Difference between revisions of "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.
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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.
 
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Schematics and Block Diagrams For Themis and Khronos:
 
Schematics and Block Diagrams For Themis and Khronos:
 
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THEMIS:
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'''THEMIS''':
  
[http://www.WestmorelandEngineering.com/OpenHPSDR/Projects/Themis/THEMIS_For_Review_012814_Rev0A.PDF THEMIS Design For Review]
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[http://www.WestmorelandEngineering.com/OpenHPSDR/Projects/Themis/THEMIS_For_Review_012814_Rev0A.PDF '''THEMIS''' Design For Review]
  
[http://www.WestmorelandEngineering.com/OpenHPSDR/Projects/Themis/THEMIS_simplified_block_diagram.PDF THEMIS Simplified Block Diagram]
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[http://www.WestmorelandEngineering.com/OpenHPSDR/Projects/Themis/THEMIS_simplified_block_diagram.PDF '''THEMIS''' Simplified Block Diagram]
  
KHRONOS (preliminary schematic release):
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'''KHRONOS''' (preliminary schematic release):
  
[http://www.WestmorelandEngineering.com/OpenHPSDR/Projects/Khronos/KHRONOS_Prelim_For_Review_051014_Rev0A.PDF KHRONOS (Preliminary) Design For Review]
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[http://www.WestmorelandEngineering.com/OpenHPSDR/Projects/Khronos/KHRONOS_Prelim_For_Review_051014_Rev0A.PDF '''KHRONOS''' (Preliminary) Design For Review]
  
[http://www.WestmorelandEngineering.com/OpenHPSDR/Projects/Khronos/KHRONOS_simplified_block_diagram.PDF KHRONOS Simplified Block Diagram]
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[http://www.WestmorelandEngineering.com/OpenHPSDR/Projects/Khronos/KHRONOS_simplified_block_diagram.PDF '''KHRONOS''' Simplified Block Diagram]
  
 
Current Board Screen shots (these will be available at various layout/development stages):
 
Current Board Screen shots (these will be available at various layout/development stages):
  
[http://www.WestmorelandEngineering.com/OpenHPSDR/Projects/Themis/THEMIS_snap_layout.JPG THEMIS Layout Snap Shot]
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[http://www.WestmorelandEngineering.com/OpenHPSDR/Projects/Themis/THEMIS_snap_layout.JPG '''THEMIS''' Layout Snap Shot]
  
[http://www.WestmorelandEngineering.com/OpenHPSDR/Projects/Khronos/KHRONOS_snap_layout.JPG KHRONOS Layout Snap Shot]
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[http://www.WestmorelandEngineering.com/OpenHPSDR/Projects/Khronos/KHRONOS_snap_layout.JPG '''KHRONOS''' Layout Snap Shot]
 
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Here's some reference material to review regarding the Jackson Labs GPSTCXO 'low cost' device:
 
Here's some reference material to review regarding the Jackson Labs GPSTCXO 'low cost' device:

Revision as of 15:31, 10 May 2014

'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

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):

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.