swr 3000

5el 28MHz OWA Yagi Priority listing - 28-29MHz with an SWR less than 1:1.1 and good performance

A 6 element OWA Yagi for 28MHz Priority listing - This is a high-gain, wideband OWA Optimised Wideband Array Yagi which covers the 10m band with an SWR of less than1.1:1 from 28-28.900MHz.

4 element yagi for 24MHz Priority listing - Optimised with the very latest PSO (particle Swarm Optimisation) techniques. Perfect flat SWR and excellent performance throughout the band and easy to self-build.

3element 24MHz LFA Yagi Priority listing - Computer optimised with the very latest Particle Swarm Optimisation techniques. A stunning perfoming 3el with SWR not above 1.1:1

7elements 21MHz OWA Yagi - An Excellent 15M compact 7el OWA Yagi for the 21MHz band. SWR remains below 1.1:1 from 21-21.45MHz. Tapered elements in Metric and USA sizes

7 elements OWA Yagi for 20 meters band - Optimised Wideband Array with low SWR across the whole of 20m with excellent gain and F/B. European and USA sizes

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.

How good an antenna is ? - How good is an antenna? Four figures describe how good an antenna is compared to the required performance, swr directivity gain and bandwidth

SWR Table - Power loss table by SWR values

VSWR Reactive Power - Many antennas and antenna designers neglect the true cause of loss. The major problem using short antennas is the reactance, not the length

MT-3000A Modification - Article on the Dentron MT-3000A antenna tuner and some good modifications by W1AN

Portable Antennas for 2 m and 70 cm - Comparing SWR of vertical HT antennas for VHF and UHF

Low SWR Podcast - Another podcast for the radio amateur by KD0BJT KD0BJS

5W SWR Meters - HF VHF UHF Digital SWR & Power meter manufacturer based in China

High SWR after AL-811 10 Meter mod - Very High SWR with the 10M Mod to Ameritron AL-811 amplifier

Yaesu FTDX-3000 - Yaesu FT DX 3000 HF/50 MHz 100W Transceiver product page at Yaesu UK

ID-Elektronik GmbH - ATV products manufacturer, antennas, ATV transmitters, SWR meters, amplifiers

409 Shop - 409 Shop is an Ham Radio and electronics online shop based on Hong Kong deliver worldwide. Ham Radio transceivers, batteries, swr meters, antennas and other ham radio accessories

Yaesu Microphone Pin Outs - Vertex Standard, Yaesu mic pin outs for: FT-90, FT-100D (1990s), FT-2600, FT-3000, FT-7100, FT-8100.

Digital SWR Power Meter project - A PIC16F876 based, automatic 1.8 – 60 MHz Digital SWR/WATTmeter capable of displaying both the SWR and P.E.P.power values, with a bar graph on the second line tracking the instantaneous power.

Switching Regulator Basics - Switching Regulator Basics By Mike Martell N1HFX

The SWR Obsession - Many Hams suffer from a cruel obsessive-compulsive disorder. They're driven to achieve the lowest possible SWR even when it is not necessary by WB8IMY

What Does Your SWR Cost You ? - Wondering whether to spend a fine day with the YL or with the antenna? This article may help you decide by W1GV

Standing Wave Ratio - About VSWR or SWR by Northwest Amateur Radio Club

A Wifi (V)SWR Meter - When building antennas for the Wifi band , a need for an easy way to check the antennas arise. This is a project for a 2.4 GHz band SWR Meter