Daqarta
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:

Features:

Oscilloscope

Spectrum Analyzer

8-Channel
Signal Generator

(Absolutely FREE!)

Spectrogram

Pitch Tracker

Pitch-to-MIDI

DaqMusiq Generator
(Free Music... Forever!)

Engine Simulator

LCR Meter

Remote Operation

DC Measurements

True RMS Voltmeter

Sound Level Meter

Frequency Counter
    Period
    Event
    Spectral Event

    Temperature
    Pressure
    MHz Frequencies

Data Logger

Waveform Averager

Histogram

Post-Stimulus Time
Histogram (PSTH)

THD Meter

IMD Meter

Precision Phase Meter

Pulse Meter

Macro System

Multi-Trace Arrays

Trigger Controls

Auto-Calibration

Spectral Peak Track

Spectrum Limit Testing

Direct-to-Disk Recording

Accessibility

Applications:

Frequency response

Distortion measurement

Speech and music

Microphone calibration

Loudspeaker test

Auditory phenomena

Musical instrument tuning

Animal sound

Evoked potentials

Rotating machinery

Automotive

Product test

Contact us about
your application!

Voltmeter dB Ref

Controls: Options >> Voltmeter >> dB Ref
Macro: VoltRef

This option is only available in Voltmeter dB mode. When you activate dB Ref, the current dB value at the moment of activation becomes the new reference value and the display immediately shows 0 dB. You can reset the reference value at any time by toggling dB Ref off and back on again.

The reference value remains in effect if you toggle to other modes, though it does nothing in those modes. When you return to dB mode it will still be in effect.

Note that if you exit Daqarta with dB Ref active, the reference value will be retained for the next session.


Macro Notes:

VoltRef=1 activates dB Ref mode and causes the current dB value to become the reference. VoltRef=0 exits and VoltRef=x toggles dB Ref mode.


See also Voltmeter, Voltmeter Channel

GO:

Questions? Comments? Contact us!

We respond to ALL inquiries, typically within 24 hrs.
INTERSTELLAR RESEARCH:
Over 30 Years of Innovative Instrumentation
© Copyright 2007 - 2017 by Interstellar Research
All rights reserved