hf array

Half Bobtail Antenna - design by Brian Williams, GW0GHF

A Loft-Yagi for Six Metres - by Brian Williams, GW0GHF

A vertically-polarised VK2ABQ Antenna - design note by Brian Williams, GW0GHF

Omni-Directional antenna for 6-Meters - Experimental omni-directional antennas for 6-meters band

Small vertical arrays - a guide to help install arrays

K7EM 80m 4-Square Array - This array has been in use since 1989 The SWR from 3.5 to 3.9 is below 1.5:1

KB1DIG's 2 Meter Antenna Design Gallery  ^pop - Home-brew antenna designs for VHF. 2-meter colinears, 2-meter Halo, and 6-meter Halo

Using Delta Matching on HF Beams - Using delta match with HF antennas design

Shunt feed a hustler mobile HF Antenna  ^pop - 40 and 20 meters mobile antenna

No tuner HF bands Center-Fed Antenna - HF Horizontal Center-Fed Antenna From W5DXP

Apartment antennas notes - HF Ham Radio antennas for apartments and methods of shortening antennas

Radiation and scattering - Basic antenna theory, Antenna directivity and effective area, Antenna arrays

Phased Arrays - Phased arrays of short vertical antennas, pdf file

Smithe Windom Six Band HF Windom antenna - HF Windom antenna, cover 80, 40, 20 15, and 10 meters, antenna design by K3MT

Sweden - FM Repeater - Amateur repeaters in Sweden

Iraq War Frequency Info. - IRAQ War Military HF freqs, Aero HF frequencies and Shortwave Broadcast schedules of interest

Bi-tronic Comunicaciones S.L. - Dealer for CB, HF, VHF, UHF, Kenwood, icom, in spain

Elettronica Turrisi - TRasceivers HF-VHF-UHF, repeaters, GPS, antennas, based in italy

2 m. Band VHF PA 5 Watts - A VHF power amplifier made with two cheap RF transistors, 2N3924 as driver and a BFS22A for final stage, giving an unexpected output power of 7-8 watts maximum

IK4AUY Sergio - Advanced QRP Low Cost Mosfets HF Linear Amplifier with schematics, IMD, gain data and more. Six articles about amateur radio.

converting Philips FM-828E to 6 metres - conversion of low band VHF Philips FM-828 E band down to 6 metres

converting Philips FM-92 E to 6 metres - conversion of low band VHF Philips FM-92E to 6 metres

converting AWA RT-85 E band to 6 metres - conversion of low band VHF AWA RT-85 transceiver down to 6 metres.

converting AWA 25M-22 to 6 metres - conversion of low band VHF AWA 25M-22 carphone onto 6 metres.

converting AWA 25M-1 to 6 metres - conversion of low band VHF AWA 25M-1 carphone onto 6 metres.