phased vartical 40m

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

2 Stack Match Yagi Antenna - Solves antenna matching problem with two phased antennas. Stacked rotary beams are popular. However, connecting two 50 Ohm antennas together presents some problems.

Dual Band Dipole 20-40m - A simple dipole built for two-band operation can be used for portable use and operate 20 and 40 meter bands

Phased 40M Wire Verticals - Experiments with phased wire vertical antennas on 40 meters at VA7ST

Rotatable 40M Dipole - The Linear-Loaded "Crappie" 40M Rotatable Dipole A Short 40 Antenna You Can Build for $50 or Less by VA7ST VE7ASK

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

40m & 80m portable wire antenna - G8ODE antenna project, where the 40m & Short 80m antenna was deployed as a sloping wire antenna using the 10M fibre glass fishing pole and a hook on the house's gutter-board

Vertical Antenna for 7 MHz - DF9CY experience on a vertical antenna for 40 meter band

40m Mobile Antenna - A mobile antenna for 40 meters band by G4DCH

Vertical phased Array - A SM3HXD vertical phased array antenna system

G3WZT Phased Verticals - Vertical phased antenna systems plans by G3WZT

Phased Array Adjustment - KM5KG article presents a lumped-parameter tee-network model of the coupling between radiating elements in a phased array in order to provide a physical and intuitive understanding of phased array operation and adjustment interactions

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

QRO End Fed Half Wave Antenna Coupler - A 40m through 20m QRO End Fed Half Wave Antenna Coupler by Steve Yates - AA5TB

A Junkbox Multiband Bugstick - A junkbox bugstick for 20m, 17m, 15m, 12m, and 10m bonus at the bottom a junkbox bugstick for 40m

HF Antenna - 6m to 40m - G8JNJ Fat-Max HF Antenna - 6m to 40m - a poor man’s Steppir

Duoband DK7ZB-Yagis 2m and 70cm  ^updated - These Yagis cover the range of 144-146MHz on 2m and 430-440MHz on 70cm. They can be used for alle modes (FM and SSB/CW). On both bands the SWR is good across the whole band.

Antenna Engineering - Antenna Engineering specialise in producing a range of high quality aluminium HF verticals ranging from mono band single element verticals to multi element phased arrays.

Moonraker 4 Antenna manual - English manual of the AV-140Moonraker 4 antenna

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

Homebrew 40m CW Transceiver - 7N3WVM homebrew project of a 3 W output CW transceiver on 7 MHz band

40 Meter QRP Transmitter - A simple 40 meter CW transmitter, it sports full break-in operation and 250 mW of output power.

The Rock-Mite CW Kit - The Rock-Mite is a 40m CW kit offered by Small Wonder Labs . It features built-in keyer, direct conversion receiver with a crystal RF bandpass filter, 500 milliwatts of power, and switchable frequency offsets to work around QRM

A 40 meter QRP Transceiver - A 7 MHz homebrewed QRP transceiver project with full schematic and detailed pictures by DL5NEG

40 m Band Direct Conversion Receiver - Practical and usable direct conversion receiver for the 40 m CW band