Raymarine’s new HD Digital radome scanners combine the power and clarity of
HD Digital signal processing with an ultra-compact scanner suitable for all
types of vessels. Compatible with C-Series Widescreen, E-Series Classic,
E-Series Widescreen and G-Series Multifunction Displays, these radomes offer a
256-color radar display and the clearest, most lifelike radome presentation
available from any radome scanner.
The RD418HD feature the same adaptive digital receiver technology found in
our open array antennas. By adjusting automatically to changing environmental
and sea conditions, the HD Digital radomes provide crisp, accurate contact
echoes at short ranges, as well as outstanding long range performance up to 48
nautical miles.
Antenna Type |
Patch Array |
|
Beam Width (nominal) |
4.9° horizontal, 25°
vertical |
|
Polarization |
Horizontal |
|
Rotation Rate |
24 rpm (nominal) |
|
CE Approval |
Conforms to 1999/5/EC |
|
FCC Approval |
Conforms to 47CFR Part 2
and Part 80 |
|
Dimensions |
521 x 247 mm (20.5 x 9.7
in) |
|
Weight |
9.5 kg (21 lbs) |
|
Input Voltage |
12 - 24 V DC |
|
Power Consumption |
60 W (25 W Standby) |
|
Waterproof |
IPX6 |
|
Temperature Range |
-10° to +55°C |
|
Humidity Limit |
up to 95% at 35°C |
|
Maximum operating wind
speed |
100 kts. |
|
Maximum range Scale |
48 nm |
|
Range (nm) |
Pulse Length (ns) |
PRF (kHz) |
0.25 or less |
75 |
3 |
0.5 |
100 |
3 |
0.75 |
100 |
3 |
0.75 expanded |
150 |
3 |
1.5 |
250 |
3 |
3 |
350 |
2 |
3.00 expanded |
450 |
1.5 |
6.00 or greater |
1.0 µs |
740 Hz |
IF Frequency |
70 MHz (nominal) |
|
Receiver Characteristic |
Linear |
|
Receiver Noise Figure |
Less than 5 dB (including
Low Noise Converter/Limiter & IF Receiver) |
|
Receiver Bandwidth |
Matched digital filter for
each pulse length |
|
Transmitting Frequency |
9405 +/– 25 MHz |
|
Peak Power Output |
4.0 kW (nominal) |
|
Transmitter |
Solid-state modulator
driving Magnetron |
|
Standby Mode |
magnetron heater and
control left on, all other services off |
|
Duplexer |
Circulator |
|