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Home
New and Updated Stuff
- KO4BB.com now supports https!
- Long Range Communication With EByte E32 module and Arduino
- Migrating to a new host
- A Salt Water Chlorination System Monitor
- An XBee lookalike, RFM69 based radio module
- Adding RF communication to a WeMos D1 Arduino board with an RFM69 radio
- The M5Stamp-PICO IoT board
- Experiments with a 2.8" TFT LCDS for the Arduino
- A quick multi-time zone display for the browser, using Javascript. Select you own time zones!
- A simple pulse extender for GPS timing receivers
- Homebrew: Microwave Doppler Sensor module
- Product Review: Solder Paste Dispenser
- GPS Monitor Kit for the Trimble Thunderbolt GPSDO (with matching Android app) Now discontinued unless new demand is created.
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- Updated version of the Tektronix Screen Dump utility TDS2xxDump. Now supports more instruments and Prologix GPIB adapters.
- Enable acquisition memory options on the TDS754D
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- Experimentation with the RCWL-0516 microwave doppler sensor module (with schematic)
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- Using the JDY-30/JDY-31 Bluetooth Modules (with datasheet)
- How to prevent FLASH memory failure on Raspberry Pi and other FLASH based small form factor Linux computers
A bare bone STM32 BluePill project. Now you can put to good use these cheap ARM microcontroller boards!
- Information about GPS week rollover of July 30, 2017 and Thunderbolt Monitor
- WR-75 to SMA transition for sale
- Visit Bruce's new and updated Precision Timing pages
- Check my new Raspberry Pi pages, a work in progress, more are coming!
- Thunderbolt Simulator
- NMEA Sentence Parser
Content:
Here you can find a fairly large Test Equipment and Ham Radio Manuals repository, covering (mostly) obsolete test equipment such as HP/Agilent/Keysight, Tektronix, Fluke and many others.
You can also find a number of documents and projects related to Precision Timing, such as the Trimble Thunderbolt Monitor kit project.
The Timing section includes links to Bruce Griffiths' Precision Timing pages that are chock full of information and designs for the precision timing enthusiast.
The Ham Radio pages cover a number of topics, particularly the Tower Project that was featured in QST, the publication of the ARRL.
The Test Equipment pages include information on GPIB control and answers many common questions
The Electronics pages contains useful information and projects, including a tutorial in Electronic Circuit Design, software tools, Computer Audio tips and tools and a number of projects you can build.
The Wiki includes externally provided content like selections from the mailing lists I frequent and more details about selected projects.
Use the menu at the top to navigate the site.
Thank you for your visit!