SailmailSailMail is radio based e-mail system designed for boat owners operating beyond line-of-sight radio links to the internet. Much of its underlying technology is built upon the Winlink software originally developed by amateur radio enthusiasts.[1] Operation on SailMail network frequencies requires a PACTOR modem and an SSB radio.[2][3] Sailmail operators do not need to hold an amateur radio license, as is the case for the similar Airmail product.[4][5] As of December 2023 the annual membership cost was US $275.[6] References
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