Furuno 1954C - Page 227

SP - 2
2.3 MODEL1934C:
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)
2.5 MODEL1954C/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