GPSTCXO

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'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:

THEMIS Design For Review

THEMIS Simplified Block Diagram

NEW THEMIS 3D PDF Of Layout (requires 3D plugin)

NEW THEMIS Pic of current Themis board with options.

NEW THEMIS (Candid shot) Testing Themis in OpenHPSDR Chassis - PowerSDR running.

KHRONOS (preliminary schematic release):

KHRONOS (Preliminary) Design For Review

KHRONOS Simplified Block Diagram

NEW KHRONOS 3D PDF of Layout

Current Board Screen shots (these will be available at various layout/development stages):

THEMIS Layout Snap Shot

KHRONOS Layout Snap Shot


Here's some reference material to review regarding the Jackson Labs GPSTCXO 'low cost' device:


GPSTCXO Data Sheet Brief

GPSTCXO Eval Board UG

GPSTCXO Mechanical Dimensions

Excalibur's TCXO Data Sheet

Some File Updates:

PDF Schematic of EVB

GPSTCXO Eval Board Gerbers

GPSTCXO Eval Board Mechanical Dimensions


Image of Jackson Labs EVB:

GPSTCXO Jackson Labs EVB Image


Block Diagram of KHRONOS Architecture:

KHRONOS Block Diagram


Possible Gibraltar Alternative:

MTRON m9107 Datasheet


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.