Reference tables
This is a collection of technical reference tables that I have been accumulating since I was a child. To a large extent, sites such as the Wikipedia have rather surpassed this particular project. However, this pre-dates the Wikipedia by a couple of decades. Started by scribbling this stuff down in the back of my school jotter in case it came in handy for something . Though obviously there have been a lot of updates since then. Besides, I rather like having all this stuff in one easy-to-find location. Seems we still have a few readers who quite like it too.
- General, including…
- Batteries – button cell equivalents
- Batteries – dry and alkaline international equivalents
- Batteries – lead acid equivalents
- Battery formulation IEC codes
- Commonly used computing terminology
- Domain name country suffixes
- Electromagnetic Spectrum
- Electronic component colour codes
- Form Factors for Media Storage
- ISO 216 (DIN 476) “A”, “B” & ISO 269 “C” series paper sizes
- International airport names and IATA codes
- International clothing size equivalents
- International METAR stations and ICAO codes
- International Morse Code
- Keyboard shortcuts
- Mathematical and other constants
- Metric conversion factors
- Metric non-SI units
- Metric prefixes
- Metric SI units
- Metric versus binary computing prefixes
- MP3-ID3v1 genre tags
- Original ARPA domain abbreviations
- Periodic Table
- Photography film and sensor speed equivalents
- Photography neutral density filter equivalents
- Roman numerals
- Sound pressure levels
- UK national parks
- UK potted history
- Unicode Codes
- Wind speeds
- Wire gauge equivalents
- World Population
- Radio Frequencies, including…
- Internet radio player URLs
- All radio frequencies (in our database)
- AM and FM radio frequencies for broadcast stations near Southampton, England
- Aircraft frequencies, EU and UK
- Bandplan overview
- Citizen’s Band frequencies, EU and UK
- Commonly used radio terminology
- GQRX personal bookmarks
- Long wave radio frequencies
- Medium wave radio frequencies
- PMR 446 frequencies
- Radio microphone frequencies
- VHF FM radio frequencies
- VHF Marine band channels
- Wavebands, amateur radio
- Wavebands, as parts of the electromagnetic spectrum
- Wavebands, broadcast
- Wavebands, numbered VHF and UHF
- Wavebands, shortwave broadcast (worldband)
- TV Sound Frequencies
- Analog TV sound is almost completely obsolete now. However, some folks may still find these useful, here.
- Reference tables Info Database Viewer applet (experimental)
All the data from our database tables plus a few extras in a handy web applet, here. - Sources of information
A partial list of where our data comes from, here.
I have tried very hard to ensure the accuracy of these tables. However, they are supplied as-is without any warranty, express or implied!