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  2. Radio-frequency identification - Wikipedia

    en.wikipedia.org/wiki/Radio-frequency_identification

    An early work exploring RFID is the landmark 1948 paper by Harry Stockman, [10] who predicted that "Considerable research and development work has to be done before the remaining basic problems in reflected-power communication are solved, and before the field of useful applications is explored."

  3. Request for information - Wikipedia

    en.wikipedia.org/wiki/Request_for_Information

    A request for information (RFI) is a common business process whose purpose is to collect written information about the capabilities of various suppliers. [1] Normally it follows a format that can be used for comparative purposes. An RFI is primarily used to gather information to help make a decision on what steps to take next.

  4. Line filter - Wikipedia

    en.wikipedia.org/wiki/Line_filter

    A line filter (aka EMC filter, EMI filter, RFI filter) is an electronic filter that is placed between the mains electricity input and internal circuitry of electronic equipment to attenuate conducted radio frequencies radio frequency interference (RFI), also known as electromagnetic interference (EMI). [1]

  5. Electromagnetic interference - Wikipedia

    en.wikipedia.org/wiki/Electromagnetic_interference

    Interference with the meaning of electromagnetic interference, also radio-frequency interference (EMI or RFI) is – according to Article 1.166 of the International Telecommunication Union ' s (ITU) Radio Regulations (RR) [8] – defined as "The effect of unwanted energy due to one or a combination of emissions, radiations, or inductions upon ...

  6. Request for proposal - Wikipedia

    en.wikipedia.org/wiki/Request_for_proposal

    Similar requests include a request for quotation (RFQ) and a request for information (RFI), where a customer needs more information from vendors before submitting an RFP. An RFI is typically followed by an RFP or RFQ. [2] When an RFP is made after negotiations with prospective contractors, the submitted tender is known as a BAFO (best and final ...

  7. Software-defined radio - Wikipedia

    en.wikipedia.org/wiki/Software-defined_radio

    Software-defined radio (SDR) is a radio communication system where components that conventionally have been implemented in analog hardware (e.g. mixers, filters, amplifiers, modulators/demodulators, detectors, etc.) are instead implemented by means of software on a computer or embedded system. [1]

  8. Systems Engineering and Technical Assistance - Wikipedia

    en.wikipedia.org/wiki/Systems_Engineering_and...

    Through a formal Request for Information (RFI)/ Request for Proposal (RFP) process the government is able to contract with a commercial organization to provide certain services. SETA contractors work alongside government employees often within the same workspace.

  9. Antenna feed - Wikipedia

    en.wikipedia.org/wiki/Antenna_feed

    In a radio antenna, the feed line (feedline), or feeder, is the cable or other transmission line that connects the antenna with the radio transmitter or receiver.In a transmitting antenna, it feeds the radio frequency (RF) current from the transmitter to the antenna, where the energy in the current is radiated as radio waves.