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A magnetic loop antenna for HF  ^pop - Able to cover all frequencies between 3.5 and about 10 MHz, the loop described here is directional, does not require a radial system, and stands just 1.8 metres tall. Most parts needed can be purchased at a hardware shop. The antenna can be put together in an afternoon and requires only hand tools to assemble. It should cost less than sixty dollars to build. by Peter Parker VK3YE ex VK1PK

AM Antennas  ^pop - The ultimate AM loop antenna article. It is the only article that includes the calculations and detailed plans

GM3MXN Magnetic Loop Antenna - This article describes a loop usable from 7 - 21 mHz, using half inch copper tube 3 feet in circumference

Cubical Quad Antenna Design  ^pop - By N6VNG, can be used to determine the element lengths and the gamma match values for different frequencies, includes link to excel files with formulas to dimension your quad antenna.

1270Mhz Yagi Antenna - Build your own antenna for the 23cm band ( 1250Mhz - 1280Mc ) using some aluminium and this simple design.

2LD751 Andy Priority listing - Webpage of Andy, 2LD751. Includes links to some good 11 meter related stuff. Updated often.

ARRL DXCC Country list - Complete DXCC list in a plain text file updated by ARRL

MM0BQM Priority listing - MM0BQM Homepage, lots of info on most soundcard data modes plus received SSTV picture gallery.

Broadcast microwave services - Designs and manufactures a comprehensive line of microwave communications equipment for television broadcast, video, telemetry, and electronic surveillance applications.

Bird Electronic - Design and manufacture of components, instruments and systems for RF power measurement.

Hot topics and tips - Selections of past Moon-net discussions, with interesting topics

Ham Radio HF Digital modes - A complete overview of modern digital HF radio operating modes: PACTOR AMTOR GTOR CLOVER RTTY PSK31 HELLSCHREIBER PACKET MT63 MFSK16 THROB.

MaxPak - The Midlands AX25 user group. Formed in 1983, the group is now one of the oldest Packet Radio groups in the UK.

SSTV Transmission Modes - General characteristics of SSTV transmission mode

E-layer & Sporadic-E - Two modes of propagation at 50MHz E-layer & Sporadic-E by Ken G4IGO

PolarPlot - Freeware antenna software that lets you see what the polar diagram of your rotatable beam actually looks like where it is operating. With PolarPlot you can measure the polar diagram of the antenna and check for abnormalities - compare plots taken before and after changes to the design or location - check the -3dB beamwidth - look at the front to back ratio - see the size and position of the sidelobes.

QARTest - Italian only contest logging software, designed for the ARI 40-80 contest.

Spectran - Program designed to do spectral analysis and real-time audio filtering on reception of audio signals for EME, VLF, SETI applications. Offer support for MTHELL, QRSS, DFCW, NDB, WSJT by I2PHD

MixW V3  ^{updated  pop} Priority listing - PSK31, RTTY, SSTV, MFSK, MT63 Olivia Hellschreiber SSTV and other modes, Log, DXCluster, telnet access, log backup, Rotor, CAT and whatever you dream in a single program

Int. Morse Code program information - This program is designed to help the beginner learn to receive and send the International Morse Code.

NcWinPTC - NcWinPtc is a terminal program for the SCS controllers PK232 and PK900(with all files). Includes also many other programs for pactor devices such us Ptc II SCS, Ptcplus SCS, Z80 SCS.

Amplifier Simulation Program - ASP 4.0 - Design weak signal GaAs FET or bipolar PreAmps. Automatically designs for optimum gain, NF, VSWR or all.

KM5KG network designer - Windows98 Program for RF Design

KI5YN QLF Filter - The QLF filter is a microprocessor based interface designed to go between a standard Morse code key and a radio transmitter

Sound card interfacing  ^pop - PC sound card interfacing for RTTY SSTV PSK31, collection of interface connections to choose from when having a desire to use the Soundboard