pink noise generator

Low-noise receiving antenna for 80 and 160 m - How you can make a low-cost, low-noise, 21-foot-square receiving antenna that boost your DX ability.

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

50 MHz Noise Canceling Receiver Front End - Reducing noise on six meter band

Ingnition notes on RFI by K0BG - Removing noise caused by ignition and injection systems

Alpha 9500 blower problem - How to reduce noise on Alpha 9500 amplifier fan.

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

Low Noise Microwave Amplifier Design Tutorial Series - This series will follow to completion the full Low Noise Microwave Amplifier design, development and prototyping.

Grounding and Receiver Noise - An interesting article on grounding and receiver noise

Simple RF Generator - A simple RF Generator project by YO5HHP

Noise cancellation on 2m using 2 antennas - Article on Phase-cancellation of noise on 2m band

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.