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The HB9XBG antenna is a vertical dipole antenna for short wave radio amateurs. It was developed by the Swiss radio amateur Walter Kägi, whose call sign HB9XBG is also the designation of the antenna. [1] During the test phase in 2020, HB9XBG built two vertical dipoles – one for the 20-metre amateur radio band and another for the 40-metre band.
He is the author of many papers on periodic surfaces and antennas, as well as two key books. The most significant work are the "Finite Antenna Arrays and FSS" [2] in which he discusses the design of the ultra wide band tightly coupled dipole antenna array and "Frequency Selective Surfaces: Theory and Design". [3]
Radio amateurs can build the Hexbeam as a multi-band antenna to cover different frequency ranges. Popular combinations cover 20m, 15m and 10m (3 band) and 20m, 17m, 15m, 12m and 10m (5-band) ham radio bands. Hexbeams can also be built for the 40m and 30m bands. The antenna elements for the lowest frequency band are located at the exterior of ...
Mar 7, 2024; Columbus, OH, USA; Ohio State Buckeyes head coach Ryan Day talks to quarterbacks during spring football practice at the Woody Hayes Athletic Center.
The bow-tie antenna is a dipole with flaring, triangular shaped arms. The shape gives it a much wider bandwidth than an ordinary dipole. It is widely used in UHF television antennas. Cage dipole antennas in the Ukrainian UTR-2 radio telescope. The 8 m by 1.8 m diameter galvanized steel wire dipoles have a bandwidth of 8–33 MHz.
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]
You know the Ohio State football season is nigh when dates are communicated for single-game tickets to go on sale. ... 🏈 2022 Mini-Plan on-sale 10 a.m. Tuesday! 🆕 YOU CHOOSE!
Aug. 6—Ohio State Buckeyes football fans can purchase three different types of "mini plan" tickets for games at Ohio Stadium during the 2021 season. » PRESEASON COVERAGE: Day in wait-and-see ...