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11 QRP transceivers. 12 See also. 13 References. ... and Kenwood AT-250 automatic antenna tuner (right) Other series include the 100, 500, and the 2000 series ...
In amateur radio, QRP operation refers to transmitting at reduced power while attempting to maximize one's effective range. QRP operation is a specialized pursuit within the hobby that was first popularized in the early 1920s. QRP operators limit their transmitted RF output power to 5 W or less regardless of mode (Some call 10 W on Phone QRP) . [1]
Like many other radios of its class the IC-7300 has an internal antenna tuner and contains an internal audio card accessible over USB. [1] [5] This allows the radio to be used for popular digital modes such as PSK31, Winlink, and FT8. [6] [7] The radio has received praise for its easy to use menus, large readable screen, and excellent audio ...
An antenna's impedance is different at different frequencies. An antenna tuner matches a radio with a fixed impedance (typically 50 Ohms for modern transceivers) to the combination of the feedline and the antenna; useful when the impedance seen at the input end of the feedline is unknown, complex, or otherwise different from the transceiver.
The company focuses on station accessories, including antenna tuners and antenna switching equipment. MFJ was founded in 1972 by Martin F. Jue. As of 2014, the company was recognized as the largest producer of amateur radio products worldwide. [2]
Ukraine’s President Volodymyr Zelensky finds himself shunted down Donald Trump’s call sheet in favor of Russia’s Vladimir Putin, as the bones of a peace plan emerge that push Kyiv’s ...