Clik here to view.
ICS501 Simple Frequency Multiplier
Today I made a high frequency multiplier using a single component: the ICS501 PLL clock multiplier IC. This chip provides 2x, 5x, 8x (and more) clock multiplication using an internal phased-lock loop...
View ArticleClik here to view.
VHF Frequency Counter with PC Interface
Projects I build often involve frequency synthesis, and one of the most useful tools to have around is a good frequency counter. Being a budding programmer and data analysis guru, I love the idea of...
View ArticleClik here to view.
Raspberry Pi RF Frequency Counter
I build a lot of RF circuits, and often it’s convenient to measure and log frequency with a computer. Previously I’ve built standalone frequency counters, frequency counters with a PC interface, and...
View ArticleClik here to view.
Breadboard Line Driver Module
Sometimes I rapidly want to amplify a signal, but building amplifiers, buffers, and line drivers can be a hassle, especially on a breadboard! It’s important to know how to carefully design build tuned...
View ArticleClik here to view.
ICS501 Simple Frequency Multiplier
Today I made a high frequency multiplier using a single component: the ICS501 PLL clock multiplier IC. This chip provides 2x, 5x, 8x (and more) clock multiplication using an internal phased-lock loop...
View ArticleClik here to view.
VHF Frequency Counter with PC Interface
Projects I build often involve frequency synthesis, and one of the most useful tools to have around is a good frequency counter. Being a budding programmer and data analysis guru, I love the idea of...
View ArticleClik here to view.
Raspberry Pi RF Frequency Counter
I build a lot of RF circuits, and often it’s convenient to measure and log frequency with a computer. Previously I’ve built standalone frequency counters, frequency counters with a PC interface, and...
View ArticleClik here to view.
Precision Temperature Measurement
In an effort to resume previous work [A, B, C, D] on developing a crystal oven for radio frequency transmitter / receiver stabilization purposes, the first step for me was to create a device to...
View ArticleClik here to view.
Crystal Oven Testing
To maintain high frequency stability, RF oscillator circuits are sometimes “ovenized” where their temperature is raised slightly above ambient room temperature and held precisely at one temperature....
View ArticleClik here to view.
Adding USB to a Cheap Frequency Counter (Again)
Today I rigineered my frequency counter to output frequency to a computer via a USB interface. You might remember that I did this exact same thing two years ago, but unfortunately I fell victim to...
View ArticleClik here to view.
Calculate QRSS Transmission Time with Python
How long does a particular bit of Morse code take to transmit at a certain speed? This is a simple question, but when sitting down trying to design schemes for 10-minute-window QRSS, it doesn’t always...
View ArticleClik here to view.
Realtime Audio Visualization in Python
Python’s “batteries included” nature makes it easy to interact with just about anything… except speakers and a microphone! As of this moment, there still are not standard libraries which which allow...
View Article