What is HF Fax (High Frequency Fax / Radiofax)?

For HF Fax, please see the entry on Radiofax.

HF Fax (or High-Frequency Fax) is another term for Radiofax, and the terms can be used relatively interchangeably.

More Fax Technology Descriptions:

• G4 Compression – Compression format for fax signals
• Radiofax HF Fax and Weatherfax -Fax Transmissions over Radiowaves
• T.38 -ITU recommendation for faxing over IP
• Fax Demodulator – Unit for Intercepting Fax Communication