quagi calculator

EH Antenna calculator  ^pop - Calculate eh antenna components dimension with this online form

SWR Calculator - BesserNet Reflectometer is a fun SWR calculator and simulator Java applet

Helical Antenna Calculator - This is my simple implementation of the ARRL Antenna Book design equations for the axial-mode helical antenna.

Helix Calc  ^updated - Helix antenna calculator, to design and make helix antenna plans

Online helix antenna calculator - PHP Helical antenna calculator, need SVG viewer

K7TJO copper pipe hentenna - Hentenna calculations and resources. Copper tubing / pipe with javascript calculator. Rectangular loop with matching section.

Moxon Rectangle Calculator - Program to calculate the dimentions of a Moxon Rectangle. All equations correlated to NEC antenna modeling software for wire diameters from 1e-5 to 1e-2 wavelengths.

Cubical Quad Antenna Calculator - The function of the calculator is to give all of the needed sizing to construct a good 5 element quad antenna for amateur radio use.

QTF Calculator for 10 GHz Beacons - 10 GHz Beacon Database in excel format that Calculates the QTF from any locator to any beacon

Hamradioindia a website by vu2fd - a website by vu2fd with theory lessons, details on rules and regulations and planty of homebrew projects for radio amateurs, java calculators.

Great Circle calculator - Excellent on-line java great circle calculator with perl source code and excel spreadsheet for gc calculations

Design and build helix antennas - An on-line javascript calculator and quite a few pictures to show how to make a helix antenna.

ERP Calculator Plus - ERP Calculator is an Amateur Radio software utility designed to perform a side-by-side comparison of two Ham Radio antenna systems. ERP Calculator comes pre-programmed with data files including published data for several popular brands and types of coax cable as well as several popular antenna system brands and models. ERP Calculator displays values of ERP, Antenna Power Gain, Antenna Feed point Power, Antenna System Gain in dB, Antenna Gain in dBd, SWR Attenuation in dB, SWR Power Attenuation, Coax Loss in dB, and Coax Power Loss

J Pole calculator  ^{updated  pop} - Enter the operating frequency and calculate dimensions of your jpole antenna

AM Loop Antenna Calculator - Java script calculator for AM loop antennas

HamCalc v1.3  ^pop - By G4VWL, HamCalc is collection of calculators for radio amateurs: Antenna ERP calculations. Attenuators. Audio Filter design.Coil Winding. Decibels. Great Circles map and calculator HF Filters HF Traps Metric conversions OP Amps QRA Locator to Latitude/Longitude (and back) Radio Horizon calculator Resonance Satellite orbit calculator Timer calculations (555 timer)Zener Diode calculations

SWR Calculator - Computes the Standing Wave Ratio, given the power readings on a line.

Band Master - Band Master is a program for Radio Amateurs that downloads DX spots and displays them in different ways, including a graphical band map. It can be used either as a stand alone application or as part of a logging or contesting software via the COM/OLE interface. Rig control, country/province resolution, azimuth/distance calculator and online QRZ lookup are built-in, propagation prediction and geographical mapping are available through integration with HamCap and DX Atlas respectively.

Smith chart calculator - linSmith is a Smith Charting program, mainly designed for educational use. It allows defining multiple load impedances (different frequencies), and adding components (discrete components and line sections) in series and parallel. It plots the impedances on the screen, shows the values in table format, and is able to generate publication quality Postscript output.

Electrist - The Top-Rated Electrical and Electronic Engineering Calculator for Palm OS

Live MUF - Freeware live MUF calculator by EA6VQ-Gabriel and G7RAU-Dave for live calculating the possible e MUF on VHF during es season via a telnet link into dxc

RAUMUF - MUF Calculator by G7RAU ( upload updated 31 August 2002) for calculating the possible e MUF on VHF during es season.

Amateur Radio RF Safety Calculator - University of Texas Amateur Radio Club RF-Calculator. This is a main beam power density estimation program intended for use as part of a routine evaluation of RF safety compliance with FCC regulations

LCF Calculator - LCF online Calculator, calculate relation between Frequency Capacitance Inductance and Reactance

Coaxial Cable & Power Handling - This calculator can be used to estimate the attenuation (dB loss), power handling capability, and transmission efficiency for some of the more popular Wireless Communications and MIL Spec cables at the frequency of interest