ALE

Automatic Link Establishment

Provides HF radios the ability to automatically link using the best frequency.

• MIL STD Modem Primer (PDF)
• ALE Info File (PDF)

See the ALE Networks Page for a listing of ALE networks and their frequencies in use

Questions on this topic can be posted on the SW Data Decoding forum.

Current Usage

This mode is one of the fastest growing modes on HF. Numerous government and military agencies, both here and abroad, have been noted using ALE on the UDXF Yahoo group

Synonyms

• Mil-Std-188-141A
• ALE-2G

Software and Hardware Decoding

Hobby Level Software

• ALE decoding for the IPhone / IPad
• Hoka Code 3-32P
• Hoka Code 300-32P
• MultiPSK
• Multimode (Mac software)
• SkySweeper
• Sorcerer

Professional Equipment/Software

• go2decode
• go2monitor
• Hoka 300-32
• Krypto 500
• MARS ALE downloads and forum
• Many of the newer WaveCom modems
• Wavecom W-Code
• Wavecom W-Spectra

Audio Sample / Waveform

• What does an ALE signal sound like?
• ALE sample on Utility World
• ALE Waveform
• ALE 2G Waterfall

Related Links

• International Amateur Radio ALE Channel List
• HFLink.org is the primary resource and international frequency coordination entity for Amateur Radio ALE Automatic Link Establishment. The most current versions of the popular freeware PC-ALE can be found here
• PC ALE Forum
• go2Monitor ALE-2G Description
• Signal Identification Wiki - ALE 2G

Return to HF Military Communications