Reliable, Resilient and Secure Satellite Communications & Assured PNT Solutions for Mission-Critical Applications
RockBLOCK APNT Iridium PNT PCBA for independent position & timing
RockBLOCK APNT

RockBLOCK APNT brings the Iridium PNT ASIC together with the supporting power, antenna, and host interfaces needed for evaluation, prototyping, and embedded integration. Rather than developing a dedicated carrier board around the ASIC, engineers can begin testing through USB-C and a virtual COM port, then transition to LVTTL UART or the board’s additional SPI, I²C, UART, and GPIO interfaces when incorporating the technology into a wider system. An external Iridium-capable antenna connects through u.FL, while the compact 59 × 36.5 × 7.7 mm PCBA weighs 10 g.

The board provides both an independent positioning source and precise UTC-referenced timing, including verified 1PPS performance for systems dependent on accurate synchronization. Iridium PNT signals are approximately 1,000 times stronger than standard GPS/GNSS signals, providing greater resilience when GNSS reception is degraded. RockBLOCK APNT can therefore supply position and timing information alongside existing GNSS, navigation, timing, or system-monitoring functions without requiring the underlying Iridium PNT receiver hardware to be designed from the ASIC level.

RockBLOCK APNT is scheduled for release in September 2026. 

Specifications:

Dimensions: 59 × 36.5 × 7.7 mm (2.32 × 1.44 × 0.30 in)
Weight: 10 g (0.35 oz)
Power consumption: 1.2 W max; 0.95 W idle
Interfaces: USB-C, LVTTL UART, SPI, I²C, UART, GPIO
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