Last Updated: 05/28/2008
WinSDR Release Notes:
Version 4.1.x Changes - Release Date 05/2008
Added support for PSN-ADC-SERIAL Version III board. Add All Channels buttons to the Channel Settings dialog box.
Version 4.0 Changes - Release Date: 01/2007
Added support for VolksMeter sensor. The System and Channel control dialog boxes now have tab controls to allow for more parameters.
Version 3.0 Changes - Release Date: 02/2006
Added MiniSeed and SAC Binary event file support. Added MiniSeed TCP/IP server feature. Improved GPS timing with new PSNADBoard.dll. ADC data saved to the daily record files can now be filtered. Fixed a problem with the TCP/IP Client data collection.
Version I Serial A/D Board Firmware Notes:
Version 2.5 Changes - Release Date: 03/11/2003
Data from the GPS receiver can now be sent to the host computer while collection A/D data. WinSDR version 2.0.9 and above has the ability to send the raw GPS data, via a TCP/IP connection, to WinPlotGPS.
Version 2.4 Changes - Release Date: 02/09/2003
Added a new flag in the configuration message to disable the 1 PPS output signal. This flag was added to prevent the 1 PPS signal from showing up in the analog data when an Amplifier / Filter board is mounted to the Serial Output A/D board. This signal can be found on pin 12 of the 25 pin I/O connector. The rising edge of this signal happens at the top of the second when the A/D board is locked to a time reference.
On P.C. board Rev 1.6 and higher, this signal also drives the Power LED. If the CPU module is driving the LED, and the 1 PPS signal is enables, the LED will blink at a 1 PPS rate. The length of time that the LED stays on indicates the time lock status. If the duty cycle is 900 milliseconds on and 100 ms off, the board is not locked to a time reference (WWV GPS etc). If the duty cycle is 500 ms on and 500 ms off, the board is locked to a time reference. The Systems Settings dialog box in WinSDR (Version 2.0.8 and higher) has a check box to control the 1 PPS output signal.
Corrected a problem with the GPS pass through mode.
Do to limited code space, the Port Time reference mode has been removed from the A/D board firmware Version 2.4) and WinSDR.
Version 2.0 Changes - Release Date: 07/21/2002
Added support for Garmin GPS 16 time keeping. Added GPS pass through mode.
Version 1.8 Changes - Release Date: 03/16/2002
Added support for more sample rates and fixed a problem with sample rates below 50 SPS. This version of the firmware should only be used with WinSDR 2.0.3 or above.
Version 1.7 Changes - Release Date: 03/08/2002
Fixed a problem in the time keeping code. Made a few minor changes to the log file time messages.
Version 1.6 Changes - Release Date: 02/24/2002
Added code to deal with no system block information in the flash memory. Without the system block information the program would not initialize the Comm port properly. This information should be programmed into the flash by the manufacturer of the CPU module. The last batch of modules I purchased did not contain this information, so I hard coded the location in flash memory where the program configuration information should be located.
Version 1.5 Changes - Release Date: 01/12/2002
Added Time Server output using the AUX serial comm port. This is similar to the time server output of SDR.
Support for the Port time reference input using the GPS port. This is similar to the Port time reference feature in SDR.
Fix a bug around how the program initializes the WWV time buffer.
Better support for the Local Time Reference feature.
Version 1.1 Changes - Release Date: 12/26/2001
Added support for different baud rates. Baud rate is saved in the flash memory.
Fixed a bug when changing the number of channels to record.
Version 1.0 - Release Date: 12/18/2001
Released to beta testers.