40 metre

Vertical Antenna For 40- 80-160 Meters - The basic antenna is a vertical monopole, using elevated radials to complete the ground plane by k5oe

Bicycle Rim Antenna for 20 Metres - A small transmitting loop antenna for 20 metres using a aluminium bicycle wheel rim.

Vertical Moxon for 40 meters - A vertical half-moxon for the 7 Mhz by F6IRF

F5KIN HF vertical for 7Mhz - A 11 m fishing pole vertical antenna for 40 meters band in french

Dual Band vertical antenna for 20/40 - A 20 and 40 meter vertical on Autopilot by K6MHE PDF File

80 meters beacon antenna - A vertical antenna for vk2zay 80 metre CW beacon.

End-fed Inverted V for 17-20-30-40 Meters - Four band lightweight antenna, that rolls up into an small Grundig antenna case by N0LX

I0SJC G5RV antenna - A plan to homebrew a G5RV antenna, tunable on 10-15-20-40-80 meters band

Beverages on 40 Meters - Gary Breed, K9AY experience with beverages on 40 meters

Another vertical antenna for 30, 40 and 80 meters - This article is to describe a multi band DX-dedicated antenna offering a minimum of compromises (such as lossy traps), for the hams not having any high-support

Inverted L Portable Antenna - An 87ft inverted L portable antenna working on 80 40 30 20 15 meters band by N5ESE

HF Receiving Loop - This experiment was inspired by Peter VK2TPM's receiving loop experiments for 80 metres.

MFJ-940 modification - The MFJ-940 VERSA TUNER II is a useful little antenna tuner for the HF-bands. However it suffers from a minor design error, which can be easily rectified.

Build an antenna for 23 cm band - Building an omnidirectionnal antenna for the 23 cm band, 1240 - 1270 Mhz

7db for 7 Bucks - 1993 QST Article of a 2 meter beam antenna by WB0CMT

Antenne verticale HF. - A vertical antenna project than can present low swr from 40 to 10 meters by using a balun in french

W3DZZ Antenna - A wire antenna for HF bands of 80 40 20 15 10 meters

Yagi Beams at VK2BA - 6 Metre array 7 elements on 12M boom, 10 metre aray - 5 elements on 7M boom, 29MHz, 6el yagi

Antique Radio Knobs - Specialize in reproducing antique radio knobs and parts from the 1920's - 1940

KL7AA Anchorage Amateur Radio Club - The Anchorage Amateur Radio Club is the largest amateur radio organization in Alaska with over 340 members.

30 Metre QRSS Beacon - 10 Mhz beacon project by VK2ZAY

Radio Direction Finding - introduction - History of Radio Direction Finding, performance and limitation of RDF Systems, RDF for non professional use

Live VLF Natural Radio - A collection of VLF natural radio live streams. Where possible, streams are synchronised to provide stereo pairs with baselines of up to 4000 miles.

40 AMP Power Supply - G4YNM article on a 40A power supply unit

The AGC-80/40 - A Regenerative Receiver with AGC for 80 and 40 Meters by Rick Andersen, KE3IJ