aries super 40

Shortened dipole for 10 & 40m bands - A shorten Dual-Band Dipole with overall length of about 11 m. For this antenna traps are substituted by inductors, in order to cover the 10 & 40 m. Bands.

Easy wire antenna for 40-20-10 meters - PE3HMP project of a triband wire antenna for 40 20 10 meters band, made using home made coils

Invisible DX antenna for the low bands - Article by DK5WL describes a multi-band DX antenna for the 160m-40m amateur radio bands with low visibility but great performance for long distance communication.

Dual Band 40m/17m dipole - A center feed dual band dipole for 40 and 17 meters by W5DXP

2 elements YAGI for field day operation - A wire yagi antenna for 20 and 40 meters band suitable for outdoor and field day operations

Trapped dipole for 40 80m - I0SJC trapped dipole for 40 and 80 meters, traps done with 170 turns 1 mm diam, on a 3.2 mm cilinder in Italian.

Guanella 1:1 VHF choke balun - A model of a Guanella 1:1 VHF choke balun using a FT140-61 core

Wire Dipole for 7.05 MHz - Inverted Vee antenna for 40m with simulation data by DF9CY

Inverted V - Described is a simple inverted-V antenna which, when used with a balanced ATU, can be used on all the main Radio Amateur HF bands (80, 40, 20, 15 and 10m). The cental support is made in such a way that the wire can be coiled up for storage when the antenna is taken down.

Noise Reduction on 40m Priority listing - DF9CY implementation of W1HIS suggestion of inserting a common mode choke into a 40m antennas feed-line.

Open Wire Feed Line a second look - Put up the longest dipole you can fit, feed it with open wire line, connect it to the balanced output of your tuner and—poof! Instant multiband antenna. Is life really that simple? By Paul Danzer, N1II

The simple 144/440 copper pipe J - Projects by Dale Kubichek, N6JSX

The Thick Loop - The performance of a small magnetic loop can be improved constructing it larger, thicker or both. The antenna is covering from 12 Megahertz to 32 megahertz and adding a 156 Pico farads ceramic capacitor it resonates on the 40 meters band. by PY1AHD

Large multiband moxon antenna - This moxon antenna resonate on 80 40 and 10 meters, has been used for CQWW 2006 by a YU team project by YU1QT

W4INF Hidden House Loop Antenna - If you live in a restricted subdivision, you need to make the most out of it. This loop antenna is balanced line fed and works 40m-10m, does decent on 80m.

Traps for 40/80 m dipole  ^updated - I6DVX article on hoembrewing traps, using vetrnonite instead of common coax cable.

Balanced Line Tuner - A small Z-Match tuner, BLT, Balanced Line Tuner is a simple Z-Match tuner that works from 10-40 meters

G8JNJ Broadband HF Vertical Antenna - G8JNJ Broadband HF Vertical Antenna - Requires no tuner - great results from 40m to 10m plus 80m & 6m with reduced performance

High Performance 802.11 Antenna - It is cheap and simple and has a gain of about 17 dBi.

SARL Beacon Project on 40 Meters - The beacon project is a South Africa national system of beacons on the 40 meter band operating on a single frequency

WB7TJD Superstition Amateur Radio Club - Serving the East Valley since 1973

WebSDR on 20m, 40m and 80m  ^pop - On this page you can listen to and control a short-wave receiver located at the amateur radio club ETGD at the University of Twente. In contrast to other web-controlled receivers, this receiver can be tuned by multiple users simultaneously, thanks to the use of Software-Defined Radio

Lance Johnson Engineering - Manufacturer of ham radio accessories, D-LAY-5 Rotor Brake Delay, ECP-1 Remote 40-80-160 Preamplifier, GP-1 Radial Buss , Kansas City Keyer Elizabeth CO

DK9SQ Antennen - Walter Spieth Antennen offer, Duoband-Portable-Log. Periodic 2m/70cm, Vertical-Loop-Antenna,10-40 Meter and PortableW3DZZ-Antenna as well as fiberglass tubes

FSJ1-50A Superflex Heliax and PL-259 - Using Andrew FSJ1-50A 1/4" Superflex Heliax with PL-259 Connectors