John Ambrose
John Ambrose
Areas of interest of the author: Measurement Oscillators Analogue Design Audio Radio Digital
Co-authors: Van Vane
Publications on RadioLocman by the author John Ambrose:
- Build A High-Frequency Portable Spectrum Analyzer Using Two Filter ICsDesigners sometimes need to analyze the spectrum of a modulated carrier. Although they can do this...Jun 29, 2021
- Generate swept sine/cosine waveforms with two filtersDemodulators, directional circuits, and other electronics applications often need two sine waves...Oct 25, 2018
- Notch filter autotunes for audio applicationsJohn Ambrose EDN Tracking notch filters find use in harmonic-distortion analyzers; they also...Sep 14, 2017
- Build an adjustable high-frequency notch filterAlthough you can obtain universal, resistor-programmable switched-capacitor filters that are...Jun 9, 2017
- Build Your Own RC-Programmable Wide-Bandwidth Bandpass FilterJohn Ambrose Van VaneMany communications and sensor applications require a bandpass filter with wide bandwidth. This...Apr 21, 2015
- Circuit Generates High-Frequency Sine/Cosine Waves From Square-Wave InputAlthough quite a few direct digital synthesis (DDS) ICs can generate high-frequency sine waves,...Oct 9, 2014