windom 40

Capacitive Antennas - HB9MTN Capacitive antennas for 40m, 30m AND 20m

Zippiro antenna for 40 Meters - Very compact and high efficiency antenna ,very low radiation angle even at low height.

40 Meter TAK- tenna home made - Bill's HomeBrewed 40 Meter TAK-tenna or TAK Antenna

40M Twin Half-Square Array - 40 meters elevated vertical antenna array at VA7ST

Delta loop antenna for 40 Meters - A full wave delta loop antenna for 7MHz

4 elements yagi for 70 MHz - A portable 4 elements yagi antenna for 70 MHz by yu7ef

40 m Band Delta loop Antenna  ^updated - 40 meters band Delta loop vertically polarised antenna by YO4DFT

40/80 Trap Dipole Design - An home made trapped dipole antenna for 40 and 60 meters band by 2E0HTS

Folded dipole antenna by N4SPP - A quarter size cobra dipole antenna, a multiband dipole antenna for 40 to 10 meters basedn on original cobra dipole design but with a limited space by N4SPP

End Fed Half Wave Antenna Coupler - A 40m through 17m Mini End Fed Half Wave Antenna Coupler by Steve Yates - AA5TB

RX antenna for 160/80 meters - RX Antenna 160m/80m Band Splitter/Switch, a small project that will work along with the K9AY RX antenna

7MHz - 14MHz Slot Fed Skeketon Antenna - 40 to 20 meter band slot fed skeleton HF Antenna.

Tower Project at KD5OM - U.S. Tower MA-40 installation at KD5OM

Multiband HF Vertical - A telescopic pole that you adjust to suit the band you're working on , tested on 40 20 and 15 meters band by M0PZT

GB3CAM Cambridge microwave beacons - Two beacons in 3 and 1.2 cm band, 10368.755 MHz and 24048.870 MHz

QSY Society Amateur Radio Club - The club is promoting awareness of Henry Hudson's 400th anniversary voyage of discovery, as well as encouraging others to try amateur radio and foster goodwill.

QROlle, 6 Band QRP-rig - QROlle QRP-rig. 6 Band Shortwave rig with SMD:s. 160, 80, 40, 30, 20, 17 meters SSB/CW QRP-rig. All documentation in English

GAP Titan Product Reviews - Covers 10m 12m 15m 17m 20m 30m 40m and 100 KHz on 80m, & WARC Eham Reviews

GAP Titan DX - Test Details - GAP Titan DX 10 15 20 40 meter performance tests by AA3RL

Yaesu VX-8R/E - Specifiation at rigreference.com about Yaesu VX-8R/E

2 x 4-400A Amplifier Deck - A Class C Amplifier rebuilt with 4-400A tubes by W7IUV

5-band RF Power Amplifier - This project uses a widely available IRF510 MOSFET, work on HF 80, 40, 30, 20 and 17 meter bands

Connect a frequency counter to MFJ 9406 - Modification to connect a frequency counter to a MFJ-9406 50 MHz transceiver by ON6MU

A 40 meter SSB QRP transceiver - This transceiver was conceived as a power-efficient, small, lighweight unit to be carried in the backpack, along with antenna and battery.

DSB/CW QRP rig for 20 and 40 mt. - An experimental DSB/CW QRP rig for 20 and 40 meter bands