Iridium 9603N

Low Power Next Generation SBD Modem

View the Datasheet PDF


Small Transceiver, Huge Potential

With the smallest form factor of any commercial satellite transceiver available today, the 9603N is ideal for space constrained applications including monitoring, tracking and alarm systems.

A quarter of the volume and half the footprint of its predecessor, the 9602N, the 9603N combines the global coverage of the Iridium satellite constellation with the low latency of the Iridium Short Burst Data service to provide highly reliable satellite communications from pole to pole.

The 9603N redefines the spatial possibilities of satellite communications devices, delivering significant data capabilities and good value. Bringing more opportunities to expand the Iridium connected user base, the 9603N delivers:

  • Mobile-originated messages (up to 340 bytes)
  • Mobile-terminated messages (up to 270 bytes)
  • Low, uniform global latency (less than 1 minute)


  • Length: 31.5 mm
  • Width: 29.6 mm
  • Depth: 8.1 mm
  • Weight: 11.4 g


  • Operating temperature range: -40ºC to +85ºC
  • Operating humidity range: _ 75% RH
  • Storage temperature range: -40ºC to +85ºC
  • Storage humidity range: _ 93 % RH

RF Interface

  • Frequency range: 1616 to 1626.5 MHz
  • Duplexing method: TDD (Time Domain Duplex)
  • Input/output impedance: 50
  • Multiplexing method: TDMA/FDMA


  • Supply input voltage range: 5.0V +/- .5V DC
  • Supply input voltage ripple:
  • Idle Current (peak): 156mA
  • Idle Current (average): 34mA
  • Transmit Current (peak): 1.3 A
  • Transmit Current (average): 145mA
  • Receive Current (peak): 156mA
  • Receive Current (average): 39mA
  • SBD message transfer – average current: 158mA
  • SBD message transfer – average power: <= 0.8 W

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