Nal Technologies Expands Apnt Timing Backup With Altm-t
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NAL Technologies, known as Naltec and the manufacturer of the device, has introduced ALTM-T as the latest addition to its Alternative Location and Timing Module line. The unit is a timing and location backup module for APNT systems that need a dependable fallback when other timing sources or standard GPS signals become unreliable.
Why Precision Timing Backup Matters
Large networks and critical infrastructure depend heavily on satellite navigation for accurate timestamp delivery and synchronization.
- Electrical grid operations
- Financial platforms and transport systems
These are typical examples of environments where even a short timing failure can disrupt software workflows and damage transaction integrity. From what I have seen in GPS-dependent systems, timing loss behaves a lot like bad map coordinates: once the reference drifts, the rest of the network starts making poor decisions very quickly.
| Feature | Specification |
|---|---|
| Timing performance | Below 50 ns RMS |
| Form factor | M.2 3042 B-key |
| Power draw | Under 600 mW |
ALTM-T is designed as an ultra-low SWaP receiver for space-limited infrastructure and other hardware where weight and power use are tightly managed. Its compact format also points to easier integration in embedded systems where a secondary timing source needs to fit into existing hardware with minimal redesign.
How ALTM-T Supports Resilient Infrastructure
APNT works as a backup timing layer for critical infrastructure when GNSS or GPS service becomes unreliable.
APNT works as a backup timing layer for critical infrastructure when GNSS or GPS service becomes unreliable.
Rob Gillette, APNT solutions director at NAL Technologies, said APNT serves as a companion layer to GNSS and GPS, which remain central to modern infrastructure. He warned that if the Global Positioning System fails without a secondary timing source in place, the effects can spread fast across energy networks and financial operations. With ALTM-T, the goal is stronger synchronization resilience through APNT by Naltec.
The embedded receiver uses the Iridium PNT signal as a complementary source for position and timing. According to our research, that signal is about 1,000 times stronger than conventional GNSS and GPS signals. In practical terms, that matters indoors and in places where interference is a real concern, whether the cause is accidental noise or a deliberate cyberattack against communications infrastructure.
Iridium PNT as a Stronger Signal Layer
ALTM-T leans on Iridium Communications technology to deliver a more robust satellite-based timing reference through a communications satellite network. I read that as a useful redundancy layer, much like adding a cleaner overlay to a noisy GIS base map. The stronger signal helps maintain accuracy and precision where standard satellite reception struggles.
Naltec says it has shipped more than 13,000 Iridium PNT-enabled receivers since the first ALTM release in 2019. The ALTM-T module is now commercially available and shipping.
Applications, Variants, and Technical Data
Based on the details provided here, ALTM-T is aimed at timing-sensitive infrastructure such as grid environments, financial systems, transport networks, and data center equipment. The announcement does not describe deployment with turbine flow meters, and nothing in this release suggests that ALTM-T is a flow measurement instrument or a module designed around that type of hardware.
The same release also does not identify different ALTM-T variants, model options, or separate generations beyond placing it within the broader ALTM product line. If you need technical data, the most direct source would be the official ALTM-T product page, datasheet, or related documentation from NAL Technologies. No other flow measurement instruments from this manufacturer are mentioned in the material provided here.
