I’m sure we would all appreciate any reported activity!
Have you heard any HF military activity recently? Drop a comment below and let me know what you’ve heard. Have you heard military radio transmissions?
REA4 is a Morse code station of the Long-Range Aviation that broadcasts airfield weather reports and “Monolith” messages. The voiced callsigns for the ground stations when conducting training are named above as Moscow-2 and Saratov-2. Otherwise, the procedures used are exactly the same. Voice communications take place within the 5.6 MHz range, with a single ground station present using a distinct callsign. Training operations are conducted away from the main frequencies. During activity on this network, a single letter ( “W” for Europe, or “G” for the Pacific) is repeatedly transmitted on one of the Morse ground frequencies around H+00, H+20, and H+40 for 2 minutes each. The activity takes place mainly on the 8 MHz channels. The frequencies and the callsigns used depend on the season. It is also known as the Bear net, after the NATO reporting name for the Tu-95, Bear. This network is associated with the Tu-95 strategic bombers and the Il-78 tankers supporting them. This network carries plain voice traffic between transport aircraft and the Military Transport Aviation units.
Intelligence has been floating around social media listing potential Russian frequencies being used by forces in Ukraine. Russian Military Shortwave Frequencies (Updated ) That incident led to the RTL-SDR enthusiast blog to issue a warning to current Ukrainian SDR enthusiasts. Stan was arrested by Russian Federal Security Services and is currently in prison in Moscow, Russia on charges he is a Ukrainian spy. Stanislav Stetsenko was a resident of Crimea and regularly monitored ADS-B traffic. However, there have been warnings about what running a SDR available to the Internet could mean for Ukrainian citizens. As of this writing, there are still WebSDRs active within Ukraine. SDRs located in Ukraine give you the ability to monitor the airwaves from the middle of potential military action.
Web-based Software Defined Radios (SDR) have exploded in popularity in recent years. Mickey Gurdus in his shack listening to radio transmissions in 1991.