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Yaesu FT-7 is a rugged, solid state and modular built HF amateur-band radio transceiver, suitable for fixed and for mobile operation. The set was built by the Yaesu Corporation in Japan in the late 1970s and early 1980s. Its first Japanese release was in 1976.
The Yaesu FT-891 is a HF and 6 meters all mode mobile amateur radio transceiver. The FT-891 was first announced to the public by Yaesu at the 2016 Dayton Hamvention. [ 1 ] The radio has 100 watts output on CW , SSB , and FM modulations and 25 watts of output in AM . [ 2 ]
The selection has to be made per band (HF, 6, 2 m or 70 cm) using menu selection. The BNC connector is the antenna connector chosen when the relay is bypassed. A 70cm signal path goes through a high pass filter network, through the RF directional coupler/power detector (not on rx) to a low pass filter to a PIN-diode. In rx mode, these are ...
Kenwood TS-520 transceiver Kenwood TS-830S transceiver Kenwood TS-590S transceiver Kenwood TS-430S HF transceiver (left) and Kenwood AT-250 automatic antenna tuner (right) Other series include the 100, 500, and the 2000 series.
Moxon antenna for the 20-meter band.The antenna is the faint rectangle of wires held in tension by the bent X-shaped support frame. Moxon antenna for the 2-meter band. The Moxon antenna or Moxon rectangle is a simple and mechanically rugged two-element parasitic array, single-frequency antenna. [1]
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 ...
RF and microwave antennas, components, and systems, including mobile devices. MRI coils, radar, waveguides, SAR validation. AWR Axiem: commercial Yes Yes Yes Yes Yes Automatic, Hybrid MoM PCBs, multi-layer PCBs, LTCC, HTCC, on-chip passives, printed antennas. Integrated into Microwave Office. AWR Analyst: commercial Yes Yes Yes Yes Yes
HF's position in the electromagnetic spectrum. High frequency (HF) is the ITU designation [1] for the band of radio waves with frequency between 3 and 30 megahertz (MHz). It is also known as the decameter band or decameter wave as its wavelengths range from one to ten decameters (ten to one hundred meters).
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