KNOWLEDGE
Knowledge Base
Some things about satellite communication are decided by physics, not by brand. These notes set them out, with the parameters, so you can check the numbers yourself.
13 articles
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Launch Pad, N-9704, RockBLOCK 9704 or your own design: which should you choose?
Launch Pad to evaluate, RockBLOCK 9704 to build fast, your own design at volume.
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What do you need to build an Iridium 9704 product?
Three parts: the device, IMT CloudConnect delivery and your own server.
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What problems does IMT CC actually solve?
Cloud queues, message tracking, re-ringing, large-file segmentation and storage.
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Why can an IMT message take several minutes?
Session setup, the transfer itself and waiting for a satellite; 100 KB takes about 3 minutes.
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Moving from the Iridium 9603 to the 9704: what has to change?
The 9704 uses IMT, not SBD: the board, the serial protocol and the cloud integration all change.
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Iridium 9604 vs 9603: what is the difference?
The 9604 combines SBD satellite, LTE-M cellular and GNSS in one module; both use SBD for satellite.
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Where can the IMT 9704 be used? Mountain rescue, maritime and monitoring
Wherever there is no mobile network but a photo, voice clip or larger file is needed.
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Why do 9704 products need certification, and what does it cover?
Iridium ICE certification is required before sale, and it covers the whole product.
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What are the limits of the Iridium 9704 Launch Pad?
32 KB of RAM, demo-oriented examples, and no approval for commercial deployment.
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How should power be designed for the 9704?
Keep the voltage steady during transmission; size the battery by data volume.
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How does the Iridium 9704 compare with Starlink and OneWeb?
Different jobs: Starlink is broadband; the 9704 is small, frugal, rain-tolerant messaging.
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How do Iridium 9603 messages get to your own server?
Iridium delivers by email, DirectIP or CloudConnect; SBD CC then forwards to your server over HTTPS.
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Who is the RockBLOCK 9704 for?
Teams that want a product quickly without designing RF or certifying from scratch.
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