In the ever-evolving landscape of satellite communications, Holkirk Communications continues to lead the way with innovative solutions tailored to meet the demanding needs of military operations. Our latest inclined orbit tracking solution is a testament to our commitment to excellence and technological advancement.

Our inclined orbit tracking solution can be applied to any of our range of antenna systems including Manpack, Flyaway, Vehicle mount and fixed Vsat.

Why Do Satellites Go into an Inclined Orbit?

Satellites are initially placed in geostationary orbits, where they remain fixed relative to a point on the Earth’s surface. However, over time, the gravitational influences of the sun and moon cause these orbits to become inclined. This inclination results in the satellite moving north and south relative to the equator, forming a figure-eight pattern in the sky.
As satellites near the end of their operational life, maintaining a strict geostationary position becomes fuel intensive. By allowing the orbit to become inclined, operators can conserve fuel, extending the satellite’s operational life.

Benefits of Using Satellites in Inclined Orbits

1. Extended Satellite Life: By reducing the need for frequent north-south station-keeping manoeuvres, the remaining fuel can be used more efficiently, prolonging the satellite’s operational period.
2. Cost-Effective: Extending the life of existing satellites delays the need for costly replacements, providing significant financial savings.
3. Increased Coverage: Inclined orbits can offer better coverage at higher latitudes, which is beneficial for certain military operations.
4. Operational Flexibility: Utilizing inclined orbits allows for continued use of valuable orbital slots, ensuring uninterrupted service and strategic advantages.

Holkirk AIM Inclined Orbit Tracking Antenna Controller: A Game-Changer

The Holkirk AIM inclined orbit tracking antenna controller is designed to seamlessly track satellites in inclined orbits, ensuring reliable and continuous communication.

Here’s how it stands out:

Search parameter optimisation: As the actual position of the satellite will change with time of day and location of the earth station, our algorithm will calculate the best search window to find the inclined satellite reducing the time taken to locate and increase the reliability.

Satellite path LEARNING: Once the satellite has been located the ACU will perform a STEP TRACK procedure, for the first 10-20 minutes the AIM will instruct initial course PEAKs to determine direction and velocity of satellite. During a 24-hour period the AIM controller will periodically re-peak by jogging the antenna and the AGC signal strength of the beacon receiver monitored. The time and position of the antenna on bore sight are recorded in the AIM memory table which is stored in non-volatile memory. The interval between movements is determined by antenna size, the frequency.

Progressive MEMORY TRACK: After the 24-hour LEARNING phase the antenna control unit will drive the antenna motors to keep the system pointing at bore sight of the satellite irrespective of the beacon being present.
The accuracy of the Memory table is monitored by periodically making very small peaking movements of the antenna and analysing the beacon receiver AGC signal.

User-Friendly Interface: Designed for ease of use, the AIM controller guides users through the acquisition process with intuitive graphics and step-by-step instructions. Also, the controller has a range of unique features including:

• Power outage alarm and indication
• Manual intervention indication
• Activity log files
• Manal JOG
• 30 satellite database

Enhanced Operational Capability: By efficiently managing the tracking of inclined orbit satellites, the AIM controller extends the operational life of military satellites, maximizing the utility of sovereign networks.

Holkirk’s inclined orbit tracking solution, powered by the AIM STATION Antenna Controller, represents a significant advancement in satellite communication technology. It not only enhances the longevity and efficiency of military satellites but also ensures that critical communication links remain robust and reliable. As we continue to innovate, Holkirk remains at the forefront of providing cutting-edge solutions for the most demanding communication needs.