| Term | Full form | Meaning |
|---|---|---|
| ADS-B | Automatic Dependent Surveillance – Broadcast | position broadcast via the Mode S squitter; also an OSINT source (Radar) |
| AGC | Automatic Gain Control | automatic gain control of the receiver (Radar) |
| ARM | Anti-Radiation Missile | missile that homes on radar emissions (SEAD & DEAD) |
| C2 | Command & Control | command and control; a target of COMJAM (Counter-UAS & drone EW) |
| C-UAS | Counter-UAS | detecting and defeating drones (Counter-UAS & drone EW) |
| CFA | Crossed-Field Amplifier | compact, efficient transmitter tube for radar (Radar) |
| COHO / STALO | Coherent Oscillator / Stable Local Oscillator | reference oscillators of a coherent radar (Radar) |
| COMINT | Communications Intelligence | intelligence from communications (EW: Electronic Support Measures) |
| COMJAM | Communications Jamming | disrupting communications (Electronic Counter Measures) |
| CRPA | Controlled Reception Pattern Antenna | anti-jam GNSS antenna with null steering (GNSS and navigation warfare) |
| CW | Continuous Wave | unpulsed radar signal (Radar) |
| DEAD | Destruction of Enemy Air Defenses | destroying air defences (SEAD & DEAD) |
| DEW | Directed Energy Weapon | energy weapon: laser or HPM (Directed Energy Weapons) |
| DRFM | Digital Radio Frequency Memory | digitally storing and retransmitting for deception (Electronic Counter Measures) |
| DSSS | Direct-Sequence Spread Spectrum | spreading by means of a chip sequence (New concepts in EW) |
| EA | Electronic Attack | offensive EW: jamming and deception (Electronic Counter Measures) |
| ECM / ECCM | Electronic (Counter-)Countermeasures | older terms for EA / EP (Electronic Counter Measures–12) |
| ELINT | Electronic Intelligence | intelligence from non-communications emitters (EW: Electronic Support Measures) |
| EMCON | Emission Control | controlling your own emissions (Doctrine & EMSO) |
| EMI | Electromagnetic Interference | unintended interference / fratricide (Doctrine & EMSO) |
| EMS | Electromagnetic Spectrum | the electromagnetic spectrum (The electromagnetic spectrum) |
| EMSO | Electromagnetic Spectrum Operations | overarching spectrum operations (Doctrine & EMSO) |
| EP | Electronic Protection | protective EW (Electronic Protective Measures) |
| ERP | Effective Radiated Power | transmit power × antenna gain (SEAD & DEAD) |
| ES / ESM | Electronic Support (Measures) | EW sensing and intelligence (EW: Electronic Support Measures) |
| EW | Electronic Warfare | electronic warfare (What is Electronic Warfare?) |
| FHSS | Frequency-Hopping Spread Spectrum | hopping between frequencies (New concepts in EW) |
| FMCW | Frequency-Modulated Continuous Wave | radar type for range measurement (Radar) |
| FPV | First-Person View | flown via a live video feed; FPV drones (Counter-UAS & drone EW) |
| FRPA | Fixed Reception Pattern Antenna | standard (non-adaptive) GNSS antenna (GNSS and navigation warfare) |
| GNSS | Global Navigation Satellite System | satellite navigation (GPS, GLONASS…) (GNSS and navigation warfare) |
| HARM | High-speed Anti-Radiation Missile | the AGM-88 ARM (SEAD & DEAD) |
| HEL | High-Energy Laser | laser weapon (Directed Energy Weapons) |
| HPM | High-Power Microwave | microwave energy weapon (Directed Energy Weapons) |
| IADS | Integrated Air Defense System | integrated air defence (Executing the fire control sequence using the EMS) |
| IF / LO | Intermediate Frequency / Local Oscillator | intermediate frequency and mixing oscillator of the superheterodyne receiver (Radar) |
| IFF | Identification Friend or Foe | military secondary radar with transponder; Modes 1–5 (Radar) |
| INS | Inertial Navigation System | inertial navigation (Missile Guidance) |
| IR / IRST | Infrared (Search and Track) | infrared and passive IR sensor (Infrared) |
| J/S | Jamming-to-Signal ratio | ratio of jamming signal to target signal (SEAD & DEAD) |
| JEMSO | Joint EMSO | joint spectrum operations (Doctrine & EMSO) |
| JRFL | Joint Restricted Frequency List | list of frequencies that must not be jammed (Doctrine & EMSO) |
| LPI / LPD | Low Probability of Intercept / Detect | hard to intercept or detect (Radar, New concepts in EW) |
| LWIR / MWIR | Long- / Mid-Wave Infrared | 8–12 µm and 3–5 µm IR windows (Infrared) |
EW Academy · Contents · Chapter 20 · §20.2 · Nederlandse versie