Kit
RRP: $160.99
NOW: $153.00
Garmin GMR18xHD Radar
RRP: $3,199.00
NOW: $2,979.00
Furuno DRS4W 1st Watch Wireless Radar Dome - 4kw 24nm
RRP: $3,465.00
NOW: $3,395.00
Garmin GMR24xHD Radar
RRP: $4,599.00
NOW: $4,341.50
Simrad R3016 Radar Control Display
RRP: $4,732.20
NOW: $4,668.00
Simrad R2009 Radar
RRP: $2,197.80
NOW: $1,883.50
Precision-9 Solid State Compass
RRP: $999.00
NOW: $935.50
Raymarine Quantum 2 CHIRP Radar
RRP: $4,499.00
NOW: $4,129.00