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2. Amateur radio repeater - Wikipedia

   en.wikipedia.org/wiki/Amateur_radio_repeater

   Repeater frequency sets are known as "repeater pairs", and in the ham radio community most follow ad hoc standards for the difference between the two frequencies, commonly called the offset. In the USA two-meter band, the standard offset is 600 kHz (0.6 MHz), but sometimes unusual offsets, referred to as oddball splits, are used. The actual ...

3. Transmitter station - Wikipedia

   en.wikipedia.org/wiki/Transmitter_station

   They all have masts or towers to install antenna systems. In most cases, the mast is a passive structure to support the antennas. But in low frequency stations (such as AM radio), the mast itself may be the active antenna element. In such cases, the mast is isolated from the ground.(See Monopole antenna). If the mast itself is an active antenna ...

4. Maritime mobile amateur radio - Wikipedia

   en.wikipedia.org/wiki/Maritime_mobile_amateur_radio

   An amateur radio installation on a 28' yacht, including 100W HF transceiver with microphone, manual antenna tuner, and morse key Maritime mobile amateur radio is an amateur radio transmission license that allows maritime operators to install and use radio while they operating at sea.

5. List of transmission sites - Wikipedia

   en.wikipedia.org/wiki/List_of_transmission_sites

   Mediumwave (AM Radio) LW: Longwave: FM: FM broadcasting: DAB: Digital Audio Broadcasting (digital radio) DVB-T: Digital Video Broadcasting – Terrestrial (digital terrestrial television) DVB-H: Digital Video Broadcasting – Handhelds (digital television for hand-held receivers) VHF: Very high frequency (Television) UHF: Ultra high frequency ...

6. G5RV antenna - Wikipedia

   en.wikipedia.org/wiki/G5RV_antenna

   A transmatch (antenna tuner) is not required to use this antenna near its nominal design frequency of 14 MHz, and judicious length adjustments can sometimes include one other frequency band. All other frequencies require a transmatch. [citation needed] There are many variants of the G5RV antenna. Two variations of the G5RV design, called ZS6BKW ...

7. List of longwave radio broadcasters - Wikipedia

   en.wikipedia.org/wiki/List_of_longwave_radio...

   Omnidirectional antenna, 257 m high guyed lattice steel mast with cage antenna ( ARRT-antenna) 1,000 234 Radio 1 Russia: Krasny Bor transmitter near Sankt-Peterburg Omnidirectional aerial, 271.5 metres tall guyed mast with cage antenna 1200