Tag: military

Via the ARRL: US Marines Sponsor Ham Radio Licensing Course

US Marines with Information Group II Marine Expeditionary Force (II MIG) participated in an amateur radio general licensing course January 27 – 31 on base as part of the group’s High Frequency Auxiliary Initiative. Members of the Brightleaf Amateur Radio Club of Greenville, North Carolina, helped the Marines in the class learn the principles of HF radio […]

Via the ARRL: Over-the-Horizon Radars Causing Widespread Interference on 40 Meters

Over-the-horizon (OTH) radars continue to plague various amateur radio bands. Those operating on exclusive ham radio allocations have been complaining for years, but military systems have a blanket waiver to use amateur radio frequencies. The latest edition of the International Amateur Radio Union Monitoring System (IARUMS) newsletter reports that a radar in northern Iran — likely military […]

Via HACKADAY: Odd-Sized Military Headphone Connectors, Tamed!

Military headphones, at least the older ones, are like few other sound reproducers. They are an expression of function over form, with an emphasis on robustness over operator comfort. Electrically they most often have high-impedance drivers and annoyingly proprietary connectors for whichever obscure radio system they were a part of. [John Floren] has a HS-16A […]

via HACKADAY: Jeremy Hong: Weaponizing the Radio Spectrum

Jeremy Hong knows a secret or two about things you shouldn’t do with radio frequency (RF), but he’s not sharing. That seems an odd foundation upon which to build one’s 2018 Hackaday Superconference talk, but it’s for good reason. Jeremy knows how to do things like build GPS and radar jammers, which are federal crimes. […]

Man set up radio transmitter by ‘alien UFO base’ Area 51… what he recorded terrified him

AN AMATEUR radio operator who set up a transmitter near the secretive Area 51 base has captured this extraordinary sound on camera. Thousands of YouTube viewers have watched a man who has set up a radio transmitter within range of the top-secret military base in Nevada. He explains he has done it specifically to capture […]

Armed Forces Day Crossband Military/Amateur Radio Communications Test is May 13

The US Army, Air Force, Navy, and Coast Guard will sponsor the traditional military/amateur radio communication tests on Saturday, May 13 to mark the 66th annual Armed Forces Day (AFD). Armed Forces Day is May 20, but the AFD Crossband Military-Amateur Radio event will take place a week earlier in order to avoid schedule conflicts […]

via HACKADAY: Visualization of a Phased Array Antenna System

Phased array antenna systems are at the cusp of ubiquity. We now see Multiple-Input Multiple-Output (MIMO) antenna systems on WiFi routers. Soon phased array weather radar systems will help to predict the weather and keep air travel safe, and phased array base stations will be the backbone of 5G which is the next generation of […]

Voices of Service: Listening in with Army Security Agency (Pennsylvania)

Lonnie Frampton’s 20 years of Army service as a member of the Army Security Agency included a tour in Vietnam, where his skills at electronics repairs helped make the Army’s signal intelligence, sometimes referred to as Radio Research, possible. Frampton joined the Army after high school to get his military obligation out of the way. […]