very simple watt meter

IK1ZYW Vertical antenna - A vertical antenna for stationary-mobile HF-VHF operation. It works on 2-6-10 and 12 meters band.

Swiss Quad for 10 and 6 meters  ^pop - Based on HB9CV, F6ITV decribes how build a swiss quand antenna for 28 and 50 Mhz.

W3FF Portable Dipole  ^pop - This is the antenna w3ff designed for his walking portable station. It is a dipole constructed out of the plastic plumbing pipe CPVC. There are telescoping whips at the ends of each side of the dipole, and these whips are adjusted to bring the antenna into resonance on each of five HF Bands 10, 12, 15, 17, and 20 Meters

M3FVB 2 meter quad - Photos and building procedure for a home brew 2 elements Quad for 144 mhz.

80M Vertical antenna with capacitance hat  ^pop - Simple wire antenna cheap to make, using readily available materials, Low angle radiation, with rejection of high angle signals Wide bandwidth, with resonance at the 80M DX window (3.790-3.800 MHz); and Maximum height is 40 feet

SWR: Maximum allowable VSWR - VSWR (voltage-standing-wave-ratio) represents the degree with which an antenna is "matched" to the system impedance. Most modern antennas do not require any tuning for optimum performance. VSWR is one of the easiest parameters to measure and VSWR meters are becoming very popular antenna installation tools

Setting the SWR of Your Antenna - SWR (standing wave ratio), is a measurement of how efficiently your antenna system will radiate the power available from your radio. In simple terms, your radio would like to radiate all of its power, but can only do so if the other components cooperate

Transmission Lines - Articles on SWR measurements and feed lines tuning.

SWR Calculator - BesserNet Reflectometer is a fun SWR calculator and simulator Java applet

Antennas for 136kHz - A very long and exaustive documentation on building antennas for 136 khz. Includes links to antenna design software for longwave

Modified Buddipole for 40 to 10 Meters - This is modified version of buddipole antenna, using vertical wires instead of telescopic ends by ks7j

Add 60 meters to butternut vertical antenna - The Butternut vertical is a great antenna in that it covers all HF bands from 160- though 10-meters (or 160-30 meters for the HF-2V) except 60-meters. This article describes three methods to add 60 meters to your Butternut vertical without losing any other bands.

IK-STIC 2 vertical multiband antenna - The IK-STIC 2 is a vertical, all band, antenna that is over 25 feet tall yet weighs under 5 pounds. Based on a telescopic pipe or a fiberglass fishing pole, using a tuner it can easily cover the amateur radio HF bands from 40 - 10 Meters

Six meter beacons - Beacons transmitting on 50Mhz band

Zanesville Amateur Radio Club Priority listing - The Zanesville Amateur Radio Club (ZARC) is an association for the purpose of providing amateur radio communications in times of emergency: installing, maintaining, and operating a 2-meter repeater and club radio shack, and promoting amateur radio in general.

11metertraffic.com Priority listing - BAnner exchange system offer quality traffic at for your 11 meter site

Counter Surveillance - Field Strength Meter - The zap checker is a counter surveillance, bug detector, field strength meter

Telewave - Telewave's innovative engineering produces the industry's toughest antenna systems. Yagi, Fiberglass Collinear, and Dipole models are available from 66-2500 MHz. Wattmeters, test equipment,rf power meters, duplexers, filters and cavities, transmitters combiners

W8JI History of 160 Meters - Includes W1BB Stew Perry letters, and a sample QSL cards of dated 1963

Maritime stations on 150 meters band - 2 MHz Medium Frequency Maritime Stations in PDF format

VectorFox - VectorFox is a software born to incorporate a PC into the fox hunting environment. VectorFox is able to take inputs from up to 5 sources, such as a 2m beam, a 2m signal meter, a TDOA, etc, and display the results on the screen. VectorFox also accepts Agrelo inputs. From these results the operator can choose which indication is best and have a line drawn on the map in the direction of the signal.

Isotron antenna manulas - From this page you can download the following manuals, in Adobe Acrobat format .pdf, 40 Meter Isotron, 80 Meter Isotron

APRS-Beacon - The purpose of the APRS-Beacon is to provide simple APRS-compatible position beacons for up to three Objects. It is designed to 'stand alone' and does not monitor other traffic on the frequency. It can use a single-port TNC (in 'native' mode), a single- or dual-port TNC in Kiss mode or the AGW Packet Engine in order to transmit on up to four radio ports.(When running with AGWPE, APRS-Beacon will also work with Windows 2000)

Assessing unknown Ferrite Toroids - Ok so you have had a good day at the Rally and you have come back with a carrier bag full of ferrite toroids that "just might be useful for something". How do you find out what they are? Very few seem to be stamped with any indication of their properties, and some are 'painted' garish colours which presumably means something.

A 80/40m Direct Conversion HF Receiver with DDS VFO - Juha (OH2NLT) and Matti (OH7SV) have designed JUMA-RX1, an award winning 80/40m direct conversion HF receiver with highly accurate direct digital synthesis VFO. The receiver is very compact, because it constructed using surface mount components. No coils need to be wound to construct this receiver!