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22 lip 2024 · Calculating the sizes of a Tin Can waveguide antenna, a Spiral antenna, Yagi-Uda, Bi-Quad antenna, Double Bi-Quad antenna and Collinear Coaxial antenna. For the calculation, you need to know...
6 lip 2022 · Cantenna online calculator. Schematic representation of the antenna: By adding an attachment in the form of a horn to the antenna, we get the simplest conical horn antenna from a can antenna. This way allows you to get an increase in amplification of up to 3 dB compared to a single can.
24 lip 2024 · A tool to help ham radio, CB, and other radio users to create antennas of various types. Calculations available for dipole, vertical (1/8, 1/4, 3/8, 1/2, 5/8, 3/4, 7/8, and full wave), inverted...
14 sie 2024 · How to Calculate Efhw Antenna? The following steps outline how to calculate the length of an Efhw Antenna using the formula: L = 468 / f. First, determine the frequency (f) in MHz.
Calculators. This page contains various javascript based calculators for electronics. Slim Jim and J-Pole antenna calculator – Build a cactus for any frequency. 1/4 Wave Ground Plane antenna calculator – Build a simple quarter wave with radials.
A balun is to deal with differential vs single-ended, and a unun is a fixed transformer. The tuner is only needed if the antenna system isn't matched (usually 50 ohm), if the antenna gives the right impedance, your setup is already complete.
An 80-10 end-fed half-wave antenna can be a very good performing part of an HF station. But its performance depends heavily on a well-designed and carefully constructed 49:1 unun, which matches the long wire impedance to within tuning range of operation. But the perfor-mance of an end-fed antenna is also very dependent on height above ground.
