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An ICOM IC-7300 Radio Tuned to the 20 Meter Band. The ICOM IC-7300 is a multimode 6 meter, 4 meter (ITU Region 1 only) and HF base station amateur radio transceiver. [1] The IC-7300 was announced to the public at the Japan Ham Fair in 2015. [2] The radio has 100 watts output on CW, SSB, and FM modulations and 25 watts of output in AM. [3]
Icom IC-7600 Icom IC-2100 Icom IC-F4GS Icom IC-7300. Handheld ... and Kenwood AT-250 automatic antenna tuner (right) Other series include the 100, 500, and the 2000 ...
An antenna tuner, a matchbox, transmatch, antenna tuning unit (ATU), antenna coupler, or feedline coupler is a device connected between a radio transmitter or receiver and its antenna to improve power transfer between them by matching the impedance of the radio to the antenna's feedline. Antenna tuners are particularly important for use with ...
The ICOM IC-7100 is a multimode HF/VHF/UHF mobile amateur radio transceiver. The IC-7100 has support for a wide variety of commonly used amateur radio modes including ICOMs proprietary digital voice mode DSTAR. Additionally the radio offers 100 watts on HF, 50 watts on VHF, and 35 watts on UHF. [1]
Marantz 2050L AM/FM stereo tuner (USA; 1978-1980) [1]. In electronics and radio, a tuner is a type of receiver subsystem that receives RF transmissions, such as AM or FM broadcasts, and converts the selected carrier frequency into a form suitable for further processing or output, such as to an amplifier or loudspeaker.
20 MSPS with 12 built-in preselection filters and 3 antenna ports 0.5 1/1 USB 2.0 Yes Yes Yes none SDRplay: RSPduo [99] Pre-built 1 kHz – 2 GHz 10 MHz 14<2 MHz 12<8 MHz 10<9.216 MHz 8>9.216 MHz No Two independent tuners, each with 11 built-in preselection filters. 3 antenna ports 0.5 2/2 USB 2.0 Yes Yes Yes none
Antenna tuning in the loose sense, performed by an impedance matching device (somewhat inappropriately named an "antenna tuner", or the older, more appropriate term transmatch) goes beyond merely removing reactance and includes transforming the remaining resistance to match the feedline and radio.
The bones in the middle ear function as a series of levers, which matches mechanical impedance between the eardrum (which is acted upon by vibrations in air) and the fluid-filled inner ear. Horns in loudspeaker systems are used like transformers in electrical circuits to match the impedance of the transducer to the impedance of the air.