swr analyser

4m Slim Jim Antenna - This 4m Slim Jim Antenna is cheap and easy to build yet it greatly out performs the more usual dipole due to its low angle of radiation. An SWR of 1:1 is obtainable across the 4m ham radio FM band with a simple adjustment.

All About Ham Radio ladder-line - ladder-line is great - extremely low loss, even at high SWR. However, many hams refuse to use it because they are afflicted by common misconceptions

SWR, Impedance and Line Loss - This article deals with the practical aspects of SWR, line loss and input impedance.

SWR analysis of a G5RV antenna - Plotting SWR of a G5RV Antenna with a RigExpert analyzers

Understanding SWR by Example - Take the mystery and mystique out of standing wave ratio QST Article by K5DVW

Aaronia AG - Spectrum Analyzers - Handheld RF Spectrum Analyzer, EMC & Pre-Compliance Antennas, USB Analysers, Near Field Probes, EMF Shieldings

RF Calculators - A collection of calculators from everything RF for various applications VSWR, attenuator resistance valies, microstrip, coax, unit conversions and many more.

Using VNA to adjust Linear amplifiers  ^updated - Linear amplifiers cold adjustments with network analyser (VNA)

Switching Regulator Basics - Switching Regulator Basics By Mike Martell N1HFX

SWR calculator - Online VSWR Voltage Standing Wave Ratio Calculator

Spectrum Analyzer Tutorial and Basics - A summary or tutorial about the basics of the spectrum analyzer, what it is and what it is used for.

ZL2PD HF RF Signal Generator - This circuit came out of some work done for two antenna analysers

IW3HEV embedded antenna analyser - An interesting project of the popular IW3HEV antenna analyzer in and embedded solution by PA3CKR.

Digital HF Antenna Analyser Project - This antenna analyzer measures complex impedance over the 1.6 - 33 MHz HF spectrum by ZL2PD

Analog HF Antenna Analyser - A simple antenna analyser for the HF spectrum with a built-in signal generator with 3-digit LED frequency display.