4020 HF Radio Mailbox

The development of the HF Radio Mailbox is based on the increasing demand for users to be able to communicate from wherever they are, including isolated locations connected only by HF radio, using the existing email client i.e. Outlook on their personal device, be it a smartphone, tablet or laptop, in much the same way as they can use the WiFi in their own office.

The mailbox acts as an Internet Gateway and provides a seamless portal to and from the Internet and HF radio network.

The HF Radio Mailbox provides direct and end to end mail synchronization over HF radio. No external computers or controllers are required over the LAN or WiFi connection. Remote Control and Configuration Management affords network managers the ability to add/drop stations using OTAR (over the air re-programming) without having to configure individual stations.

Example Network Diagram


  • Seamless operation with smart phone and tablet mail apps including Exchange, Outlook, Apple Mail, and Gmail.

  • Compatible with iOS, Android and Microsoft platforms.

  • No additional user training – no different to sending an email from your phone, tablet, or laptop.

  • Data Encryption and enhanced Link Security.

  • Priority and Emergency Messaging feature.

  • Fully automated link setup for HF Radio circuits.

  • Up to 19.2Kbps effective throughput rates*