system analyzer

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

160 meter sloper antenna - The 160-meter sloper system at K3LR

CTJ Contest Software - By 9H1EL, supports RSGB 21-28, BERU, IOTA contests, FOC marathon and IARU 50MHz trophy, Control of FT1000MP, all Kenwood and ICOM Radios which have CAT system.

K2 Logger - K2 logging system by WB2QAP, logs ARCI sponsored contests and others with same point system

WinLink 2000 - WinLink 2000 employs Stations World-wide to provide an HF/VHF/UHF digital radio Interface into the Internet Email system for the mobile radio operator. Features include binary and graphic file attachments, APRS position reporting and over 340 downloadable WX products. The mode used is Pactor I and Pactor II.

RT Systems - Online shopping, Programming Software, Icom, Yeasu, Kenwood, Istron, HyGain, MFJ, cat cables interfaces and other radio control cables.

SCS PTC Priority listing - Special communications systems, the creators of pactor, TNC using DSP protocols

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

Hellschreiber beacon project - This web site describes a low power beacon system to be used for propagation and performance tests on the lower bands. The beacon offers CW (on-off keyed) modes and FSK modes; the traditional Morse ID mode, and Feld-Hell, another highly noise immune CW mode.

N1YHR - packet radio station - Cape Cod area packet radio system, Echolink Node #276022

VK3ZPF Foxhunting site - Fox hunting site with details of a PC based DF system

KP3AV Repeater Systems - Welcome to Puerto Rico Repeater Home page, Live Repeaters and more Amateur Radio information.

TV DX pages - General and technical informations, colour and broadcasting systems by country, frequencies

Andrews Communications Systems - Australian dealer, HF linear amplifiers, power supplies, baluns, HF UHF yagis and verticals including multiband HF verticals.

MacAPRS - Macintosh automatic position reporting system, developed by Bob Bruninga, WB4APR, to track boats and vehicles using GPS and packet radio. MacAPRS was written by Keith Sproul, WU2Z and Mark Sproul, KB2ICI

BeaconClock - Real-time, schedule of the transmitting times, frequencies, short-path and long-path beam headings for each beacon from your QTH. BeaconClock is for Windows 9x/NT/2k systems.

AirMail - AirMail is a HF radio mail program for sending and receiving messages via Pactor, either via the ham radio system or participating marine or commercial services

Analyzer2000 - Fast, high resolution time-frequency analyzer with FFT display for time and frequency variant signals.

Frequency Manager - Database system with 60000 frequencies, powerfull 3D MUF/LUF-propagtion software and full copntrol of several receivers

K2PMC Logging System Priority listing - Easy to use flexible system with many features (e.g. multiple logs, file export, print etc.)

WinConvers - Convers is a chat system (similar to IRC) operating using internet TCP/IP protocols on amateur packet radio and the internet.

Satsoft - Satellite antenna design and systems engineering software for windows

MDS Spectrum Analyzer - Software for radiomonitoring, radio spectrum analysis.

Zelscope  ^pop - Zelscope is a Windows software that converts your PC into a dual-trace storage oscilloscope and spectrum analyzer. It uses your computer's sound card as analog-to-digital converter, presenting a real-time waveform or spectrum of the signal - which can be music, speech, or output from an electronic circuit.

Grounding Systems for Hams - Grounding Systems for Amateur Radio Stations, Safety grounds vs. radio frequency (RF) grounds, the practical station ground