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Telstra's network can typically extend 20 to 70 km out to sea from mobile base stations located near the coast. However, there are many factors such as the weather, tides, sea conditions and your antenna installation (type and height above sea level) that can significantly influence coverage, data speed and performance. As a result, you must not rely on the Telstra Mobile Network as a primary method of communication at sea. 

To assist with your mobile services at sea, you should use a directly connected external antenna – one that is omni-directional or a specialist marine antenna capable of 'tracking' to the best serving base station. The antenna should be mounted as high as possible on your vessel using marine-grade cabling and connections.

In order for a service at sea to work effectively, line of sight to the terrestrial base station is required. This is influenced by the height of the serving base station, land based obstructions and the general topography of the land, which can block signals. Coverage will not be reliable over the horizon from a mobile base station even though it may be usable at times.

We've created a short video to help you maximise your coverage while you're at sea:

Telstra’s new 4G satellite small cell technology 4GX-lite provides affordable access to 4G services on the Telstra mobile network for people living, travelling, and working in remote areas of Australia.

Ideal for:

• small communities in rural and remote Australia
• remote tourism hotspots
• roadhouses
• centres of agri-business

This new technology gives customers access to email, text, voice calls, browsing, basic data and voice calls on compatible devices in areas where coverage was previously challenging.

Want to know more?

Contact your Telstra Account Manager or Regional General Manager

A small cell is a miniature version of a standard base station which was traditionally used to boost coverage and capacity in densely populated urban areas.

In 2014, Telstra reworked the technology to launch small cells for 4G in small regional and rural communities where a full sized base station would not be feasible.

LTE small cells do not support 3G services, so customers need to use a handset with 4G voice calling (HD Calling) to be able to make a voice call when connected through an LTE small cell.

The underlying technology that enables 4G voice calling on these cells can be further extended by customers using Voice over WiFi that supports seamless voice handover between outdoor 4G l coverage and an indoor WiFi connection where 4G coverage may not reach.