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G4RV Antenna - An 80 to 10 meters multibad wire antenna plan by Maidstone Amateur Radio Society

W3DZZ MkII Antenna - A W3DZZ project by Maidstone Amateur Radio Society

G8RV Antenna - Antenna system resonant on 28.9, 24.9 21 and 1.8 Mhz by midstone amateur radio society

W7GDY TriCity Amatuer Radio Association - Emergency communication is the cornerstone of this organization with the development of operating teams to provide volunteer backup emergency communications support to the cities of Goodyear, Avondale, Litchfield Park and surrounding areas

W4BOC Alford Memorial Radio Club - Based in Stone Mountain Georgia

Blackstone Vally Amateur Radio Club Priority listing - Amateur Radio in the Blackstone Valley area

K8DF Stonewall Jackson Amateur Radio Association - Stonewall Jackson Amateur Radio Association Clarksburg, WV

NorComm Data Signaling - Sequential Decoders, DTMF, voice encryption, notch filters and band pass filters, single tone burst decoders.

MB7USK - APRS Internet Gateway in Folkestone, Kent UK

Amsat Oscar-10 - W4SM's AO-10 Unofficial web page

MFSK16 - An MFSKMulti-Frequency Shift keying DX Mode. A new weak signal DX mode for Radio Amateurs, employing M-ary FSK, phase continous tones and convolutional coded FEC.

IC-7000 Mods - IC-7000 TV Enable Reception, ) TVRO & MARS (US version), TVRO & MARS/CAP Mods by N5AC, IC-7000 RX range expand mod, IC-7000 Tone noise, How to fix the IC-7000 audio noise

Sidetone Adjustment for the TS850S - Front Panel Sidetone Adjustment for the TS850S by Tree N6TR/7

Pacofoc Research - Manufacturer of Repeater Controllers, Repeater Tone Panels and Telephone Interconnect.

Sunstone PCB Design Software - Sunstone.com PCB123 PCB download software. Review Sunstone quality pcb design software. Free PCB software download for all of your business needs.

THROB 2.5x3.3 - Freeware Experimental-Program 9-Tone-MFSK with sound card

Test Tone Generator - This Test Tone Generator (TTG) turns your PC into a function generator and enables you to demonstrate, test and tune sound systems, create sound effects and a whole range of other uses to suit your needs. It can also be used for educational purposes.

Tone Sound Frequency Sweep Generator - Generating of up to eight independent oscillatory processes per each channel with separate frequency, initial phase and amplitude controls.

SigJenny - SigJenny turns your PC into a flexible and powerful audio signal generator for free. It can create multiple waveforms, sweep, fire single or repeating tone bursts. You can save your sound as a wav file, display a frequency response, use SigJenny a bit like an oscilloscope, and do a very good impression of a police car!

Double Tone IQ-Generator - Easy to use double tone IQ-generator for testing direct conversion SSB-transmitters based on phasemethod etc.

WSCGen - Signal generator using the PC soundcard to output continuous tone, CW, SSTV, AO-40 telemetry, and PSK31 test signals with variable AWGN. The program will also output to a RIFF .wav file by AE4JY

Roger Beep - This article describes a simple device to generate Roger Beep tones.

CTCSS DTMF Tone Decoder and Encoder - CTCSS Decoder and Encoder, DTMF Decoder projects by OE3MZC

A PIC16F84 based CW Decoder - CW decoder project that automatically adapts itself to the CW rate and may be employed for learning purpose substituting the traditional tone generator and offering the capability of displaying the keyed code.

CW keyer - The PIC-MORSE is an electronic iambic keyer, integrating a generator of Morse code and a sidetone. It is built with a microcontroller PIC16C711. In French