4m transverter

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

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

5 elements OWA Yagi for 20 meters band Priority listing - Computer Optimized using the very latest techniques. Particle Swarm Optimisation ensures the best balance of bandwidth and performance and you have it in this antenna. An easy build antenna for all

4 Element Yagi Project for 144MHz - A homebrew project for a 2 meter 4 element yagi beam antenna by 2E0HTS

8el 144MHz Super Low Noise OWA Yagi Priority listing - This is a super stable 50OHm direct feed Yagi for 2m using 1/2 inch tube and a real easy build.

14elem. 144MHz OWA EME Yagi - Simply a superb 50Ohm 2m Yagi with excellent bandwidth and most important, low noise.

18 element 144MHz EME LFA Yagi - If you want a Yagi for EME with one of the best ever Sky temperature and G/T figures ever, look no further

19 elements Low Temperature 144MHz LFA Yagi Priority listing - This antenna has been deisgned using the very latest PSO techniques available today. There is simply no other 2m antenna of this boom length with better Sly Temperature or G/T figures.

8 Elements Quad for 2 meters - A 8 elements Cubical Quad antenna for 144MHz

14 el 70 MHz Low Noise LFA Yagi - This is a true monster Yagi for the 4m band which has a 50Ohm feedpoint with wide band performance yet the gain and F/B of a low impedance Yagi.

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

G7CNF Hentenna article - Experience of a VHF QSO with IW0FFK using an Hentenna for 4 meters band.

4 element Cubical Quad for 2 mt - A 4 elements cubical quad antenna for 144MHz for marittime mobile usage

DL4ME - Ham Radio and HF Contesting by DL4ME

WebSDR in Atlanta USA - Web SDR located in the Atlanta, Georgia area in EM74 currently tuning 80 40 and 20 meter band, managed by WB4MAK

Booster 144 Mhz amps - Professional ham radio VHF amplifiers made in indonesia

International Marconi Day GB4MPC - Marconi Point, Cullercoats Special event station

QuickWAS - QuickWAS, ham radio WAS tracking / reporting software by Bill Mullin, AA4M.

A 1296MHz Amplifier - Two coupled PAs with each 2 times 2C39 deliver around 400W RF.

400 W RF Power amplifier for 144 MHz - G4DCV's 144MHz amplifier with a pair of GI-7b Russian triodes

DJ9BV Power Meter - PCB for the DJ9BV Power Meter taken from DUBUS 3/87

14MHz SSB transceiver - 14MHz SSB 10mW transceiver by JF1OZL

13 cm transverter - DF5QZ transverter project for 13 cm band

13 CM transverter - This transverter can deliver about 25w on it's own, and runs on 12v, making it suitable for portable service.