High frequency (HF) radio has a long history. HF users range from amateur radio operators to the military, but also include members of criminal organizations. These different user groups all value several key advantages: HF systems make it easy to achieve long-range communications, they can be deployed quickly, and they require no network infrastructure.
The wideband HF monitoring and direction finding system described in this document detects and monitors communications in the HF band. Automatic processes perform routine tasks for efficiently and simultaneously intercepting up to 64 communications channels within the entire HF band. This system detects, classifies, demodulates and decodes signals and provides realtime processing of signals down to the content level and then displays the results. The system also takes bearings on emitters and shows their locations on a digital map. The system capabilities include complete recording of a signal's IF (intermediate frequency), or even of a defined wideband spectrum.
Furthermore, surveillance of known emitters is possible, as is digital audio recording.
High frequency (HF) radio has a long history. HF users range from amateur radio operators to the military, but also include members of criminal organizations. These different user groups all value several key advantages: HF systems make it easy to achieve long-range communications, they can be deployed quickly, and they require no network infrastructure.The wideband HF monitoring and direction finding system described in this document detects and monitors communications in the HF band. Automatic processes perform routine tasks for efficiently and simultaneously intercepting up to 64 communications channels within the entire HF band. This system detects, classifies, demodulates and decodes signals and provides realtime processing of signals down to the content level and then displays the results. The system also takes bearings on emitters and shows their locations on a digital map. The system capabilities include complete recording of a signal's IF (intermediate frequency), or even of a defined wideband spectrum.Furthermore, surveillance of known emitters is possible, as is digital audio recording.
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High frequency (HF) radio has a long history. HF users range from amateur radio operators to the military, but also include members of criminal organizations. These different user groups all value several key advantages: HF systems make it easy to achieve long-range communications, they can be deployed quickly, and they require no network infrastructure.
The wideband HF monitoring and direction finding system described in this document detects and monitors communications in the HF band. Automatic processes perform routine tasks for efficiently and simultaneously intercepting up to 64 communications channels within the entire HF band. This system detects, classifies, demodulates and decodes signals and provides realtime processing of signals down to the content level and then displays the results. The system also takes bearings on emitters and shows their locations on a digital map. The system capabilities include complete recording of a signal's IF (intermediate frequency), or even of a defined wideband spectrum.
Furthermore, surveillance of known emitters is possible, as is digital audio recording.
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