project kits

WE6W Field Day Antena design - Interesting article on how build your own field day antenna

10m Aluminium Moxon Construction - Building a moxon antenna with aluminium tubes

Magnetic loop for 80-40 meters - Evolution of a project of a magnetic loop resonating from 80 to 40 meters

Bazooka antenna for 40 meters - A bazooka antenna project for the 7 Mhz by PD7MAA

W3DZZ for 40 and 80 meter - Home made w3dzz antenna for 40 and 80 meters band

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

Wire antenna with coaxial cable traps - This multiband antenna 10-80 meters is a home made project by I1BAY. Has been used for SOTA activations with great results. Traps are done with coax cable turns, dimensions are in the attached schema.

Build a hanging dipole for 2 metres - Described here is a simple omni-directional, vertically-polarized dipole for two meters. Made from coaxial cable, it can be rolled up and stored in a small container

Multi Band Antenna Traps - These devices are called Traps, but they are actually more like frequency sensitive switches. They are parallel resonant, high Q, tuned circuits which provide a very high impedance at their frequency of resonance.

Copper Cactus Dual-Band - Copper Cactus Dual-Band Super J-Pole Antenna Project 2 meter 70 Cm Home brew antenna

RadioTeacher - Radio Teacher Project - hamelmer.com

K7SFN Frank - K7SFN personal page with some projects and pictures of his aerials

QRPKits - Hendricks QRP Kits is a company that specializes in high quality, low cost QRP Kits

Micro908 Kit - A re-usable control & computing platform for antenna measurement, PSK31 digital modems, audio filtering, signal source & VFO, memory keyer by AMQRP

Solar Panel Charger Project - A flexible, foldable, and durable solar product that produces enough power to charge your Battery Pack quickly

4 x 813's RF Amplifier Deck - This amp project was an exercise in cheap! The design criteria was to use only components in the JUNQUE BOX

80 m Hexfet power amplifier - 80m hexfet power amplifier by W7ZOI

Offset Attenuator for Radio Direction Finding - Instead of acting directly on the incoming signal, an offset attenuator works by adjusting the strength of an offset signal

Active attenuator - This active attenuator works as a simple mixer by WB2HOL

Simple adjustable passive attenuator - This adjustable passive attenuator works as a "waveguide beyond cutoff." It can be constructed in about ten minutes from parts available locally.

AVR Beacon Keyer Project - Description of an HF beacon keyer with telemetry. What makes the keyer rather different is its versatility - it is a multi-mode unit, with ASK and FSK modulation, sending Feld-Hell and Morse on command.

The NVARC Ugly � Filter Project - Project to build sets of band pass transmitting filters for reducing the interference between HF transceivers operated in close proximity

Variable regulated power supply - 1.2-30V 1.5A variable regulated power supply

15 A from a PC Power Supply - 13.8 V 15A from a PC power supply

The Smart Switch - The purpose of this project is to build a smart switch A smart swith is a swith that needs a short press and the power will be turned ON.