Utility Monitoring

The purpose of this section is to gather and group HF Utility Monitoring information in a single location. For information on antennas, please see the Antennas Wiki

Aircraft

• ICAO HF Aeronautical Stations - Aircraft use the ICAO stations to communicate over water when out of VHF radio range.

Digital Decoding

• Utility Monitoring Central
• Here's Marius Rensen's popular HF FAX site for FAX/SSTV information
• See the ALE page for packages that decode this rapidly growing mode.

Audio Samples of Digital Signals

• WUN Digital Sounds Page
• Signals Digital Modes section
• KB9UKD Digital Modes Samples

Hurricane Related Frequency Lists

• Hugh Stegman's Hurricane Frequency List
• Bill Snyder's Hurricane Frequencies
• NOAA HF Sitor schedule information
• WLO Mobile Ala. frequencies and schedules

Military

• USAF High Frequency Global Communications System reference information

MW (AM Band) Rejection Filters

• Kiwa Broadcast Band Rejection Filter
• Kiwa Broadcast Band Filter for Longwires
• PAR BCST-HPF Filter

Other Websites

• Armed Forces Network
• What was once known as the Armed Forces Radio and TV Network (AFRTS)
• MT columnist Hugh Stegman's Utility World website
• MT Top 1000 Frequencies
• Southbound 2 Net page by Herb Hilgenberg VE3LML
• Tropical Cyclone Plan of the Day
• Utility Address and QSL page

Propagation and Solar Information

• AC6V Propagation Links
• EHam Propagation Links
• Spaceweather.Com

Receiver Control Software

• Strong Signals Software HF section

Receiver Modifications

• INRAD Filters and Enhancements
• Kiwa Electronics
• Mods.DK
• Sherwood Engineering

Receiver Reviews and User Opinions

• AC6V Receiver Reviews and Surveys
• DXing.Info Equipment Page
• EHam Receiver user reviews
• RadioIntel Receivers page 1
• RadioIntel Receivers and Accesories page
• R Netherland Receiver Shopping List
• Even tho it's not updated with new rxs, this is still a valuable resource for receiver tests

US Federal Goverment

• ICE - Monitoring U.S. Immigration and Customs Enforcement HF Operations

Utility Related Clubs and mailing lists

• WorldWide Utility News
• You can join this list on QTH.net by using this page
• Additional frequencies are often reported on the Milcom list on QTH.net

• And some Yahoo groups;
  • COTHEN
  • HF Spotters
  • iscanmarine
  • Low Level
  • MilAirCommsChat
  • MilGov Monitoring
  • Ontario DX Association (ODXA)
  • Radio Monitors
  • Utility Listening