NERA
M-4 WORLD COMMUNICATOR
Key features 
•  64 kbps data
•  4,8 kbps
compressed voice (low cost)
•  ISDN
compatibility
•  USB (Universal
Serial Bus) interface *
•  Infrared
interface *
•  Self explanatory
man machine interface
•  Built in
Lithium-Ion battery
•  Handy cordura
bag supplied with the terminal.
•  Built-in DECT
base station
Value added service options 
•  Secure voice:
STU III *
•  Supplied with
each terminal a CD ROM
with easy access to manual, applications,
user guidance and other
useful information
•  In addition the
ownership of a Nera World Communicator
gives access to the
Nera website where more updated
information is available
•  Pole mounted
antenna for more permanent
installations
System specification 
Tx frequency: 
1626.5 – 1660.5 MHz 
Rx frequency: 
1525 – 1559 MHz 
Channel spacing: 5/40 KHz 
EIRP: 25 dBW 
G/T: -7 dBK  -1
DECT: 1880 – 1900 MHz 
Size and weight 
Dimensions collapsed: 
H=68mm W=275mm D=355mm 
Antenna folded out: 
H=340mm W=774mm D=12mm 
Weight (including battery): 
3.9kg (3.4kg without battery) 
Environmental conditions 
Operational: 
Antenna: -25 - +55oC 
Modem: -25 - +55oC 
Note that battery efficiency is  degraded
under low temperatures
Electromagnetic compatibility 
EN 300 339  TBR 44
Interfaces 
•  ISDN (RJ45-50)
•  RS-232 (9-pin
DSUB)
•  IR port
•  USB port
•  19 VDC input
External options 
•  Line adapter for
analogue devices such
as group 3 faxes
•  DC/DC converter:
Input range 10-32 VDC
Power consumption 
Standby time: >100 hours 
Transmit: 40 W maximum 
Charging: 40 W maximum 
* No driver/software available in first  version
(software upgrades available later)
Subject to change without notice 
  
 H.M.S. Communications, Inc.'s products
and services are provided by Stratos, an international multi-network mobile satellite
service provider offering a complete range of communications solutions. 
   
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