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Appendix A: Technical specification
RD418D 18”Digital Radome scanner unit
General
Approvals
CE - conforms to
FCC - conforms to
Industry Canada - conforms to
1999/5/EC
47CFR Part 2 and Part 80
RSS138
Dimensions Φ521 x 247 mm (20.5 x 9.7 in)
Weight 9.5 kg (21 lbs)
Input Voltage 12 - 24 V DC (from multi-function display
unit)
Power Consumption 40 W (20 W Standby)
Environmental Waterproof to IPX 6
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 48 Nautical miles (Nm)
Transmitter
Transmitter Fre-
quency
9405
± 25 MHz
Peak Power Output 4.0 kW (nominal)
Transmitter Solid-state modulator driving
Magnetron
Range (Nm) Expanded Range (Nm) Pulse Width (ns) PRF (kHz)
0.125, 0.25 N/A
75
± 10ns
3.0
0.50, 0.75 0.125, 0.25
100 ± 10ns
3.0
N/A 0.5, 0.75
150
± 10ns
3.0
1.5 N/A
250
± 5%
3.0
3 1.5
350
± 5%
2.0
N/A 3.0
450 ± 5%
1.5
N/A N/A
600
± 5%
1.3
6.0 6.0
1.0 μs
± 5%
740 Hz
Standby Mode magnetron heater and control
left on, all other services off
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