Iridium 9770 Transceiver


The Iridium 9770 is Iridium’s 7th L-band Transceiver and our 2nd Iridium Certus Transceiver.  With the introduction of this transceiver, Iridium also introduces a new approach to supporting teams that utilize our transceivers to engineer, certify, and sustain end-user products. We are centralizing the information onto this site (‘Iridium For Partners’, IFP) and also providing a centralized process for submitting questions regarding this product and tracking answers.

Information about the capabilities and services offered viathe Iridium 9770 are available (here)[Exploring the Iridium 9770].  The Iridium 9770 offers the same classes of services as available on the larger Iridium Certus Transceiver, the Iridium 9810, but scaled to match the lower data rates available on this smaller transceiver.  Voice services, packet data services, streaming data services, and messaging are all available in this transceiver.

Information about the process of developing a product that integrates an Iridium 9770 is available to VAMs.  All products that use the Iridium network are required to be certified before they can be operated and sold.  The requisite process for certifying the product with Iridium to operate on the Iridium Certus network is available (here )[Certifying an Product Integrating an Iridium 9770 Transceiver]
When designing the Iridium 9770, Iridium engineering anticipated a variety of use cases and worked to ensure that the design will work in these configurations and conditions. Technical Notes are available to VAMs to help demonstrate how to use the Iridium 9770 to meet some typical configurations and conditions.

If you would like to contact us regarding technical questions concerning the Iridium 9770 or having your product certified, please complete the Submit Inquiries Form [ADD HYPERLINK}

Exploring the Iridium 9770 Transceiver

The Iridium 9770 can be viewed from several perspectives.

  • The set of communications services it provides.
  • The software interface used to control, manage, and access these services.
  • The hardware interface provided to physically mount, provide power, and interface to the digital and RF interfaces.

The set of services are defined by the provisioning of the unit.  Over time, Iridium may alter or introduce additional services through firmware upgrades.  Details of the service available with the Iridium 9770 are available (here)[Iridium 9770 Services]

The software interface provides standards-based interfaces to access the services.  More information the details of these software interfaces are discussed in the (software ICD) [Iridum 9770 Software ICD]

The hardware interface for the Iridium 9770 transceiver is documented in the (hardware ICD) [Iridium 9770 Hardware ICD].  It provides details about the two transceiver connectors (digital connector and RF connector), their relative placement and tolerances, mounting holes, and thermal considerations.


Iridium Certus provides a suite of services.  The Iridium 9770 Transceiver is a multi-service transceiver. These include:

Postpaid & Secondary Packet Data Service

  • IPv4 packet data with an MTU of 1500+xxx bytes with IP Masquerading
  • Support GRE and IPSEC as well as ICMP, UDP, and TCP protocols
  • Weighted Fair Queuing and/or Expedited Queueing

Voice Service

  • Each line has an assigned MSISDN, and can place standard voice calls as well as emergency voice calls (i.e., 911, 999, and 112 dial patterns).
  • Each MSIDN can receive voicemail services when the Iridium 9770 does not receive or accept incoming calls
  • Each line can support Iridium Certus HQ or SQ audio

Streaming Data Service

  • IPv4 packet data with an MTU of 1500+xxx bytes with IP Masquerading
  • Bandwidth is given priority over all other packet services

Interfaces to Access Various Services in Production Designs

  • Three UARTs, capable of running up to 932 kbaud, supporting PPP to access IP packet data services and streaming data services,
  • Two digital audio lines, to support the audio path for two Iridium Certus voice lines and
  • One UART, running at 230 kbaud, for configuration/control and to access the Iridium Certus messaging service
  • SIM interface, to support connecting to a local Iridium Certus SIM


Certifying a Product Integrating an Iridium 9770 Transceiver


Iridium has been granted an FCC radio license to operate our constellation using the waveforms employed by the Iridium 9770 Transceiver. The Iridium 9770 will obtain certifications for compliance with FCC, Industry Canada, and ETSI.

For products that require regulatory approvals from other jurisdictions (e.g., Japan, Korean, Australia, Brazil, etc), Iridium plans to obtain certifications for compliance with their regulatory requirements after the product’s initial launch.


Submitting Inquiries