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Summary of Contents for QuantAsylum QA401
- Page 1 QA401 Quick Start...
- Page 2 Download & Install the QA401 App Download the QA401 Application 2. Make sure you opt to install drivers 3. After installation is complete, click the icon on your desktop...
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Page 3: Connecting The Hardware
Connecting the Hardware Plug in the QA401 hardware with a USB cable (not supplied). The OS should recognize the hardware, finish installing and then you should see the application configure and connect. 2. Once connected, you’ll see an indication in the lower left corner of the... - Page 4 Press the Run/Stop button. When it is illuminated, you are running. You should see yellow spectrum data appear and update. 4. There are two ranges on the QA401: +6 dBV and +26 dBV. When the +26 dBV range is selected, the attenuator is enabled and you will here a relay “click”...
- Page 5 Shorting the inputs To measure the noise floor of the device, you need to short the inputs with a low impedance shorting block (not included). These are often called “BNC shorting blocks” or “terminators”. You can find these for sale on Amazon or your favorite component supplier.
- Page 6 Making a noise measurement With the QA401 running, the inputs shorted and the +6 dBV input range selected, you should see a spectrum similar to that shown in the picture. Note the absence of spurs. You can also read the noise is -115.3 dBV.
- Page 7 Loopback Connection Leave the L- shorting block applied and using a BNC cable (not included) connect the left + output to the Left + input...
- Page 8 Loopback THD Measurement Press the Gen1 button. This enables the internal oscillator. You can change the amplitude or frequency of the oscillator by clicking and holding (long press) on the Gen1 button OR by holding the CTRL key and clicking on the button. Any button with a dot in the upper left has a menu that can be activated this way.
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Page 9: Other Controls
Other Controls You can change the depth of the FFT using the “Roller” buttons. This control can be changed by clicking on the up/down arrow, or by hovering over the arrows and rolling your mouse wheel. -
Page 10: Need More Help
Need more help? Forum: http://Forum.QuantAsylum.com Contact: Support@QuantAsylum.com The PDF manual is available from the application Select “Help -> Launch Help” Or, check in the installation directory C:\Program Files (x86)\QuantAsylum\QA401\Documentation...
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