transmitter circuit

G3SEK's Amateur Radio Technical Notebook - A lot of good informations concerning antennas, filters, moonbounce, and circuitry data.

Hammond Museum of Rradio - Now home to over 1,000 radios and transmitters dating from the spark era up to.

Ireland - IRTS - Irish Radio Transmitters Society

Malaysia - MARTS - Malaysian Amateur Radio Transmitters' Society

New Zealand - NZART - New Zealand Association of Radio Transmitters

SuperCircuits - ATV accessories manufacturer

Piccon - PicCon is a PIC microcontroller based radio controller designed for hidden transmitter hunting

Terrasat Inc. - Manufacturer of Receiver and Transmitter for Digital Microwave radio and VSAT equipment

Almost all digital electronics - This site is dedicated to electronics hobbyists, engineers, and Radio Amateurs interested in circuit design, homebrew and kit projects.

Advanced Communication Sys - Repeaters, transmitters and receivers manufacturer for ham radio and commercial applications

Hi Pro - Repeaters, transmitters, receivers, small power Amps and Controllers

NOGA QRP club - Small, but growing, group of amateur radio enthusiasts, most of whom are within 90 miles of Atlanta, are interested in promoting the development of the branch of amateur radio known as QRP - building and operating low power transmitters, receivers and transceivers.

N6QAB Radio Direction Finding - N6QAB Radio Direction Finding Web Site, DF vehicles, transmitters, sniffers, dopplers, TH-D7A

Hidden Transmitter Hunting - Lots of information of hidding transmitters, building portable yagi antennas, s-meters, and much more

RDF projects - Antennas, attenuators, fox timers, controlers and transmitters

Shortwave radio transmitters in Zimbabwe - Shortwave radio transmitters in Zimbabwe.

Elise Software Corporation - Elise Software, OUTPUTMASTER, windows professional software for Printed circuit board, post processor, Gerbers, Drill files, ODB++, files generated fast and simply.

TrueTTY  ^updated Priority listing - Program for amateur radio digital communications via a sound card. Supported modes are RTTY (Baudot code), ASCII (7 or 8 bits), PSK31 (BPSK and QPSK) and AMTOR-FEC (SITOR-B, NAVTEX). SELFEC SITOR decoding is possible also. No additional hardware required, need only a sound card. Optionally you can use simple circuit fo PTT-control. Can cooperate with RZ4AG AAlog logger.

Radio Propagation & Diffraction Calculator  ^{updated  pop} - This is a radio frequency propagation calculator for the transmission path between an RF transmitter and a receiver.

432 MHz EME PreAmplifier - 432 MHz EME low noise amplifier. Circuit, components and image by Christoph Petermann DF9CY

40 meter 100 watt Transmitter - 40 meter transmitter by K9GDT

The Islander HF RTX - A practical solution by Cuban radio amateurs, hybrid circuit with mostly defunct TV set parts.

SM0VPO Homebrew pages  ^pop - Harry Lythall SM0VPO/G4VVJ homebrew web site, contains several projects, antenna notes and plans, receivers and transmitters plans, regularly updated.

Defpom CB and HAM radio mods  ^{updated  pop} - Circuit diagrams, CB and HAM mods, alignments, data sheets and pinouts, a massive site with over 600 pages of free info

50 MHz Transverter idea - Complete 144/50 MHz transverter with GaAs Fet LNA and 400 mW out. No printed circuit board. Schematics and images by Christoph Petermann DF9CY