Orbcomm - Hardware

Hardware

Many different devices are available for connecting to the Orbcomm networks, most of them being simple RS-232 modules with an antenna and a power supply. However there are more advanced devices available that have a simple programmable computer and GPS built in. Such modules are generally used for asset tracking. Very basic transceivers cost around $150 while others can cost over $400.

Devices for connecting to the Orbcomm network are self-contained units that can be connect to sensors, remote terminal units, or other equipment, usually via a serial connection. Unlike cellular or some other satellite networks, there are no embedded (chipset) devices available for the Orbcomm network.

Antennas: Orbcomm's spectrum of 137 to 150 MHz is at a much lower frequency than other commercial mobile satellite operators, which operate in the L-band (at 1.5-1.6 GHz) and S-band (at 2.0-2.5 GHz), and thus Orbcomm can operate with lower power, but also requires a much larger antenna than other networks such as Iridium or Globalstar. Most antennas are basic "whip" antennas that can be several feet long. Smaller, more compact designs are available but with performance trade-offs.