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An amateur radio repeater system consisting of a 70 cm repeater and a 2-meter digipeater and iGate. Coaxial cavity RF filter at 2 meter repeater An amateur radio repeater is an electronic device that receives a weak or low-level amateur radio signal and retransmits it at a higher level or higher power, so that the signal can cover longer ...
From 29.000 MHz to 29.700, The FM sub-band is usually channelized into repeater and simplex frequencies. The channels are commonly grouped into repeater inputs, simplex, and repeater output frequencies. Repeater input frequencies: 29.510, 29.520, 29.530, 29.540, 29.550, 29.560, 29.570, 29.580 and 29.590 MHz.
For example, in US two-way radio, 30–50 MHz is one band and 150–174 MHz is another. A repeater with an input of 33.980 MHz and an output of 46.140 MHz is a same band repeater. In same band repeaters, a central design problem is keeping the repeater's own transmitter from interfering with the receiver.
English: Rochester Institute of Technology Amateur Radio Club K2GXT repeater rack. Top to bottom: Monitor, ARPS digipeater and iGate, EchoIRLP node controller, APRS radio, power supply, repeater controller, 70cm repeater. The repeater is located on top of Ellingson Hall, the tallest building on the RIT campus.
The Western Union company used the term simplex when describing the half-duplex and simplex capacity of their new transatlantic telegraph cable completed between Newfoundland and the Azores in 1928. [4] The same definition for a simplex radio channel was used by the National Fire Protection Association in 2002. [5]
Continental Electronics is an American manufacturer of broadcast and military radio transmitters, based in Dallas, Texas.Although Continental today is best known for its FM, shortwave, and military VLF transmitters, Continental is most significant historically for its line of mediumwave transmitters, many of which are still in active service as either main transmitters or backup facilities.
Call sign Frequency City of License [1] [2] Licensee Format [3]; KAAM: 770 AM: Garland: DJRD Broadcasting, LLC: Christian talk/Brokered KABA: 90.3 FM: Louise: Aleluya Broadcasting Network
KGGR (1040 AM) is a commercial radio station, licensed to Dallas, Texas and serving the Dallas-Fort Worth Metroplex. It is owned by MARC Radio Group, through licensee MARC Radio Dallas, LLC, and airs an urban gospel radio format, in place since 1990. The call sign stands for Great Gospel Radio. KGGR is a daytimer station.