SBD
Iridium Short Burst Data
The workhorse for tiny, infrequent payloads. Ideal for heartbeats, positions, and low-power sensors. Still the right choice under roughly 7–10 KB per device per month.
Iridium services we operate
Short Burst Data and Iridium Messaging Transport.
DeltaVue is a value-added reseller for both of Iridium’s core IoT transports. We help you pick the right one, then run it.
IMT
Iridium Messaging Transport
The successor path for larger IoT messages — from a few bytes to 100 KB — with topic-based pub/sub and cloud-native delivery on Certus 9704 and 9770 modules.
VAR
Why buy airtime from us
Activation, pooling, suspension, and invoice alignment with how your fleet actually behaves — not a reseller who only forwards a rate card.
| Decision | SBD | IMT |
|---|---|---|
| Typical payload | Tens to hundreds of bytes | Hundreds of bytes to 100 KB |
| Best monthly volume | Very small (often under 10 KB) | Medium IoT traffic |
| Common modules | 9602 / 9603 and SBD terminals | Certus 9704, 9770 |
| Power profile | Extremely low | Low, module-dependent |
| Delivery model | Message / mailbox | Topics, pub/sub, cloud queues |
| DeltaVue role | Airtime + decode + command | Airtime + topics + decode + command |
We will not pretend one service wins every design. If SBD is cheaper for your duty cycle, we will say so.