Mobile Iridium Satellite PTT Radio The ICOM IC-SAT100M is a dedicated Satellite Push-to-talk (PTT) Radio, and is the only Satellite PTT Radio offering real-time communications over satellite at the push of a button between a group of individuals, each of whom can be anywhere on the planet. The IC-SAT100M uses the Iridium satellite communication network, which covers the entire globe, including both poles. Subscription contracts are required for using the IC-SAT100M. The actual Coverage Region depends on the subscription selected. Depending on the country or region, carrying and/or use of the IC-SAT100/M may be prohibited. Not for sale in the UAE.