swr 70cm

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.

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

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

70 cm helix antenna - An Helix antenna for 70 cm band and satellite reception

70 cm Moxon - 70cms Simple Moxon 2 elements antenna

A 70cm Big Wheel Antenna - This is a 70cm big wheel antenna which is used at DB0FAI beacon

70cm 2 x 11 elements Cubical Quad - A group of 2x11 elements all grounded quad antenna for portable operation on 70cm. Included detailed pictures and measurements.

Ground Plane Antenna for 70 cm - It is easy to homebrew this quarter wave ground plane antenna for 70cm.

70cm Magnetic loop - UHF magnetic loop antenna by PA3CNJ

70cm Magnetic loop version - Second version of the UHF Magnetic loop by PA3CNJ

YouTube - jpole homebrew - jpole 2mtr 70cms homebrew antenna

Construction Principles for UHF VHF Yagis - The Construction Principles for Duoband-Yagis 2m/70cm by DK7ZB

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

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

South Lakeland Repeater Group - Supports 2 analogue (GB3LD 2m & GB3LF 70cm) and its NEW D-STAR digital GB7LF.

GB3EX East Devon Repeater Group - EXETER 70cms Repeater page. The repeater GB3EX, has been operational since 1972.

GB3BS Bristol 70cms Repeater Group - Amateur radio uhf repeater covering the bristol area - callsign gb3bs

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

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

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

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.

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