40 metre traps

KK5BL How To Build A G5RV Antenna  ^pop - How to build a G5RV Transmitting antenna Originally posted to the packet bbs system by KC6CFF. The G5RV is an easy-to-build 80-10 dipole requiring no traps. All bands are covered, including 30, 17, and 12. The G5RV has high SWR, by design, on most bands and a tuner is required

VK5BR 20-40 Metre EH Antennas  ^pop - How to construct a very small but efficient Antenna with PVC Plumbing tube and discarded fruit cans. - Just the thing to fit in a small space such as the house attic

I4SBX EH Antennas - Three eh antenna plans for 20 40 meters bands.

VHF TX Loop - VHF Antenna in a lunchbox. The magnetic loop on two metres band Lloyd Butler VK5BR

Compact Restricted Space 40 Meter Wire Antenna - An inexpensive easy to construct compact 40 meter wire antenna that will fit in a 20 feet by 20 feet space

A Feasible Full Sized 40 Meter Beam - This project started as a result of renewed interest in 40 meters coupled with the desire for an antenna system that would be more effective than the simple dipole.

G5RV Beam  ^pop - G5RV 40m Beam Antenna

A Vertically Polarized Delta Loop for 40m  ^pop - Practical contruction and designing notes of a delta loop for the 40 meters band

ZZ Wave Net - ZZ Wave Net is a 40 & 80 meter full wave loop designed to fit on a city lot. ZZ Antenna is a folded dipole bent into an inverted V loop

Homebrew G5RV  ^pop - A G5RV plan for 10-160 meters, 10-40 and 10-80 meters band

G5RV on 75m and 40m - Why the G5RV is a good antenna on 75m and 40m

Plumbers Delight J Pole Antenna Project - This article was reprinted to assist new hams at building their own 2 metre antenna. This design is very rugged and can be built for a few dollars with most of the parts available at your local Home Depot.

W6NL 40m Moxon Yagi - Designed and built by W6NL looks like a loaded yagi this 2 element moxon antenna offer 6dbi

OptiBeam - OB2-40M - High efficient, extremely compact yagi by the use of the ‚Moxon Rectangle Technique

JJ6 Antenna - VK2ABQ G6XN W4RNL G4ZU comparisons

A Portable Multi-Band Magnetic Loop Antenna  ^pop - Described here is a simple multi-band magnetic loop antenna designed for 20, 30 and 40 metres, but by changing the overall length of the wire coverage of other bands is feasible

Antique Radio Repair and Speaker Reconing - Servicing radios made in the 1930's, 40's and 50's. Speaker reconing for vintage and modern speakers.

30m QRSS Junkbox Beacon - This simple 30m QRSS beacon is built entirely out of junkbox parts, the only component purchased specifically for this project was the 10,140kHz crystal.

Boyer Valley Amateur Radio Club - Boyer Valley Amateur Radio Club (BVARC) was started in 1993 with 5 members. We currently have 40-45 members. The Boyer Valley Amateur Radio Club is a "Not for Profit Association of Amateur Radio Operators" based in Harrison county, Iowa.

Vatican City Radio - Every day Vatican Radio broadcasts programmes in 40 different languages in five continents, produced by over two hundred journalists located in 61 different countries. Vatican Radio: producing more than 42.000 hours of simultaneous broadcasting covering international news, religious celebrations, in-depth programmes and music. Vatican Radio: from topical subjects to in-depth programmes on moral questions. Vatican Radio: offers to everyone, catholic or not, the Church's point of view.

Morse Pilot - Morse Pilot is a popular and very comprehensive freeware Morse code tutor, trainer with decoder and encoder functions. Morse Pilot is intended for personal training, for example for radio ham or aviation examinations.

Homebrew equipment by JR3XUH - More than 40 of equipment; rigs and test devices.

Garex VHF preamp - It is available for spot frequencies in the range 40 - 250MHz, where a typical gain of 26dB can be achieved

BFP196P  BJT - BFP196P BJT by Infineon vs BFG540X BJT by Philips

GaAs FET preamps - Build a good GaAs FET preamp for 2 meters, 222 or 440 Mhz