
Iridium Satellite Network
Coverage Everywhere
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About Iridium
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Iridium's Advantages
Iridium's core value in rescue, battlefield, and ship scenarios lies in its unparalleled reliability and global coverage:
Global coverage without blind spots, mission accomplished: Whether in the polar ice sheets, the vast oceans, or on the front lines of the battlefield, Iridium's polar orbital satellite network ensures that communications can be established anywhere on Earth. This is critical for emergency medical rescue, because lives may hang on the line, and any communication black spots cannot be accepted.
Excellent stability in bad weather: Iridium uses L-band frequency band, with excellent signal penetration, and is almost unaffected by bad weather (such as strong winds, heavy rain, heavy snow, and thick fog). At the rescue site or in severe sea conditions at sea, when other communication methods fail, Iridium can still provide stable and reliable voice calls and data transmission, ensuring that medical instructions and patient information can be transmitted uninterruptedly.
Highly portable and low power consumption: Iridium terminal devices are small and light, many of which can even be handheld, and consume very little power, with long battery life. This makes them ideal for mobile medical teams, individual combat personnel or small boats, and can be used for long periods of time in environments without stable power sources.
High security and durability: Iridium networks are known for their encryption technology and rugged equipment design. They can meet the high security and reliability requirements of military and critical mission communications, ensure the confidentiality of sensitive medical data during transmission, and operate normally in harsh environments.
In summary, Iridium is an irreplaceable "lifeline" in remote medical scenarios such as rescue, battlefields, and ships, which have extreme requirements for communication reliability, global coverage, and tolerance to harsh environments. It provides stable, ubiquitous, and weather-resistant "bottom-line" communications, especially for voice calls, text messages, and low-speed critical data transmission.
However, if the remote medical system needs to transmit high-resolution images, conduct real-time high-definition video consultations, or process large amounts of data, the bandwidth of Iridium will become a significant limitation. In this case, it may be necessary to consider combining other high-speed satellite systems (such as Starlink) as the main data transmission channel, and use Iridium as an absolutely reliable backup communication to ensure that the most basic communication link can be maintained under any circumstances.
N3D is Iridium VAR
N3D is the only Iridium Value Added Reseller (VAR) in Taiwan. We not only provide Iridium satellite communication services but also assist many domestic industrial products in applying Iridium satellite communication technology.


How Does Iridium Cover the Entire Earth?
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The Iridium constellation consists of a fully meshed network of 66 low-earth orbiting (LEO) cross-linked satellites, and 9 in-orbit spares ready to replace any unserviceable satellite. This is how Iridium ensures that every region on the globe is always covered by at least one satellite.
Iridium satellites orbit at an altitude of 485 miles, circling the earth once every 100 minutes, travelling at 16,832 miles per hour. Each satellite is cross-linked to four other satellites: two satellites in the same orbital plane and two in an adjacent plane. These links create a dynamic network in space, where messages are transmitted between Iridium satellites, making it resilient to natural disasters, ground-independent, and establishing a highly secure and reliable link.
