40 dipole

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.

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

K9FV 40 meters band loop - A Mississippi Style 40 meter magnetic loop made from available aluminum conduit, this antenna will not disappoint by Ken Holland, K9FV

40M Fullwave Loop Antenna - KA6WKE full wave antenna for the 40m amateur radio band

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

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

Build your first dipole - The dipole antenna is an easily designed and made antenna usually used on HF, although can be (and sometimes is) made for VHF and UHF antennas, and in varying forms is also used as part of different designs of antennas – i.e. as the driven element for directional antennas.

Do You Need an Antenna Tuner  ^pop - Maybe yes, maybe no. It all depends on the type of antenna and feed line you're using. QST Article in pdf format

AR88 page - This model was introduced in the early 40's to replace or augment the HRO in applications demanding a more onerous duty than basic operational point-to-point communications such as intercepting coded axis radio messages during WWII.

MF and HF Amateur Radio Band Charts - Easy to read set of band charts for the amateur radio MF and HF bands: 160, 80, 60, 40, 30, 20, 17, 15, 12, and 10 meter by W5JCK

Nevada County Live scanner - Nevada county CA live fire/police scanner by fmwifi.net

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.

Radio 510 International - European relay station broadcasting every weekend on short-wave to all of Europe, Northern Africa and the Middle East on 13840 kHz.

Radio Pirania - Pirate statio based in chile transmitting on 48 meters band

Andino Relay Service - The ANDINO RELAY SERVICE, is a free and true pirate station which broadcast with its own transmitter, also lending its broadcasting facilities to all free stations of the World. We are in a secret location, near to the beautiful and majestic Andes mountain range.

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