Synergy's Totally Accurate Clock Software
Distributed by:
SynergyLLC
PO Box 262250, San Diego, CA 92196
Telephone: (858) 566-0666, FAX: (858) 566-0768
General/Sales: oeminfo@synergy-gps.com
Tech Support: oemtech@synergy-gps.com
Download self-extacting installation file Install SynTac: Run or download the SynTac installation file by clicking the icon to the left.
Download the manual The Standard Documentation for SynTac is available in Adobe format. To download click on the button to the left.
Get Acrobat Reader The SynTac documentation file requires Adobe Acrobat reader.

Latest
Version:
2.7.22

Version 2.7.22, February 19, 2017

Corrections:

  • Minor corrections.

Latest
Version:
2.7.21

Version 2.7.21, October 07, 2016

Corrections:

  • Corrected an error introduced in the previous version that incorrectly identified the SSR-6Tr and SSR-6Tf receivers as SSR-M8T. This resulted in some inappropriate features being activated.

Version:
2.7.20

Version 2.7.20, October 02, 2016

Enhancements:

  • Decode the @@Cb almanac data message so it can be displayed and logged.
  • Enable dynamic mode settings for SSR (uBlox) receivers in both Motorola and UBX binary modes. Auto select based on navigation vs. position hold and self-survey.
  • Add satellite constellation selection for SSR-8 GNSS receivers. This allows selection of GPS, GLONASS, Galileo, Beidou, QZSS and/or SBAS (WAAS, etc.).
  • Add an auto-restart switch that restarts messages on an SSR series receiver if they stop unexpectedly as some SSR receivers do not restart their messages after a power interruption. This selection will also detect a long period of no valid results and issue a reset to the GPS module followed by a self-survey command to automatically start a receiver correctly when it has been moved far enough to get confused about its location.
  • For SSR (uBlox) series receivers when in UBX binary mode:
    - Reset the Date/Time/PPS alignment source to UTC on initialization.
    - Timing setup delays are now working.
    - Activate the 1 / 100 PPS selection mode when in UBX binary mode.
  • Separate the identification of the SSR-6Tf and SSR-6Tr receiver variants and add identification of SSR 'Plus" receivers to enable further feature conditioning.

Corrections:

  • Set the main screen to full size for initial installation.
  • Improved the firmware upload capability for the SSR Plus series receivers.
  • Set "Load reference location on program startup" in the "Set Reference Location" manual entry dialog to checked (true) on first use after installation.

Version:
2.7.19

Version 2.7.19,August 03, 2015

Enhancements:

  • Added the @@Wq "Change SW Part Number" command for the SSR receivers.

Version:
2.7.18

Version 2.7.18, July 14, 2015

Enhancements:

  • Added the @@Wp "Change HW Part Number" command for the SSR receivers.

Version:
2.7.17

Version 2.7.17, June 03, 2015

Enhancements:

  • For SSR-M8 series receivers be sure SBAS always is turned off for position hold mode and on for navigation mode.
  • Set the default baud rate for SSR series receiver's UBX modes to 57600 to match the new features in the V2.17 SSR firmware.
  • When switching SSR receiver modes ensure the @@Wb command is sent before changing the serial port characteristics.
  • Do not turn on @@Ek during initialization unless the receiver is an 8-channel model, not desired for 6 or 12 channel receivers.

Corrections:

  • Allow the Motorola protocol receivers in binary mode to be correctly identified at any baud rate selected in the serial port setting dialog.
  • Change the antenna status "Ant NV Short" (in Red) to "Ant No Pwr" (in Yellow).

Version:
2.7.16

Version 2.7.16, Apr 14, 2015

Enhancements:

  • Update the decoding of @@Ca and @@Fa self-test messages and include the SSR receivers in the decode list.
  • Update the decoding of @@Bk and @@Ek messages to show DOP values.
  • Update decoding of @@Ws.
  • Added the @@Wm "Change Model Number" command for the SSR receivers.
  • Accommodate free format model numbers when searching for the receiver type. The correct type will be identified even if it is surrounded by other characters in the model number field.
  • Corrected the detection of leap second pending status for newer model receivers using Motorola format @@Gj message instead of the older @@Bj message.

Corrections:

  • None.

Version:
2.7.15

Version 2.7.15, Mar 24, 2015

Enhancements:

  • None

Corrections:

  • Correct an indexing error in the manual command dialog window. This primarily impacts the SSR-6T series receivers but it also permits greater flexibility in managing these lists in the future.

Version:
2.7.14

Version 2.7.14, Mar 22, 2015

Enhancements:

  • Label all satellite types in the signal strength bars. This is especially useful in multi GNSS receivers such as the SSR-6T, SSR-M8F and SSR-M8T receivers.

Corrections:

  • Eliminate references to uBlox LEA6T where these references properly apply to all supported uBlox-based receivers, LEA-6T-0, LEA-6T-1, LEA-M8F and LEA-M8T.

Version:
2.7.13

Version 2.7.13, Mar 20, 2015

Enhancements:

  • Improve handling of firmware upload function for SSR receivers.
  • Add version number to the main frame title bar.

Corrections:

  • None

Version:
2.7.12

Version 2.7.12, Feb 16, 2015

Enhancements:

  • Add support for the new SSR-M8F and SSR-M8T receivers
  • Added @@Sx commands to support the new SSR-M8F and SSR-M8T receivers.
  • Add the ability to load new firmware into SSR modules that
    have the bootloader using external HEX files.
  • The Manual Command Dialog now remembers its last position on the
    screen.

Corrections:

  • Correct the processing of the @@Gj message so that leap second pending
    messages are only reported if the data is associated with a future event.
  • Fix @@Ba and @@Ea message display formats so they are like @@Ha.
  • Local time is not supported by uBlox modules so disable for SSR boards.
  • The seconds field in @@Ha, @@Ba, @@Ea, @@Hb now has a two digit
    integer field with leading zero.
  • Satellites with Eb/No = 0 are no longer displayed to avoid
    conflict between the @@Ba, @@Ea, @@Ha messages and the @@Bb message.
  • Implemented a mechanism so @@Ba, @@Ea and @@Ha can coexist without
    fighting over control of date elements and the and satellite screen.
  • Reworded the DOP status line for six and eight channel Motorola
    receivers to prevent oevrflow and mising data on the display.

Version:
2.7.11

Version 2.7.11, Aug 22, 2012

Enhancements:

  • Add the @@Hr command in the manual command dialog and add a decoder for the @@Hr message.
  • Allow any serial port settings for most modes, This is to support unusual hardware configurations like a modified HP Z3801A with odd parity, 7 data bits, 1 stop bit, no handshaking, and 19200 baud.
  • Update the self survey warning text message.

Corrections:

  • Fix the default value for the @@Ga command in the manual command dialog.
  • Fix the default value for the @@Gk command in the manual command dialog.
  • Changed the default receiver delay to 37 nsec to match the newer CNS Clock IIs.
  • Fixed the calculation of checksums for GPS binary log files.
  • Correct a time initialization error for the Synergy SSR_6T receiver.
  • Correct a rounding error that caused a one second error in the time on rare occasions with new Synergy SSR_6 series receivers.

Version:
2.7.10

Version 2.7.10, Feb 10, 2012

Enhancements:

  • Improve detection, initialization and mode switching for Synergy SSR-6T receivers.
  • Implemented a decoder for the @@Bd message.
  • Provide NMEA support for u-blox receivers in the Manual Command dialog window.
  • Implemented a checkbox in the GPS Receiver Serial Port Setting dialog box that will minimize the GPS receiver initialization. Use of this capability speed up the program startup and will preserve some special settings that may be in effect before start-up. However, the receiver mode (binary, NMEA, etc.) cannot be changed when this capability is activated.

Corrections:

  • Correct the management of Motorola and iLotus receivers when switching between binary and NMEA modes.
  • Reinitialize the manual command dialog entries when changing GPS receiver modes.
  • Set the @@Ci default parameter correctly in the manual command dialog.
  • Assure that the Set Reference Location selections work correctly for receivers in the Motorola binary mode. These receivers must be in navigation (3D) mode before the position data is loaded and then must be returned to the selected mode. This is now handled automatically.

Version:
2.7.9

Version 2.7.9, Mar 22, 2011

Enhancements:

  • Implement support for the i-Lotus TX Oncore receiver.
  • Provide support for the Synergy Systems SSR-6T receiver. This
    receiver has the same footprint as an M12 series Motorola/iLotus
    receiver. The SSR-6T has a uBlox LEA-6T receiver that operates in
    uBox NMEA or Binary mode. A version of this board has
    a processor that permits emulation of M12 series messages as well as
    other modes. Added the @@Wb message to switch the SSR-6T from M12
    to uBlox message mode.Added "@@Wc" to switch to the boot loader.
  • Added a new checkbox in the manual reference location dialog box
    titled "Load reference location on program startup." The default
    is off.
  • Enable Motorola Binary Rx Only mode.

Corrections:

  • Correct an error that impeded correct startup in Motorola Binary if
    the serial port is set to other than 9600 baud.
  • Corrected the order of fields in the @@Ha raw data output. Added
    reserved fields for completeness.
  • Make Vehicle ID field visible at the end of the @@Ha decoded message
    even if blank by adding quotes
  • Changed the sawtooth correction message at the beginning of the
    averaging files to differentiate between software sawtooth corrected
    data, raw data and external TIC data used in the file.
  • Stop @@Hb from updating system parameters as it conflicts with @@Ha.
  • Changed the manual command dialog box to non-model so that it now
    allows the user to perform other functions outside this dialog box
    while the manual command dialog box is open.
  • Corrected an error that caused a program crash when satellite PRN
    numbers greater than 32 were detected. These PRNs are associated
    primarily with augmentation satellites.
  • Corrected a number of bugs that will improve the operation and
    stability of SynTac.
  • Ensure that all unused rows in the satellite data table are erased.
  • Change the default elevation mask for Precision Timing mode to
    10 degrees for all receiver types.
  • Corrected the header and data fields for the Motorola PVT format log
    so that the header correctly describes the log contents. Changed the
    order of some fields for consistancy between entries created by the
    @@Ha and the @@Hb messages from 12 channel receivers such as the
    M12M used by the current generation of CNS Clock II clocks.
  • Improve the performance of the Navigation Status and Antenna
    Status panes in the Status Bar.
  • Increase the number of recognized COM ports from 64 to 128.

Version:
2.7.8

Version 2.7.8, Jul 26, 2009

Enhancements:

  • Implement support for the u-blox LEA-5T.

Corrections:

  • Some serial port controllers would not work with the Time Interval Counter. This is fixed.
  • Some serial port drivers produce faulty outputs for the 1PPS signal control lines. This is now managed correctly if it occurs.
  • Spell out "Motorola" instead of using "Mot" (e.g., "Motorola Binary" replaces "Mot Bin".
  • Improved the efficiency of processing certain Motorola Binary messages.
  • Eliminate intermittent exception when closing the program.

Version:
2.7.7

Version 2.7.7, May 08, 2009

Corrections:

  • A configuration management error prevented the fix that allows use of any baud rate for any receiver from 2.7.6 to function on some variations of the software. This is now fixed.

Version:
2.7.6

Version 2.7.6, Jul 22, 2008

Enhancements:

  • Allow the correct display of PRN32 on the Satellite Az-El Chart.
  • Allow use of any baud rate for any receiver. New models of some receivers are implementing new data rates.

Corrections:

  • Fixed a memory leak.

Version:
2.7.5

Version 2.7.5, Nov 11, 2007

Enhancements:

  • Recognize the iLotus built M12M based on the new SiRF copyright notice.

Corrections:

  • Change the "Bad Almanac" message to "Cold Start or Bad Almanac" for the M12 series receivers.

Version
2.7.4

Version 2.7.4, Aug 23, 2007

Enhancements:

  • Added 100PPS support for the CNS Clock II. The CNS Clock II is unique in that it provides a precision 1PPS even when in 100PPS mode so that normal operations can continue in 100PPS mode.

Corrections:

  • Correctly identify the new iLotus M12M receiver modules. These modules are designed by Motorola but built by iLotus.
  • Added interim support for the SIGNAV TM3-1 receiver which is intended to be a Motorola M12 Timing receiver clone.
  • Fix the default size of the main window for first time users.
Versions
2.0.0 - 2.7.3
1.0.0 - 1.2.8
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