Military Standard MIL-STD-188-110B Interoperability and Performance Standards for Data Modems
Military Standard MIL-STD-188-141B Interoperability and Performance Standards for Medium and High Frequency Radio Systems
MIL-STD-188-141B CHANGE NOTICE 1
E-Mail Standards for HF Radio (Eric Johnson, SAIC)
Performance and Setup Guide for NOS TCP/IP Protocol Used on HF NVIS Paths (Wickwire, et al, MITRE)
NATO Standardization Agreement (STANAG) 5066 Profile for Maritime HF Radio Data Communications (description of HMTP is in this document)
RFC821 Simple Mail Transfer Protocol