Appendix A: Specification

47

Appendix A:Specification

2D 18" Radome Scanner Unit

General

Approvals

 

 

 

 

CE - conforms to

89/336/EEC (EMC), EN60945:1997

 

 

FCC - conforms to

Part 80 (47CFR) and Part 2 (47CFR)

 

 

 

 

 

 

Dimensions

Φ 468 x 227 mm (18.4 x 8.9 in)

 

 

 

 

 

 

 

Weight

6.5 kg (14.3 lbs)

 

 

 

 

 

 

 

Input Voltage

8.7 - 32 V DC (from display unit)

 

 

 

 

 

 

 

Power Consumption

28 W (9 W Standby)

 

 

 

 

 

 

 

 

Environmental

Waterproof to CFR46

 

 

 

 

Temperature range:

-10° to +55°C

 

 

 

Humidity limit:

up to 95% at 35°C

 

 

 

Maximum wind speed for satisfactory operation: 100 Kts

 

 

 

 

 

 

 

Maximum Range Scale

24 nm

 

 

 

 

 

 

 

 

 

 

 

 

 

Transmitter

 

 

 

 

 

 

 

 

 

Transmitter Frequency

9410 +/– 30 MHz

 

 

 

 

 

 

 

 

Peak Power Output

2.0 kW (nominal)

 

 

 

 

 

 

 

Transmitter

Solid-state modulator driving Magnetron

 

 

 

 

 

 

Pulse Length/PRF

0.08s/2250Hz (0.75 nm or less)

 

 

 

0.25 s/1500 Hz (above 0.75 nm & less than 6 nm)

 

 

 

0.70 s/750 Hz (6 nm or greater)

 

 

 

 

 

 

Standby Mode

Magnetron heater and control left on, all other services off

 

 

 

 

 

 

 

Duplexer

Circulator

 

 

 

 

 

 

 

 

 

 

 

 

 

Antenna

 

 

 

 

 

 

 

 

 

Antenna Type

Patch array

 

 

 

 

 

 

 

Beam Width (nominal)

5.2° horizontal, 25° vertical

 

 

 

 

 

 

 

Polarization

Horizontal

 

 

 

 

 

 

 

 

Antenna Side lobes

Less than -22 dB

 

 

 

 

 

 

 

 

Rotation Rate

24 rpm (nominal)

 

 

 

 

 

 

 

 

Page 55
Image 55
Raymarine Radar Scanner manual 2D 18 Radome Scanner Unit, General, Transmitter, Antenna