Ham can do text and digital voice over e.g. D-STAR. <a href="https:&#x2F;&#x2F;en.m.wikipedia.org&#x2F;wiki&#x2F;List_of_amateur_radio_modes" rel="nofollow">https:&#x2F;&#x2F;en.m.wikipedia.org&#x2F;wiki&#x2F;List_of_amateur_radio_modes</a><p>Encryption to obscure your communication is technically against the rules, but things like D-STAR need a proprietary decoder (the spec isn&#x27;t open) to be decoded, so some people consider that encryption even though it&#x27;s pretty popular and not being shut down: <a href="http:&#x2F;&#x2F;www.amateurradio.com&#x2F;encryption-is-already-legal-its-the-intention-thats-not&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.amateurradio.com&#x2F;encryption-is-already-legal-its-...</a>