Pure HF: Digital HF Communication System for Mission-Critical Communications
A digital system for receiving long-distance HF communications, designed for the most demanding operational environments.Pure HF: Digital HF Communication System for Mission-Critical Communications
A digital system for receiving long-distance HF communications, designed for the most demanding operational environments.
Operational superiority depends on the ability to transmit and utilize information at the right time. In contested or degraded environments, maintaining critical communications is essential for coordinating actions, supporting decision-making, and ensuring the continuity of operations.
Critical Communications in a Constrained Environment
In a context of persistent threats, military operations take place in environments where communications infrastructure may be unavailable, disrupted, or difficult to deploy.
Satellite communications, which are essential for certain missions, also constitute a form of infrastructure whose availability can be compromised.
Military forces need complementary, robust, and rapidly deployable solutions capable of maintaining operational communication capabilities over long distances.
Maintain the
chain of command
Ensuring the flow
of critical information
Resistant to jamming
and interference
Adapting to all
operational terrains
Managing the Communication Chain and Operational Resilience
The performance of HF communications does not depend on a single piece of equipment. It depends on mastery of the entire chain of components: transmission to wave propagation channels, antennas, reception, signal processing, and transmission of information to networks.
At Ineo Défense, we possess end-to-end expertise across this chain to build customized, sovereign, and resilient communication capabilities, thereby ensuring the continuity of the chain of command in contested environments.
Pure HF, a digital HF network designed for field use
Pure HF digitizes the entire HF band as close as possible to a receiving antenna or the HPI antenna—which is specially designed to optimize system performance—and then transmits the signals via fiber optics to processing units that route the information to users.
This architecture allows antennas to be deployed remotely, adapts their placement to terrain constraints, and centralizes signal processing.
The result of several years of expertise in operational HF communications, it provides the Armed Forces with a high-performance, compact, flexible, and resilient communications capability.
An architecture designed for operational performance
Ready to optimize your performance?
Deploy Pure HF wherever the mission requires it
Whatever your needs, our Pure HF solution adapts to any environment:
Base
Operational
OPEX
Working Closely with the Armed Forces
Urban Environment
In a bay with dedicated monitoring
Operations Center
within an existing infrastructure
A Controlled Grip
Minimum requirement: 16 antennas measuring 40 x 40 m; can be set up with as few as 8 antennas for smaller areas with 5 to 10 meters of clearance.
A larger area can improve performance.
HPI Antenna: The Antenna That Optimizes Pure HF Performance
Compact, rugged, and high-performance, the HPI is a ruggedized active HF receiving antenna with excellent sensitivity, designed to withstand demanding operational environments and high-power electromagnetic signals, including lightning.
The HPI antenna is ideally suited for transmissions with low or intermediate elevation angles.
Ground-wave and sea-wave transmissions, as well as medium- and long-range sky-wave (ionospheric) transmissions, are the HPI antenna’s specialty.
Learn more:
Detailed architecture | Deployment configurations | HPI antenna specifications | Network integration options.
Pure HF + HPI Antenna: From the signal to the network, we manage the entire chain:
so that communications remain available when they are essential
FAQ - Pure HF
What is Pure HF?
Pure HF is a digital long-range HF communications reception system designed to maintain critical communications when conventional broadband infrastructure is unavailable, disrupted, or difficult to deploy. It ensures the continuity of operational communications in the most demanding environments.
Why Use HF Communications Today?
HF remains an essential capability when terrestrial or satellite networks are unavailable or have degraded access. It enables the establishment of resilient long-distance communications without relying on complex infrastructure.
What types of organizations can benefit from Pure HF?
The solution is primarily intended for armed forces, operations centers, government agencies, and operators that need to maintain strategic communications in degraded or contested environments.
How does Pure HF differ from a traditional HF architecture?
Pure HF digitizes the entire HF band as close as possible to the antennas that make up a network, then transmits the signals via fiber optics to the processing units. This architecture allows the antennas to be located remotely, optimizing their deployment. Centralized signal processing enables high performance in terms of communication range and resistance to both intentional and unintentional interference.
What expertise does INEO Défense offer?
INEO Défense has expertise across the entire HF communications chain: wave propagation, antenna design and integration, reception, digital signal processing, and network integration. This comprehensive approach ensures a coherent and optimized solution.
Can Pure HF be deployed quickly in the field?
Yes. The solution was designed to adapt to operational constraints and be deployed in various contexts, whether at an operational base, on a field mission, in an urban environment, at an operations center, or in a transportable shelter.
How much space is needed to install a Pure HF station?
The installation generally requires a minimum footprint of approximately 40 x 40 meters, with 5 to 10 meters of clear space around the antenna. A larger area can help optimize radio performance, while a solution based on 8 antennas reduces the footprint while maintaining good performance.
What are the advantages of the HPI antenna?
The HPI antenna is a rugged HF receiving antenna designed for demanding operational environments. Robust and compact, it is resistant to high-power electromagnetic signals as well as the effects of lightning.
Is Pure HF compatible with existing infrastructure?
Yes. Thanks to its fiber-optic architecture, which is antenna-agnostic, Pure HF can be integrated into an existing infrastructure and interconnected with communication systems already in service.
How does Pure HF contribute to communications resilience?
By combining digitization at the edge of an antenna network, signal transport over fiber optics, advanced digital processing, and network integration, Pure HF reduces vulnerabilities and maintains communication capabilities even in highly constrained environments.
Does Pure HF replace satellite communications?
No. Pure HF is a complementary solution that diversifies available communication channels and ensures operational continuity when access to satellite capabilities is limited or unavailable.
Do you have a need? Let's talk about it!
Do you have a need? Let's talk about it!
