11. Specification 
11-2 
2
Headway  30knots   
5) Solar Radiation (ADE) 
Infrared Radiation    500 watts / m
2
Ultraviolet Radiation    54watts / m
2
 
6) Icing (ADE) 
7) Precipitation (ADE) 
Up to 100mm / hour   
8) Wind (ADE) 
Up to 100knots in operation 
 
JUE-251 (ADE, BDE) 
1. Inmarsat FleetBroadband MES type 
2. Frequency  Transmission 
1626.5 to 1660.5 MHz, 1668.0 to 1675.0MHz 
Reception 
3. Maximum E.I.R.P 
4. G/T (Reception capacity) 
5. Antenna  Type 
 
Polarization 
 Right-Hand Circular Polarization (RHCP) 
Beam width 
40degrees, in 3dB down direction 
Radome 
Acrylonitrile Butadiene Styrene (AES) 
6. Modulation 
 
For voice 
π
7. Primary power  Voltage 
Connecting with EXT PSU:100/110 or 
89VAC to 266VAC 
+21.6VDC to +31.2VDC 
Current 
2 A or less in reception 
Maximum 
6.5A or less in transmission with 
connecting option 
Compass Safe 
Standard Compass: 0.6m 
Steering Compass: 0.7m 
8. Dimension  ADE 
 285mm  ×  h364mm 
  BDE 
×
×
9. Mass  ADE 
4.7kg 
  BDE 
4.5kg 
10. Environmental conditions 
1) Temperature  ADE 
BDE 
-25˚C to +55˚C (Handset -15˚C to +55˚C) 
2) Relative humidity 
3) Oscillation  Compliance with IEC60945 4th edition 
4) Ship's motion 
Motion  Amplitude 
Period