A Catalyst Meter subscription give you everything you need to achieve accurate 1-meter GNSS positioning worldwide using a DA1 antenna.
Access to the Trimble Corrections Hub and use of Trimble corrections services is bundled with your Catalyst subscription. In online environments, the Corrections Hub will automatically use Trimble RTX corrections over the internet.
When working offline, the Hub will automatically switch to using RTX satellite broadcast corrections (via the DA1 antenna).
The latest coverage details for the RTX satellite broadcast service, is viewable here.