2. Introduction of JUE-501/JUE-251 
Chapter 2    Introduction of the JUE-501/JUE-251   
2. Introduction of the JUE-501/JUE-251 
2.1 Outline 
The JUE-501/JUE-251 Mobile Earth Station (MES) is composed of Above Deck Equipment (ADE) 
and Below Deck Equipment (BDE).   
The ADE consists of Antenna Assembly, Above Deck Unit and Radome, while the BDE consists of 
Main Unit (MU) and Handset.     
 
JUE-501/JUE-251 is an Inmarsat digital satellite communication terminal for voice  service  (4kbps 
Voice), G3FAX and legacy analogue modem service (64kbps 3.1kHz Audio), (*)UDI/RDI
, maximum 
432kbps(JUE-501) or 284kbps(JUE-251) Standard IP service, 8kbps, 16kbps, 32kbps,64kbps, 128kbps 
and (*)256kbps 
Streaming IP service and Short Message Service (SMS). 
[(*) is available only for JUE-501.] 
 
JUE-501/JUE-251 is shipped with strict quality control and inspection to provide the high quality for 
consumers.  JRC would like to believe you to make long use of the terminal with your satisfaction. 
 
Network service is managed by Inmarsat co. or other network service providers. Network service may 
be changed or terminated without prior notice due to the circumstances of the network service 
providers. 
 
If your JUE-501/JUE-251 has trouble or problem in your operation, please contact the dealer or agent 
you purchased from.