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2. Antenna tuner - Wikipedia

   en.wikipedia.org/wiki/Antenna_tuner

   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 ...

3. Elecraft - Wikipedia

   en.wikipedia.org/wiki/Elecraft

   The company's "K-Line" includes the K3 transceiver, the KPA500 500W solid-state power amplifier, the KAT500 automatic antenna tuner, and the P3 panadapter. [9] The P3SVGA add-on for the P3 displays panadapter data on a large screen, and the W2 HF/VHF/UHF wattmeter are sometimes considered part of the K-Line.

4. Clansman (military radio) - Wikipedia

   en.wikipedia.org/wiki/Clansman_(military_radio)

   A TUAAM (Tuning Unit Automatic Antenna Matching) is an ATU which matches the standard vehicle antenna at VHF and which is used mainly with the VRC 353 and PRC 351/2 (when used with the clip-in kit and mounted in a vehicle).

5. Antenna tuning hut - Wikipedia

   en.wikipedia.org/wiki/Antenna_tuning_hut

   An antenna tuning hut or helix house is a small shed at the base of a longwave or mediumwave radio transmitting antenna. It contains antenna tuner — radio equipment for coupling the power from the feedline to the antenna. [1] Alternative names include antenna tuning house, coupling hut, and dog house.

6. List of amateur radio transceivers - Wikipedia

   en.wikipedia.org/wiki/List_of_amateur_radio...

   Kit Single band 80m / 40m / 30m / 20m 2 CW Yes Mosquita III Kit 40m 5 CW No [51] Nouveau 75A Kit 80M 5 (Carrier) / 20 PEP AM: Yes Splinter II Kit 40m 0.5 CW Yes OHR 100A Kit 80m / 40m / 30m / 20m / 15m 5 (4–4.5 on 15m) CW Yes BCR Blue Cool Radio Kit (80m) / 40m / 30m / 20m / 17m 5 CW No [51] QRPGuys DSB Digital Transceiver II Kit 40m / 30m / 20m

7. Radio transmitter design - Wikipedia

   en.wikipedia.org/wiki/Radio_transmitter_design

   A radio transmitter or just transmitter is an electronic device which produces radio waves with an antenna. Radio waves are electromagnetic waves with frequencies between about 30 Hz and 300 GHz. The transmitter itself generates a radio frequency alternating current, which is applied to the antenna. When excited by this alternating current, the ...