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RFinder is the official repeater directory of the following associations: [4] Amateur Radio Society Italy [7] American Radio Relay League [1] Cayman Amateur Radio Society [8] Deutscher Amateur Radio Club [9] Federacion Mexicana de Radio Experimentadores [10] L’association Réseau des Émetteurs Français [11] Lietuvos Radijo Mėgėjų ...
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An SSTV repeater is an amateur radio repeater station that relays slow-scan television signals. A typical SSTV repeater is equipped with a HF or VHF transceiver and a computer with a sound card, which serves as a demodulator/modulator of SSTV signals. SSTV repeaters are used by amateur radio operators for exchanging pictures.
Amateur repeaters in the 144–148 MHz band usually use a 600 kHz (0.6 MHz) separation, in the 1.25-meter band use a 1.6 MHz separation, in the 420–450 MHz band use a 5 MHz separation, and in the 902–928 MHz band use a 25 MHz separation. Systems in the 450–470 MHz band use a 5 MHz separation with the input on the higher frequency.
This is a list of repeater sites for amateur radio in Germany. It includes towers (e.g. CN Tower and Bremen TV tower), hills, mountains and other locations. List
Morse code is called the original digital mode. Radio telegraphy, designed for machine-to-machine communication is the direct on / off keying of a continuous wave carrier by Morse code symbols, often called amplitude-shift keying or ASK, may be considered to be an amplitude modulated mode of communications, and is rightfully considered the first digital data mode.
An amateur radio station is a radio station designed to provide radiocommunications in the amateur radio service for an amateur radio operator. Radio amateurs build and operate several types of amateur radio stations, including fixed ground stations, mobile stations, space stations, and temporary field stations.
Amateur radio repeater: Used by amateur radio operators to enable two-way communication across an area which would otherwise be difficult by point-to-point on VHF and UHF. These repeaters are set up and maintained by individual operators or clubs, and are generally available for any licensed amateur to use.