When.com Web Search

Search results

  1. Results From The WOW.Com Content Network
  2. WSPR (amateur radio software) - Wikipedia

    en.wikipedia.org/wiki/WSPR_(amateur_radio_software)

    WSPR (pronounced "whisper") is an acronym for Weak Signal Propagation Reporter.It is a protocol, implemented in a computer program, used for weak-signal radio communication between amateur radio operators.

  3. Amateur radio propagation beacon - Wikipedia

    en.wikipedia.org/wiki/Amateur_radio_propagation...

    An amateur radio propagation beacon is a radio beacon, whose purpose is the investigation of the propagation of radio signals. Most radio propagation beacons use amateur radio frequencies. They can be found on LF, MF, HF, VHF, UHF, and microwave frequencies. Microwave beacons are also used as signal sources to test and calibrate antennas and ...

  4. Radio propagation - Wikipedia

    en.wikipedia.org/wiki/Radio_propagation

    Radio propagation is the behavior of radio waves as they travel, or are propagated, from one point to another in vacuum, or into various parts of the atmosphere. [1]: 26‑1 As a form of electromagnetic radiation, like light waves, radio waves are affected by the phenomena of reflection, refraction, diffraction, absorption, polarization, and scattering. [2]

  5. RBN - Wikipedia

    en.wikipedia.org/wiki/RBN

    Reverse Beacon Network, a radio wave propagation discovery tool for Amateur Radio; Rock Band Network, a downloadable content service; Royal Brunei Navy, and also the associated prefix for ships of the navy; Russian Business Network, a Russian ISP openly engaged in criminal activities

  6. Amateur radio repeater - Wikipedia

    en.wikipedia.org/wiki/Amateur_radio_repeater

    Popular VoIP amateur radio network protocols include AllStarLink/HamVoIP, D-STAR, Echolink, IRLP, WIRES and eQSO. Digital Mobile Radio (DMR), D-STAR, Fusion, P25 and NXDN all have a codec in the user radio and along with the encoded audio, also send and receive user number and destination information so one can talk to another specific user or ...

  7. Radio navigation - Wikipedia

    en.wikipedia.org/wiki/Radio_navigation

    VHF omnidirectional range, or VOR, is an implementation of the reverse-RDF system, but one that is more accurate and able to be completely automated. [ citation needed ] The VOR station transmits two audio signals on a VHF carrier – one is Morse code at 1020 Hz to identify the station, the other is a continuous 9960 Hz audio modulated at 30 ...

  8. International Beacon Project - Wikipedia

    en.wikipedia.org/wiki/International_Beacon_Project

    The network operated on 14.1 MHz and the beacon format remained unchanged. [3] In 1995, work began to improve the existing beacon network, so it could operate on 5 designated frequencies on the high frequency band. The new beacon network used Kenwood TS-50 transceivers keyed and controlled by an upgraded beacon controller unit.

  9. Automatic Packet Reporting System - Wikipedia

    en.wikipedia.org/wiki/Automatic_Packet_Reporting...

    This includes sound cards interfacing a radio to a computer, simple TNCs, and "smart" TNCs. The "smart" TNCs are capable of determining what has already happened with the packet and can prevent redundant packet repeating within the network. Reporting stations use a method of routing called a "path" to broadcast the information through a network.