Furuno 1824C manual Transceiver Module

2.3MODEL1934C:

2.3.1	Radiator	Slotted waveguide array
2.3.2	Polarization	Horizontal
2.3.3	Antenna Rotation	24 rpm nominal
2.3.4	Radiator Length	100 cm (XN10)
2.3.5	Horizontal Beamwidth	2.4°
2.3.6	Vertical Beamwidth	27°
2.3.7	Sidelobe Attenuation	-20 dB or less (within ±20° of main-lobe)
		-28 dB or less (±20° of main-lobe or more)
2.4	MODEL1944C:
2.4.1	Radiator	Slotted waveguide array
2.4.2	Polarization	Horizontal
2.4.3	Antenna Rotation	24 rpm nominal
		High brilliance monitor: 24 rpm nominal only
2.4.4	Radiator Length	120 cm (XN12)
2.4.5	Horizontal Beamwidth	1.9°
2.4.6	Vertical Beamwidth	22°
2.4.7	Sidelobe Attenuation	-24 dB or less (within ±20° of main-lobe)
		-30 dB or less (±20° of main-lobe or more)

2.5MODEL1954C/1964C:

2.5.1	Radiator	Slotted waveguide array
2.5.2	Polarization	Horizontal
2.5.3	Antenna Rotation	24 or 48 rpm nominal
2.5.4	Radiator Length	120 cm (XN12, 24 or 48 rpm),
		180 cm (XN13, 24rpm only)
2.5.5	Horizontal Beamwidth	1.9° (XN12), 1.2° (XN13)
2.5.6	Vertical Beamwidth	22°
2.5.7	Sidelobe Attenuation
	XN12:	-24 dB or less (within ±20° of main-lobe)
		-30 dB or less (±20° of main-lobe or more)
	XN13:	-24 dB or less (within ±10° of main-lobe)
		-30 dB or less (±10° of main-lobe or more)
3	TRANSCEIVER MODULE
3.1	Frequency and Modulation 9410 MHz ±30MHz (X band), P0N
3.2	Peak Output Power	M1824C: 2.2 kW nominal,
		M1834C/1934C: 4 kW nominal, M1944C: 6 kW nominal,
		M1954C: 12 kW nominal, M1964C: 25 kW nominal
3.3	Modulator	FET Switching Method

SP - 2