40m transmitter circuit

Slim-Jim 2m Antenna  ^pop - Drawing and assembling instruciton for Slim-Jim 2m Antenna

Simple active antenna - This circuit shows an active antenna that can be used for AM, FM, and shortwave

80 & 40 Meters vertical antenna  ^pop - May work on 160 meters too, by EI7BA

Antique Radio Schematics  ^updated - Specializes in antique radio schematics, circuit diagrams and service data for vintage tube radios. Carries information for American, Canadian and European antique radios.

UN DX Contest 2010 - The Kazakhstan Federation of Radio sport and Radio amateur (KFRR) and Ministry of Tourism and Sport of the Republic of Kazakhstan are announcing the First UN DX CONTEST All world-wide radio amateurs having the amateur radio licence are invited to participation. Contest period: 12.00 UTC 22 May – 12.00 UTC 23 May 2010 Bands: 160m, 80m, 40m, 20m, 15m, 10m. Modes: CW and SSB

Worked EI Counties Award - Issued by the Irish Radio Transmitters Society

ARRL: US frequencies allocation - Transmitter power limits and frequencies allocation by band

QRZ.RU Russian HamRadio Server - Free Russian hamradio server special for radiofanats from CIS. Search engine on callsigns, electronic circuits and hamradio programs in www powered with knowledge base.

W3FF Antennas Buddipole - The Buddipole is a hi-tech, take-apart dipole designed for HF portable operations. The antenna uses a multi-band adjustable coil for all bands 40m - 2m.

Symek - Packet-Radio-Controller for amateur radio, CB and commercial applications. Data radios (transceivers), receivers and transmitters for high speed data communication Assemblies for satellite ground stations, special receivers and transmitters.

Beacon Transmitter - Beacon transmitters for sale

ATV De ik1hgi - Projects and design atv de ik1hgi Progetti, circuits, master, fotos in Italian

ARDF Projects by WB2HOL - Antennas, attenuators, Fox Timers and Controllers and Fox Transmitters

Transmitter hunting - Locating or finding radio transmission sources or hidden radio transmitters is known as transmitter hunting.

Morse Tutor - Morse Tutor is a DOS based program written in C++. It can be used to practice morse code. Various options are available. Morse tutor with Complete Source Code and Binary is available for Download (32KB).

HAMIC - The Ham Intelligent Calculator - HAMIC, is a program designed to simplify a number of calculations commonly used by HAMs. It is designed for the HAM radio hobbyist, but may be useful to others as well. HAMIC has a simple to use, but powerful graphical interface that allows solving simple circuits such as resistors in series or parallel, or more complex circuits such as L networks or T networks. As well, other calculations such as SWR and reactance conversions are supported. Windows shareware.

Electronic symbols - Analog digital symbols, identification of components, units and conversi¥n tables for electronics circuits design

Radio QRP - The Art of Low Power - QRP is The Art of Low Power Radio where the challenge is to operate and/or build AM radio transmitters usinga bare minimum of components, money and construction skill.

7 MHz SSB Transceiver  ^pop - Circuit diagram and discription of 7 MHz Ham Radio SSB Transceiver. Transceiver using two MC1496, 4.43 MHz Ladder filter, LM386, LM324 and IRF840 in final.

Ham Radio Circuits  ^pop - Circuits of SSB Transceiver, AM DSB Transmitter, Antennas, BFO, VFO, 807, FM Mike, Crystal filter and more.

HSCW transmit interface box - Versatile transmit interface circuit

ACWS: Automatic CW Sender by iz7ath - Simple circuit, with a simple push, transmit a memorized Cw messages

Homebrew resources for wireless enthusiasts - PDF resources containing information on low cost ssb,am,cw circuits, which are useful for beginners.

Amateur Radio Repeater Controller - The project requirement is to design the interface to the signal channel elements after the receiver and before the transmitter

Interface for MS_DSP - Minimal interface circuits for receiver and transmitter audio, also for PSK31