Nera M-4
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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


Antenna: -25 - +55oC

Modem: -25 - +55oC

Note that battery efficiency is degraded under low temperatures

Electromagnetic compatibility

EN 300 339 TBR 44


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.dealer_p.gif (1989 bytes)


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Copyright 1999 Donegal Holdings Ltd., Inc.
Last modified: May 15, 2006