 | The ATNF Electronics Group AT Distributed Clock |  |
AT Distributed Clock Mk VI
The AT Distributed Clock (ATDC) has, in various forms, been the primary means of precision timekeeping for ATNF instrumentation. The clock accepts a 5MHz reference signal (typically from an atomic standard) and counts cycles to maintain precise time, which is then available as BAT (Binary Atomic Time) – a 1MHz time-frame distributed over twisted-pair. The ATDC also produces a 1pps pulse (TTL).
The Mk VI clock was developed by Evan Davis of the AT Electronics Group, succeeding the Mk IV version designed by Andrew Hunt, and earlier version designed by Geoff Crapps.
Documentation
- Software. (Documentation available in pdf. )
- Installation Guide (in pdf)
- Hardware. (Documentation available in pdf. )
- Simple network Control/Display program for VMS and UNIX. (Documentation available in pdf. )
Software
Software These FD image files will only work if you Save files to disk, rather than opening them.
Depending on your web browser, you may need to use a right hand mouse click to be able to activate the “save as” dialog box.
- How to make FD from image files (image_fdd_HOWTO.txt)
- ATDC Software – FD image atdc_fdd_image.abs – no longer available
- ATDC Software – Current Release, binary image atdc_release.abs – no longer available
This page was created by Evan Davis.