'GPSTCXO' Project name is KHRONOS and for the HPSDR GPSDO - the project name is THEMIS. - We would like to see what the interest level is for a GPSTCXO based timing/frequency reference for HPSDR. Suggestions and discussions are welcome.
Schematics and Block Diagrams For Themis and Khronos:
THEMIS Simplified Block Diagram
NEW THEMIS 3D PDF Of Layout (requires 3D plugin)
NEW THEMIS Pic of current Themis board with options.
NEW THEMIS Testing Themis in OpenHPSDR Chassis - PowerSDR running.
KHRONOS (preliminary schematic release):
KHRONOS (Preliminary) Design For Review
KHRONOS Simplified Block Diagram
Current Board Screen shots (these will be available at various layout/development stages):
Here's some reference material to review regarding the Jackson Labs GPSTCXO 'low cost' device:
Some File Updates:
GPSTCXO Eval Board Mechanical Dimensions
Image of Jackson Labs EVB:
GPSTCXO Jackson Labs EVB Image
Block Diagram of KHRONOS Architecture:
Possible Gibraltar Alternative:
Some good background material and reference papers:
10 MHz OCXO Clock for the hpSDR-Transceiver - By Hans Hartfuss, DL2MDQ and Juergen Sachtleben, DD6UJS
Surplus 10 MHz Rubidium Frequency Standard - By Hans Hartfuss, DL2MDQ and Juergen Sachtleben, DD6UJS
An alternative design:
10 MHz Simple GPSDO - By James Miller G3RUH
Note - all files pertaining to the Jackson Labs GPSTCXO are provided courtesy of Jackson Labs of Los Gatos, California.