Raymarine Radar Scanner Owner's Handbook Manual page 57

Appendix A: Specification
Antenna
Antenna Type
Beam Width (nominal) 3.9° horizontal, 25° vertical
Polarization
Antenna Side lobes
Rotation Rate
Receiver
IF Frequency
Receiver Characteristic Semi-log
Receiver Noise Figure
Receiver Bandwidth
Patch array
Horizontal
Less than -22dB
24 rpm (nominal)
60 MHz (nominal)
Less than 5 dB
(including Low Noise Converter/Limiter & IF Receiver)
12/3/1 MHz
49