sound generator

Worldwide Power Products - New and Used Industrial Generators, specialize in power generation equipment including over 100 new and used engines and generator sets for the industrial, marine, and petroleum industries

AE9RB - Peaberry SDR - The Peaberry SDR is the first and only do-it-yourself transceiver that doesn't require adding sound cards to your computer.

A PC as VLF receiver - Using a PC with soundcard as a VLF receiver, how to use your PC as a receiver for narrow-band signals in the VLF radio spectrum by DL4YHF

Waavebox - MacOSX real-time precision signal / waveform generator. Uses native Mac sound Out capabilities.

Soundcard Oscilloscope - PC based Soundcard Oscilloscope software that receives its data from the Soundcard with 44.1kHz and 16 Bit resolution.

Yaesu DSP Settings and Pin Connections - Yaesu DSP audio settings for Heil Sound headphones

Elecraft DSP audio settings - DSP Settings and Mic Connections for Elecraft K3

Icom DSP Settings and Pin Connections - ICOM audio DSP settings and pin connections for heil sound headphones

Kenwood DSP Settings and pin connections - Kenwood radios audio DSP settings for Heil Sound headphones

Simple RF Generator - A simple RF Generator project by YO5HHP

Signalink USB Interface - Setup notes - Hints and Tips in using the Tigertronics SignalinkUSB External USB Sound Card and Interface

Sound Card Interface with Tone Keyer - An improved version of the audio interface commonly used to connect a computer soundcard to a transceiver\'s receive and transmit audio circuits

Oscilloscope for the Blind - The vOICe Learning Edition can be used in combination with a regular oscilloscope, allowing blind users to hear any oscilloscope trace.

Simple RF Measurement Probe - This probe is useful for any low level RF work, and simply connects to your multimeter.

Germanium Noise Generator - This generator requires 100volts supply at 5mA. A 0 -5 mA meter inserted at J1 measures the crystal current.

A DIY Square Wave Signal Generator - This circuit is very simple and has a fantastic range of potential uses.

ZL2PD HF RF Signal Generator - This circuit came out of some work done for two antenna analysers

SA5BKE Simple signal generator - A simple DIY signal generator based on NorCal QRP club kit

Analog HF Antenna Analyser - A simple antenna analyser for the HF spectrum with a built-in signal generator with 3-digit LED frequency display.