loading coil calculator

Easy wire antenna for 40-20-10 meters - PE3HMP project of a triband wire antenna for 40 20 10 meters band, made using home made coils

40/80 Coil loaded dipole - A coil loaded dipole antenna for 40 and 80 meters band by I2CN

Coil loaded dipole for 80 meters - Coil loading of an 80m Dipole for restricted space. Here's a method that may allow you to fit that 80m dipole into your suburban backyard by VK3JEG

PY1UNU dipole for 80 meters - A dipole with coils for 80 meters band in portuguese.

Antenna Height Above Average Terrain - Antenna Height Above Average Terrain (HAAT) Calculator

4Z5NY Antenn calculators - The formulas for a dipole and vertical, j-pole, double square, Yagi and EH antenna calculators

Antenna Tilt Calculator

RF Transmission Line Loss Calculator - This calculator computes the matched line loss for a transmission line using a model calibrated from data for the transmission line types built in to the calculator. It also gives an estimate of the mismatched loss if the mismatch is specified.

Online Antenna Calculator - Java script antenna calculators for ground planes, half wave verticals, quad antenna, 5/8th wave vertical antenna, dipole and inverted vee antennas

Online Dipole Antenna Calculator - Online calculator and construction instructions

Transformer for Ground-Independent Receiving Antennas - Transformers theory and calculator of turns on binocular cores. Comparison with toroid cores.

Inverted V - Described is a simple inverted-V antenna which, when used with a balanced ATU, can be used on all the main Radio Amateur HF bands (80, 40, 20, 15 and 10m). The cental support is made in such a way that the wire can be coiled up for storage when the antenna is taken down.

Base Loaded 160M Half-Sloper Antenna - K0EMT 160 meters sloper antenna

5/8 Wave Vertical Antenna Calculator  ^{updated  pop} - Design your own 5/8 wave vertical antenna. A simple jscript calculator at Antenna Elmer.

CantennaCalc - Kioan's calculator for building a Cantenna , directional waveguide antenna for long-range Wi-Fi

BG Micro - All kind of electronic components, Hobby Electronics and Parts, motors, Sun power solar panels, switches, rechargeable batteries, RF Coils, Coils and Chokes

Filtronetics Inc - Maker of filters, oscillators, cristals Coils, Toroidal Inductions, Solenoids, Bifilar wound Solenoids, Trifilar Solenoids and Transformers Located in Kansas City, Missouri

D-STAR Callsign Calculator - This is a user-friendly web page based D-STAR call sign calculator that requires no installation or configuration to use.

D-Star Call Calculator - Calculate how to set call signs

USAPhotoMaps - Free Windows APRS Client with capability of downloading free aerial photo and topo map data.

Improper Loading of Amplifier - Improper tank adjustment and excessive drive are equally harmful to component life, and either can create splatter

Coil Inductance Calculator - Calculate the inductance of a single-layer, air-core coil.

Resonant Frequency Calculator - This web based application will compute circuit values required for an L-C circuit to resonate at given frequency. Also it will compute the resonant frequency if given values for L and C.

Electronic calculator - Some simple electronics calculator in javascript

Loss Calculator - Calculate power loss depending on coax cable you use