Single Side Band (SSB) Radio
For quite some time, sailing on the ‘high seas’ meant having to use AM radio communication with a range of up to 200 miles, at least until until HAM and SSB radios became more reliable.
Nowadays, satellite phones are becoming more affordable and able to provide voice, text and email connection anywhere in the world. When going a long way offshore, using a satphone, inexpensive Iridium GO and a laptop for emails may result in SSB becoming largely redundant.
Join the debate at https://www.bwsailing.com/bw/offshore-communication-comes-of-age-for-the-occasional-passagemaker