40 windom

VHF UHF Ground Plane Antennas - Ground plane antennas for 144, 222 and 440 MHz

40 m Lazy H array Antenna - Lazy H Array for 40 meters band by NA4L

Boom for phased delta loops - Antenna boom to support 40 meter phased delta loops

Delta Loop for 40 meters - A delta loop antenna for 7 Mhz used by IR8A team in italian

Shortened Dipole for 40 Meter - A shortened dipole antenna for 40 meter band

30 40 Meter Hex Beam Antenna - A hex beam antenna construction project for 30 and 40 meters band by N6AQ

Open Stub J-Pole Project - A 144/440 dual band open stub J-Pole Antenna project by NT1K

Magnetic Loop for 40 meters - A magnetic loop antenna for 7 Mhz by ZL1BJQ

Multi-band loft-mounted dipoles - Multi-band loft-mounted dipoles for 40, 20, 17, 15, and 10m

Homemade Loaded Coil Dipole - Homemade Loaded Coil Dipole ( w8010 diamond ) for 10, 15, 20, 40 and 80 meter

40 m NVIS Square Loop antenna - A NVIS square loop antenna with a parasitic reflector for 40 meter band by NA4L

Traps for 160 meters band - Extending a 40/80 trapped dipole to 160 meter band

S9V 40M vertical antenna - A fiberglass-wire vertical antenna for 40 m band by WY3A

80m 40m Vertical antenna - HF2 antenna, home made vertical antenna

5 bands HF portable antenna - A vertical portable antenna system by W0SJS that will work on 40, 30, 20, 17 and 15 meters

Trap Dipole for 80 40 20 mt - A W3DZZ trapped dipole for 80 40 and 20 meters band by ZL1BJQ

HB9CV antenna - An high performance directional antenna plan with dimensions for 40 to 10 mt bands

DL2NBY Contest Calendar - This site provides dates and rules of nearly 400 Amateur Radio HF contests.

W8JI Contest Station - Middle Georgia USA contesting station. Consistent record holder in 160 meter and 40 meter contests.

K6VVA/KL7 - IOTA NA-240 Alaska 28-30 June 2012

K4DPK VFO Stabilizers - VFO Stabilizer for Kenwood 120, 520, 820, 530, 830 Yaesu FT-101, 901,2 TenTec 580, 540, Triton, Corsair, Omni series, Swan 350, 500cx, Collins KWM 2 and 2A, Drake TR4, T4, R4, Heathkit HW101, SB 104a....and many others

SB220 refurbish - Heathkit SB220 refurbishing by PA5CA

Frankenstein. Heavy duty single 3-500Z Amplifier - This project will be a single 3-500Z with a twist. This amp will run about 3600 volts on the anode which should allow for a full kilowatt with about 50 watts of drive. This amp cover 20,40,80 160 meters

Home Made duplexer - Homemade UHF/440Mhz Amateur Radio Repeater Duplexer

440Mhz Interdigital Bandpass Filter - Homebrew Amateur Radio 440Mhz Interdigital Bandpass Filter