power 105.1 fm

3 elements VHF yagi antenna - 3 elements VHF Yagi homebrew antenna designed with YAGIMAX 3. Maximum forward GAIN is about 8,17 DBi. This antenna offering an effective radiation power 4 times greater of the transceiver output by SV1BSX

Shortened vertical antenna for 7 Mhz - A simple drawing of a shortened antenna for 40 meters by using a PVC tube

Low Power 4:1 Balun - Build a Low Power 4:1 Balun , by Charles Greene, W1CG with full-color, full-resolution graphics from the pages of QRP Homebrewer

Magnetic loop antennas - Drawing and plan for an HF magnetic loop antenna

Moxon for 144 Mhz - A vhf moxon antenna plan

Adding to an Arrow Satellite Antenna - By adding a tripod for mounting, bearing indicators, and a pre-amplifier, you can create an impressive antenna system for picking up FM signals from AO-51.

CORNET 2.4 giga WIFI antenna

LT1F BadPower - Bad power -LT1F site of the circulo de radioaficionados rosario Argentina

OK0EF QRP Beacon - 10134 kHz beacon power is 500 mW Male Pritocno village, locator JO70BC.

NM-ARTS - Amateur Radio Technical Society - A hardware and software project group to support learning and creation radio circuits, general electronics, and uProcessor control systems

D-Star presentation and sounds - A powerpoint presentation of the D-STAR operating mode by K7VE includes d-star sound samples

Makidenki - Transvertes, AO-40 Convertes, FM-TV transmitters UHF loop antennas

Building a Low Power Beacon for 6m - by Ken Neubeck WB2AMU

BCFMCA D-STAR System - British Columbia Frequency Modulation Communications Association

Rhode Island Amateur FM repeater service Priority listing - This website explains coverage and construction for our repeaters. Includes useful links and an insight into the Ham community in Rhode Island

QRO-Parts.com - Svetlana tubes also Russian capacitors,vacuum and coaxial relay, for RF Power Linear Amplifier builders. Amateur-Radio, Broadcast. Full Online Catalog.

FILPRO - The most flexible and powerful Microwave and RF Filter and Multiplexer Design Software

144 Mhz power amplifier 4CX250B - This page provides information on the design and practical implementation of a rather inexpensive 144 MHz high power amplifier using a pair of ceramic tetrodes type 4CX250B by LA0BY

A 20W Amplifier for 2 meters - VU2RAR basic VHF power amplifier suitable for 144-146 Mhz output power can vary from 3 to 25 Watts.

Anderson PowerPole Connectors - This standard assures that any radio can be connected correctly to any power supply. Here you can find some assembly notes

1.8-54 Mhz Low pass filter - An easy to make HF low pass filter form high power by k8cu

12 Volt 30 Amp Power Supply  ^pop - Project for a 12 volt, 30 ampere Power Supply Unit

28 VDC Power Supply - This little project will make a portable 28 Volt DC power supply using two 12 Volt, 4.5 Ah rechargeable lead-acid batteries

20 Amp power supply - A 13.8 volt 20 Ampere power supply project

Vacuum tube liquid cooling system - This article describes an alternative to water as the cooling liquid for amateur radio vacuum tube power amplifiers. This cooling system is designed for adequate vacuum tube cooling, reasonable cost, and very low maintenance. By K8CU