40m yagi homebrew

10 Meter Vertical Dipole - Homebrew a vertical dipole for 28 Mhz by N2UHC

Petlowany Three-Band Burner Antenna - The Petlowany Three-Band Burner is a simple, low-cost, trapless short vertical antenna which amazingly works on three HF bands (20, 15 and 10 meters). This web page contains pictures, performance data, and enough construction details so you can homebrew your own.

5 Element yagi for 10 meters - A directional 5 element yagi antenna for 28.5 Mhz in spanish

A 2 elements yagi antenna for 28 Mhz - An inexpensive antenna for 10 meters band in spanish

A 7el VHF yagi - DK7ZB'7 element yagi beam

The Hudson antenna - A vertical antenna for 80 and 40 meters project with lots of assembling pictures and plan by LU9DPD in spanish

40M 3 element beam - History project and dimensions of a 3 element yagi beam for 40 meters band

TLV40m antenna - Top Loaded vertical antenna for 40m Band with elevated radials

Top loaded vertical - Vertical Antenna for 40m Band with elevated Radials Top Load is a Mesh 2 x 1 meter (Netz 2x1m) enamelled wire 0.5 mm diameter (CuL 0,5mm)

Homebrew ladder line - Homebewing ladder line discussion at qrz.com

Antenna construction hints - Hints about Jpole Yagi and Quad antennas

AO-27 yagi antenna design - A 7 elements yagi antenna for the AO-27 satellite reception

AO-40 70cm Uplink Antenna - homebrew satellite antenna

Small Tuned Loop AM Broadcast Antenna - Alan yates vk2zay's ham radio website, homebrew construction, general electronics, high voltage experiments, amateur rocketry, and general geek stuff

Corner reflector antenna - Do you need a high gain antenna? Have you suffered on picking up interference from unwanted direction? You need a directional antenna but a 12 element Yagi will be too attractive!

The EZ-Tuner - The "EZ-Tuner" is a homebrew automatic legal-limit antenna tuner that covers all amateur HF bands from 160-10 meters. Using a T-network design and controlled by a BASIC Stamp BS2sx microcontroller, the EZ-Tuner will match at least a 16:1 VSWR for either unbalanced or balanced transmission lines.

1200Mhz 40elements YAGI - A table with element size and spacing for a 40 Elements yagi antenna for 1200 Mhz

Building VHF antennas - An article with notes on home-brewing a 2 meter yagi antenna, a 70 CM "potato masher" and a 70 cm yagi antenna

6 Element Yagi for 432 Mhz  ^updated - U6YRN 6 element yagi antenna for 430-450 Mhz in spanish

Yagi-logper - Yagi-logper is a linux GPL program to model a Yagi or Log-periodic antennas with horizontal cylindrical dipoles.

Relay Driver for Power Amps - A simple but complex relay driver for power amplifiers

Six-Meter Linear Amplifier - This homebrew six-meter linear amplifier started off life as a "junker" Alpha 76PA h.f. amplfier. Power output is 800W

Homebrew Butterfly Capacitor - Butterfly capacitors are hard to find, expensive but they can be home made by PY1AHD

Universal QRP Transmitter - Here's the homebrew Universal QRP transmitter adapted from work by Wes Hayward - W7ZOI. The circuit originally appeared in QRP Classics published in 1980 by the ARRL

40 meter QRP Transceiver - This semi-homebrew QRP (low power) CW transceiver is based on the ARK-40 transceiver kit, by S&S Engineering. With its built-in CW keyer and 5 watts of power, the basic ARK-40 transceiver is an outstanding 40 meter CW performer