Data AcQuisition And Real-Time Analysis
Scope - Spectrum - Spectrogram - Signal Generator
Software for Windows
Science with your Sound Card!
The following is from the Daqarta Help system:



Spectrum Analyzer

Signal Generator

(Absolutely FREE!)


Pitch Tracker


DaqMusiq Generator
(Free Music... Forever!)

Engine Simulator

LCR Meter

Remote Operation

DC Measurements

True RMS Voltmeter

Sound Level Meter

Frequency Counter
    Spectral Event

    MHz Frequencies

Data Logger

Waveform Averager


Post-Stimulus Time
Histogram (PSTH)

THD Meter

IMD Meter

Precision Phase Meter

Pulse Meter

Macro System

Multi-Trace Arrays

Trigger Controls


Spectral Peak Track

Spectrum Limit Testing

Direct-to-Disk Recording



Frequency response

Distortion measurement

Speech and music

Microphone calibration

Loudspeaker test

Auditory phenomena

Musical instrument tuning

Animal sound

Evoked potentials

Rotating machinery


Product test

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your application!

Auto-Update Check

Controls: Edit Menu >> Start Preferences >> Auto-Update Check
Macro: UpdateCheck

When this box is checked, each subsequent Daqarta startup will briefly connect to the Internet and read the number of the latest version from the Daqarta Website. If it is different from your version, a "New Version Available!" message box will appear. This offers to open your browser to a page showing the two version numbers, with links to download the latest version and/or view the Revision History to see what changes were made.

If the latest version is the same as your version, no message appears.

If no Internet connection is available, a failure message will appear on the main Daqarta status message line above the Generator Title box.

Note that some agressive Internet firewalls may block the Auto-Update Check. Your firewall should notify you if this happens, and ask if you want to allow it. You should tell the firewall to "Always allow" if you set Auto-Update Check on, to avoid having to approve each access.

Otherwise, consider using the manual Check for Updates option in the Help menu when you want to check for updates. Since this just launches your default browser, it is less likely to be blocked by the firewall.

Note: The Auto-Update Check option is not available on Win9x systems, only the manual Help option.

Macro Notes:

UpdateCheck=1 toggles this option on. Note: This does not cause an update check until the next Daqarta startup. UpdateCheck=0 toggles the option off.

To cause an immediate update check under macro control, use the Posn?U Miscellaneous Position Macro. This will return a value of 0 if you have the latest version, 1 if a newer version is available, or -1 if the Internet connection fails.

If the above returns a 1, you can use the HelpUpdate macro to directly open the browser to the version check page. (This is the macro for the manual Check for Updates option in the Help menu.)

You could use the above instead of Auto-Update Check to check only on every Nth startup. Use a fixed-point macro variable Var0-Z (which is preserved across Daqarta sessions) to store the N count. At the start of the First_Run auto-init macro you can add a call to your own macro, which counts down the variable, tests the Posn?U result, and calls HelpUpdate as needed.

See also Start Preferences Dialog, Help Menu - Check for Updates, Miscellaneous Position Macros


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