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Test Summary
This file is autogenerated. Please do not edit this file. This file can be recreated by running the Tractor application with the -H command line option. When -H is specified, the Tractor application will run silently, and emit a markdown file named Tractor_Help.md in the Tractor data directory. Remove the -H command line argument to run Tractor normally.
Allows operator to audition a wave file. This can be helpful for checking volume and tone controls.
Test Name: The name of the test. This must be unique and should be something meaningful to you as you will see this name reflected in the logs
WAV File Name: The name of the WAV file to be played. The WAV file must meet the requirements for sample rate (48K) and bit depth (24-bit integer or 32-bit float.
Output Level (0..1): A value between 0 and 1 (inclusive) that will set the level of the WAV playback. A value of 1.0 means the WAV playback volume will be unaltered. A value of 0.5 means the WAV playback volume will be half as loud (-6 dB) as present in the WAV file.
Operator Instruction: This is text that will appear when the operator sees this test screen. It can be used to give the operator an instruction or to ask them a pass/fail test.
Measures the efficiency of the amplifier under test. This is done by measuring amplifier output power and measuring amplifier input power (supply voltage and supply current). The ratio of these measurements is the efficiency, expressed in % (0..100). If both Left and Right are selected, then the assumption is that the channels are sharing the power into the amp equally. If a single channel is specified, then the other channel output will be muted and the assumption is the specified channel is using the the full power into the amplifier.
Test Name: The name of the test. This must be unique and should be something meaningful to you as you will see this name reflected in the logs
FFT Size (k): The size of the FFT that will be used for the test. Smaller FFTs run faster, while larger FFTs have more resolution
Retry Count: The number of times a failed test will be automatically retried before determining the failure is legitimate.
Measure Left Channel: If checked, the left channel will be displayed and measured. If not checked, the left channel will be muted and will not be displayed
Measure Right Channel: If checked, the right channel will be displayed and measured. If not checked, the right channel will be muted and will not be displayed
Display Y Max: The maximum value to be set for the Y axis. The HTML log will collect screen shots, and setting this ensures the screen capture is showing relevant regions.
Display Y Min: The minimum value to be set for the Y axis. The HTML log will collect screen shots, and setting this ensures the screen capture is showing relevant regions.
Pre-analyzer Input Gain (dB): The amount of gain, in dB that is present at the input of the analyzer. Some instruments, such as the QA450, have built in gain in their outputs. If so, that can be specified here. In the case of the QA450, it has 6 dB of built-in output attenuation. Thus, you'd enter a gain of -6 dB.
Amp Voltage: The supply voltage of the amplifier. The current will be measured, and it's assumed the applied voltage is 'stiff' and won't sag during operation. The power input will be calculated by the product of measured input current times the applied voltage specified here.
Test Frequency (Hz): The frequency of the QA401 generator.
Analyzer Output Level (dBV): The level of the QA401 generator.
Minimum Efficiency to Pass (%): The minimum efficiency required in order to pass the test. This is specifed as a number between 0 and 100.
Maximum Efficiency to Pass (%): The maxium efficiency required in order to pass the test. This is specifed as a number between 0 and 100.
Load Impedance (ohms): Specifies the load impedance seen by the DUT.
Analyzer Input Range: This specifies the maximum input level that will be used for the measurement. On the QA401, valid values are 6 and 26 dBV. Make sure to set this value correction to ensure you are getting the resolution you need.
Measures the frequency response using a chirp and compares to a mask. NOTE: FFT should be >32768.
Test Name: The name of the test. This must be unique and should be something meaningful to you as you will see this name reflected in the logs
FFT Size (k): The size of the FFT that will be used for the test. Smaller FFTs run faster, while larger FFTs have more resolution
Retry Count: The number of times a failed test will be automatically retried before determining the failure is legitimate.
Measure Left Channel: If checked, the left channel will be displayed and measured. If not checked, the left channel will be muted and will not be displayed
Measure Right Channel: If checked, the right channel will be displayed and measured. If not checked, the right channel will be muted and will not be displayed
Display Y Max: The maximum value to be set for the Y axis. The HTML log will collect screen shots, and setting this ensures the screen capture is showing relevant regions.
Display Y Min: The minimum value to be set for the Y axis. The HTML log will collect screen shots, and setting this ensures the screen capture is showing relevant regions.
Pre-analyzer Input Gain (dB): The amount of gain, in dB that is present at the input of the analyzer. Some instruments, such as the QA450, have built in gain in their outputs. If so, that can be specified here. In the case of the QA450, it has 6 dB of built-in output attenuation. Thus, you'd enter a gain of -6 dB.
Analyzer Output Level (dBV): The level of the QA401 generator.
Smoothing (1/N), N=: The amount of smoothing to be applied to the frequency response sweep. Note that normally smoothing is defined as a fraction of an octave. For example, if smooth over 1/48th of an octave, the smoothing is modest compared to smooth over 1/3rd of an octave. Here, you specify the numerator. So if you wished for 1/3rd octave smoothing, you'd specify the value 3.
Mask File Name: A mask file is created in the QA401 analyzer application. This is most often done by running the Test Plugin AmpFreqresponseChirp. If you run that plug-in with at least 3 different DUTs (generating 3 different traces), and place all three of those measurements on the same graph, then you can use Math->Add or Edit Mask from the Graph application. That will place the mask on the graph, and you can then use the Traces->Export Mask to export the mask.
Analyzer Input Range: This specifies the maximum input level that will be used for the measurement. On the QA401, valid values are 6 and 26 dBV. Make sure to set this value correction to ensure you are getting the resolution you need.
Measures the frequency response into the specified load using a chirp and compares to a mask.
Test Name: The name of the test. This must be unique and should be something meaningful to you as you will see this name reflected in the logs
FFT Size (k): The size of the FFT that will be used for the test. Smaller FFTs run faster, while larger FFTs have more resolution
Retry Count: The number of times a failed test will be automatically retried before determining the failure is legitimate.
Measure Left Channel: If checked, the left channel will be displayed and measured. If not checked, the left channel will be muted and will not be displayed
Measure Right Channel: If checked, the right channel will be displayed and measured. If not checked, the right channel will be muted and will not be displayed
Display Y Max: The maximum value to be set for the Y axis. The HTML log will collect screen shots, and setting this ensures the screen capture is showing relevant regions.
Display Y Min: The minimum value to be set for the Y axis. The HTML log will collect screen shots, and setting this ensures the screen capture is showing relevant regions.
Pre-analyzer Input Gain (dB): The amount of gain, in dB that is present at the input of the analyzer. Some instruments, such as the QA450, have built in gain in their outputs. If so, that can be specified here. In the case of the QA450, it has 6 dB of built-in output attenuation. Thus, you'd enter a gain of -6 dB.
Analyzer Output Level (dBV): The level of the QA401 generator.
Smoothing (1/N), N=: The amount of smoothing to be applied to the frequency response sweep. Note that normally smoothing is defined as a fraction of an octave. For example, if smooth over 1/48th of an octave, the smoothing is modest compared to smooth over 1/3rd of an octave. Here, you specify the numerator. So if you wished for 1/3rd octave smoothing, you'd specify the value 3.
Mask File Name: A mask file is created in the QA401 analyzer application. This is most often done by running the Test Plugin AmpFreqresponseChirp. If you run that plug-in with at least 3 different DUTs (generating 3 different traces), and place all three of those measurements on the same graph, then you can use Math->Add or Edit Mask from the Graph application. That will place the mask on the graph, and you can then use the Traces->Export Mask to export the mask.
Analyzer Input Range: This specifies the maximum input level that will be used for the measurement. On the QA401, valid values are 6 and 26 dBV. Make sure to set this value correction to ensure you are getting the resolution you need.
Load Impedance (ohms): Specifies the load impedance seen by the DUT.
Measures the gain at a specified frequency and amplitude. Results must be within a given window to pass.
Test Name: The name of the test. This must be unique and should be something meaningful to you as you will see this name reflected in the logs
FFT Size (k): The size of the FFT that will be used for the test. Smaller FFTs run faster, while larger FFTs have more resolution
Retry Count: The number of times a failed test will be automatically retried before determining the failure is legitimate.
Measure Left Channel: If checked, the left channel will be displayed and measured. If not checked, the left channel will be muted and will not be displayed
Measure Right Channel: If checked, the right channel will be displayed and measured. If not checked, the right channel will be muted and will not be displayed
Display Y Max: The maximum value to be set for the Y axis. The HTML log will collect screen shots, and setting this ensures the screen capture is showing relevant regions.
Display Y Min: The minimum value to be set for the Y axis. The HTML log will collect screen shots, and setting this ensures the screen capture is showing relevant regions.
Pre-analyzer Input Gain (dB): The amount of gain, in dB that is present at the input of the analyzer. Some instruments, such as the QA450, have built in gain in their outputs. If so, that can be specified here. In the case of the QA450, it has 6 dB of built-in output attenuation. Thus, you'd enter a gain of -6 dB.
Test Frequency (Hz): The frequency of the QA401 generator.
Analyzer Output Level (dBV): The level of the QA401 generator.
Minimum Gain to Pass (dB): The minimum gain, in dB, required in order to pass the test.
Maximum Gain to Pass (dB): The maximum gain, in dB, required in order to pass the test.
Analyzer Input Range: This specifies the maximum input level that will be used for the measurement. On the QA401, valid values are 6 and 26 dBV. Make sure to set this value correction to ensure you are getting the resolution you need.
Measures the gain at a specified frequency and amplitude at a specified load impedance. Results must be within a given window to pass.
Test Name: The name of the test. This must be unique and should be something meaningful to you as you will see this name reflected in the logs
FFT Size (k): The size of the FFT that will be used for the test. Smaller FFTs run faster, while larger FFTs have more resolution
Retry Count: The number of times a failed test will be automatically retried before determining the failure is legitimate.
Measure Left Channel: If checked, the left channel will be displayed and measured. If not checked, the left channel will be muted and will not be displayed
Measure Right Channel: If checked, the right channel will be displayed and measured. If not checked, the right channel will be muted and will not be displayed
Display Y Max: The maximum value to be set for the Y axis. The HTML log will collect screen shots, and setting this ensures the screen capture is showing relevant regions.
Display Y Min: The minimum value to be set for the Y axis. The HTML log will collect screen shots, and setting this ensures the screen capture is showing relevant regions.
Pre-analyzer Input Gain (dB): The amount of gain, in dB that is present at the input of the analyzer. Some instruments, such as the QA450, have built in gain in their outputs. If so, that can be specified here. In the case of the QA450, it has 6 dB of built-in output attenuation. Thus, you'd enter a gain of -6 dB.
Test Frequency (Hz): The frequency of the QA401 generator.
Analyzer Output Level (dBV): The level of the QA401 generator.
Minimum Gain to Pass (dB): The minimum gain, in dB, required in order to pass the test.
Maximum Gain to Pass (dB): The maximum gain, in dB, required in order to pass the test.
Load Impedance (ohms): Specifies the load impedance seen by the DUT.
Analyzer Input Range: This specifies the maximum input level that will be used for the measurement. On the QA401, valid values are 6 and 26 dBV. Make sure to set this value correction to ensure you are getting the resolution you need.
Measures the gain at a specified frequency and amplitude on the left channel. The results must fall into 1 of 3 ranges to be considered a 'pass'. If the measured gain falls outside of these 3 ranges, it is considered a 'fail'. The operator will be prompted in the pass/fail screen with a message corresponding to a particular gain range. This allows performance sorting by an operator.
Test Name: The name of the test. This must be unique and should be something meaningful to you as you will see this name reflected in the logs
FFT Size (k): The size of the FFT that will be used for the test. Smaller FFTs run faster, while larger FFTs have more resolution
Retry Count: The number of times a failed test will be automatically retried before determining the failure is legitimate.
Measure Left Channel: If checked, the left channel will be displayed and measured. If not checked, the left channel will be muted and will not be displayed
Measure Right Channel: If checked, the right channel will be displayed and measured. If not checked, the right channel will be muted and will not be displayed
Display Y Max: The maximum value to be set for the Y axis. The HTML log will collect screen shots, and setting this ensures the screen capture is showing relevant regions.
Display Y Min: The minimum value to be set for the Y axis. The HTML log will collect screen shots, and setting this ensures the screen capture is showing relevant regions.
Pre-analyzer Input Gain (dB): The amount of gain, in dB that is present at the input of the analyzer. Some instruments, such as the QA450, have built in gain in their outputs. If so, that can be specified here. In the case of the QA450, it has 6 dB of built-in output attenuation. Thus, you'd enter a gain of -6 dB.
Test Frequency (Hz): The frequency of the QA401 generator.
Analyzer Output Level (dBV): The level of the QA401 generator.
Analyzer Input Range: This specifies the maximum input level that will be used for the measurement. On the QA401, valid values are 6 and 26 dBV. Make sure to set this value correction to ensure you are getting the resolution you need.
Minimum Gain to Pass Sort 0 (dB): The minimum gain, in dB, required in order to pass the test while being 'bucketed' into bucket 0.
Maximum Gain to Pass Sort 0 (dB): The maximum gain, in dB, required in order to pass the test while being 'bucketed' into bucket 0.
Operator Message Sort 0: The message displayed to the operator when the DUT resolves into sort bin 0. This test is useful if you are sorting produced components for gain.
Minimum Gain to Pass Sort 1 (dB): The minimum gain, in dB, required in order to pass the test while being 'bucketed' into bucket 1.
Maximum Gain to Pass Sort 1 (dB): The maximum gain, in dB, required in order to pass the test while being 'bucketed' into bucket 1.
Operator Message Sort 1: The message displayed to the operator when the DUT resolves into sort bin 1. This test is useful if you are sorting produced components for gain.
Minimum Gain to Pass Sort 2 (dB): The minimum gain, in dB, required in order to pass the test while being 'bucketed' into bucket 2.
Maximum Gain to Pass Sort 2 (dB): The maximum gain, in dB, required in order to pass the test while being 'bucketed' into bucket 2.
Operator Message Sort 2: The message displayed to the operator when the DUT resolves into sort bin 2. This test is useful if you are sorting produced components for gain.
Measures the gain at a specified frequency and amplitude. The results must fall into 1 of 5 ranges to be considered a 'pass'. If the measured gain falls outside of these 5 ranges, it is considered a 'fail'. The operator will be prompted in the pass/fail screen with a message corresponding to a particular gain range. This allows performance sorting by an operator.
Test Name: The name of the test. This must be unique and should be something meaningful to you as you will see this name reflected in the logs
FFT Size (k): The size of the FFT that will be used for the test. Smaller FFTs run faster, while larger FFTs have more resolution
Retry Count: The number of times a failed test will be automatically retried before determining the failure is legitimate.
Measure Left Channel: If checked, the left channel will be displayed and measured. If not checked, the left channel will be muted and will not be displayed
Measure Right Channel: If checked, the right channel will be displayed and measured. If not checked, the right channel will be muted and will not be displayed
Display Y Max: The maximum value to be set for the Y axis. The HTML log will collect screen shots, and setting this ensures the screen capture is showing relevant regions.
Display Y Min: The minimum value to be set for the Y axis. The HTML log will collect screen shots, and setting this ensures the screen capture is showing relevant regions.
Pre-analyzer Input Gain (dB): The amount of gain, in dB that is present at the input of the analyzer. Some instruments, such as the QA450, have built in gain in their outputs. If so, that can be specified here. In the case of the QA450, it has 6 dB of built-in output attenuation. Thus, you'd enter a gain of -6 dB.
Test Frequency (Hz): The frequency of the QA401 generator.
Analyzer Output Level (dBV): The level of the QA401 generator.
Analyzer Input Range: This specifies the maximum input level that will be used for the measurement. On the QA401, valid values are 6 and 26 dBV. Make sure to set this value correction to ensure you are getting the resolution you need.
Minimum Gain to Pass Sort 0 (dB): The minimum gain, in dB, required in order to pass the test while being 'bucketed' into bucket 0.
Maximum Gain to Pass Sort 0 (dB): The maximum gain, in dB, required in order to pass the test while being 'bucketed' into bucket 0.
Operator Message Sort 0: The message displayed to the operator when the DUT resolves into sort bin 0. This test is useful if you are sorting produced components for gain.
Minimum Gain to Pass Sort 1 (dB): The minimum gain, in dB, required in order to pass the test while being 'bucketed' into bucket 1.
Maximum Gain to Pass Sort 1 (dB): The maximum gain, in dB, required in order to pass the test while being 'bucketed' into bucket 1.
Operator Message Sort 1: The message displayed to the operator when the DUT resolves into sort bin 1. This test is useful if you are sorting produced components for gain.
Minimum Gain to Pass Sort 2 (dB): The minimum gain, in dB, required in order to pass the test while being 'bucketed' into bucket 2.
Maximum Gain to Pass Sort 2 (dB): The maximum gain, in dB, required in order to pass the test while being 'bucketed' into bucket 2.
Operator Message Sort 2: The message displayed to the operator when the DUT resolves into sort bin 2. This test is useful if you are sorting produced components for gain.
Minimum Gain to Pass Sort 3 (dB): The minimum gain, in dB, required in order to pass the test while being 'bucketed' into bucket 3.
Maximum Gain to Pass Sort 3 (dB): The maximum gain, in dB, required in order to pass the test while being 'bucketed' into bucket 3.
Operator Message Sort 3: The message displayed to the operator when the DUT resolves into sort bin 3. This test is useful if you are sorting produced components for gain.
Minimum Gain to Pass Sort 4 (dB): The minimum gain, in dB, required in order to pass the test while being 'bucketed' into bucket 4.
Maximum Gain to Pass Sort 4 (dB): The maximum gain, in dB, required in order to pass the test while being 'bucketed' into bucket 4.
Operator Message Sort 4: The message displayed to the operator when the DUT resolves into sort bin 4. This test is useful if you are sorting produced components for gain.
Prompts the user to enter some information as a string. This function returns 'pass = true' if the user entered something, it will be converted to upper case and leading and trailing spaces will be removed, but no further qualification is performed on the input string. If the user hit cancel or if the string is empty, then 'pass = false' is returned
Test Name: The name of the test. This must be unique and should be something meaningful to you as you will see this name reflected in the logs
Prompt Message: A message displayed to the operator. This can be an instruction that must be followed or, if the Display Fail Button option is checked asking the operator to make a pass/fail assessment.
Performs IMD ITU Test. This test generates dual tones at 19 and 20 KHz, each with a level 3 dB below the specified amplitude. The combined amplitude of the tones will be the value specified in the test parameters. The resultant mixing product at 1 kHz is measured, and the amplitude relative to the specified amplitude is computed. If the amplitude relative to the specified output amplitude is within the specified window limits, then the test is considered to pass.
Test Name: The name of the test. This must be unique and should be something meaningful to you as you will see this name reflected in the logs
FFT Size (k): The size of the FFT that will be used for the test. Smaller FFTs run faster, while larger FFTs have more resolution
Retry Count: The number of times a failed test will be automatically retried before determining the failure is legitimate.
Measure Left Channel: If checked, the left channel will be displayed and measured. If not checked, the left channel will be muted and will not be displayed
Measure Right Channel: If checked, the right channel will be displayed and measured. If not checked, the right channel will be muted and will not be displayed
Display Y Max: The maximum value to be set for the Y axis. The HTML log will collect screen shots, and setting this ensures the screen capture is showing relevant regions.
Display Y Min: The minimum value to be set for the Y axis. The HTML log will collect screen shots, and setting this ensures the screen capture is showing relevant regions.
Pre-analyzer Input Gain (dB): The amount of gain, in dB that is present at the input of the analyzer. Some instruments, such as the QA450, have built in gain in their outputs. If so, that can be specified here. In the case of the QA450, it has 6 dB of built-in output attenuation. Thus, you'd enter a gain of -6 dB.
Minimum Level to Pass (dBc): The minimum level, in dBc, required in order to pass the test.
Maximum Level to Pass (dBc): The maximum level, in dBc, required in order to pass the test.
Analyzer Output Level (dBV): The level of the QA401 generator.
Analyzer Input Range: This specifies the maximum input level that will be used for the measurement. On the QA401, valid values are 6 and 26 dBV. Make sure to set this value correction to ensure you are getting the resolution you need.
Performs IMD ITU Test. This test generates dual tones at 19 and 20 KHz, each with a level 3 dB below the specified amplitude and at the specified load. The combined amplitude of the tones will be the value specified in the test parameters. The resultant mixing product at 1 kHz is measured, and the amplitude relative to the specified amplitude is computed. If the amplitude relative to the specified output amplitude is within the specified window limits, then the test is considered to pass.
Test Name: The name of the test. This must be unique and should be something meaningful to you as you will see this name reflected in the logs
FFT Size (k): The size of the FFT that will be used for the test. Smaller FFTs run faster, while larger FFTs have more resolution
Retry Count: The number of times a failed test will be automatically retried before determining the failure is legitimate.
Measure Left Channel: If checked, the left channel will be displayed and measured. If not checked, the left channel will be muted and will not be displayed
Measure Right Channel: If checked, the right channel will be displayed and measured. If not checked, the right channel will be muted and will not be displayed
Display Y Max: The maximum value to be set for the Y axis. The HTML log will collect screen shots, and setting this ensures the screen capture is showing relevant regions.
Display Y Min: The minimum value to be set for the Y axis. The HTML log will collect screen shots, and setting this ensures the screen capture is showing relevant regions.
Pre-analyzer Input Gain (dB): The amount of gain, in dB that is present at the input of the analyzer. Some instruments, such as the QA450, have built in gain in their outputs. If so, that can be specified here. In the case of the QA450, it has 6 dB of built-in output attenuation. Thus, you'd enter a gain of -6 dB.
Minimum Level to Pass (dBc): The minimum level, in dBc, required in order to pass the test.
Maximum Level to Pass (dBc): The maximum level, in dBc, required in order to pass the test.
Analyzer Output Level (dBV): The level of the QA401 generator.
Load Impedance: The impedance, measured in ohms, of the load presented to the DUT.
Analyzer Input Range: This specifies the maximum input level that will be used for the measurement. On the QA401, valid values are 6 and 26 dBV. Make sure to set this value correction to ensure you are getting the resolution you need.
Measures the output impedance of an amplifier by making a measurement at two load points using the QA450.
Test Name: The name of the test. This must be unique and should be something meaningful to you as you will see this name reflected in the logs
FFT Size (k): The size of the FFT that will be used for the test. Smaller FFTs run faster, while larger FFTs have more resolution
Retry Count: The number of times a failed test will be automatically retried before determining the failure is legitimate.
Measure Left Channel: If checked, the left channel will be displayed and measured. If not checked, the left channel will be muted and will not be displayed
Measure Right Channel: If checked, the right channel will be displayed and measured. If not checked, the right channel will be muted and will not be displayed
Display Y Max: The maximum value to be set for the Y axis. The HTML log will collect screen shots, and setting this ensures the screen capture is showing relevant regions.
Display Y Min: The minimum value to be set for the Y axis. The HTML log will collect screen shots, and setting this ensures the screen capture is showing relevant regions.
Pre-analyzer Input Gain (dB): The amount of gain, in dB that is present at the input of the analyzer. Some instruments, such as the QA450, have built in gain in their outputs. If so, that can be specified here. In the case of the QA450, it has 6 dB of built-in output attenuation. Thus, you'd enter a gain of -6 dB.
Test Frequency (Hz): The frequency of the QA401 generator.
Analyzer Output Level (dBV): The level of the QA401 generator.
Minimum Impedance to Pass (Ω): The minimum impedance, in ohms, required in order to pass the test.
Maximum Impedance to Pass (Ω): The maximum impedance, in ohms, required in order to pass the test.
Analyzer Input Range: This specifies the maximum input level that will be used for the measurement. On the QA401, valid values are 6 and 26 dBV. Make sure to set this value correction to ensure you are getting the resolution you need.
Compares a reference microphone (left channel) to a test microphone (right channel). The difference (L-R) is displayed and compared to a specified mask.
Test Name: The name of the test. This must be unique and should be something meaningful to you as you will see this name reflected in the logs
FFT Size (k): The size of the FFT that will be used for the test. Smaller FFTs run faster, while larger FFTs have more resolution
Retry Count: The number of times a failed test will be automatically retried before determining the failure is legitimate.
Measure Left Channel: If checked, the left channel will be displayed and measured. If not checked, the left channel will be muted and will not be displayed
Measure Right Channel: If checked, the right channel will be displayed and measured. If not checked, the right channel will be muted and will not be displayed
Display Y Max: The maximum value to be set for the Y axis. The HTML log will collect screen shots, and setting this ensures the screen capture is showing relevant regions.
Display Y Min: The minimum value to be set for the Y axis. The HTML log will collect screen shots, and setting this ensures the screen capture is showing relevant regions.
Pre-analyzer Input Gain (dB): The amount of gain, in dB that is present at the input of the analyzer. Some instruments, such as the QA450, have built in gain in their outputs. If so, that can be specified here. In the case of the QA450, it has 6 dB of built-in output attenuation. Thus, you'd enter a gain of -6 dB.
Analyzer Output Level (dBV): The level of the QA401 generator.
Windowing (mS) (0=none): The windowing that will be applied to the recovered chirped impulse response. The indicated window specifies the time time after the peak of the impulse response. A 1 mS gate period is always applied prior to the peak. In general, if you are working with a microphone in a room that hasn't been specially treated for reflections, then you want to roughly use 1 mS of windowing time for every one foot of distance the test setup has from a reflecting surface, including floors and walls. So, if your test setup is 3 feet (~1m) off the ground and you have 3 feet free on all sides of the test setup, then a good first order value to use for the Windowing value is 3 mS. This should give a response good down to 1/3mS = 333 Hz. That is, information below 333 Hz will be increasingly uncertain but values above that level will be increasingly certain. Similarly, if you can provide a DUT setup that exhibits 9 feet (3m) of clearance in all directions (floor, ceiling, walls) then your lower bound of confidence will be 1/9mS = 111 Hz.
Smoothing (1/N), N=: The amount of smoothing to be applied to the frequency response sweep. Note that normally smoothing is defined as a fraction of an octave. For example, if smooth over 1/48th of an octave, the smoothing is modest compared to smooth over 1/3rd of an octave. Here, you specify the numerator. So if you wished for 1/3rd octave smoothing, you'd specify the value 3.
Mask File Name: A mask file is created in the QA401 analyzer application. This is most often done by running the Test Plugin AmpFreqresponseChirp. If you run that plug-in with at least 3 different DUTs (generating 3 different traces), and place all three of those measurements on the same graph, then you can use Math->Add or Edit Mask from the Graph application. That will place the mask on the graph, and you can then use the Traces->Export Mask to export the mask.
Analyzer Input Range: This specifies the maximum input level that will be used for the measurement. On the QA401, valid values are 6 and 26 dBV. Make sure to set this value correction to ensure you are getting the resolution you need.
Check Phase: If checked, the phase of signals will be compared and flagged they do not agree.
Sets the power state on the QA450 and measures the current in that state.
Test Name: The name of the test. This must be unique and should be something meaningful to you as you will see this name reflected in the logs
FFT Size (k): The size of the FFT that will be used for the test. Smaller FFTs run faster, while larger FFTs have more resolution
Retry Count: The number of times a failed test will be automatically retried before determining the failure is legitimate.
Measure Left Channel: If checked, the left channel will be displayed and measured. If not checked, the left channel will be muted and will not be displayed
Measure Right Channel: If checked, the right channel will be displayed and measured. If not checked, the right channel will be muted and will not be displayed
Display Y Max: The maximum value to be set for the Y axis. The HTML log will collect screen shots, and setting this ensures the screen capture is showing relevant regions.
Display Y Min: The minimum value to be set for the Y axis. The HTML log will collect screen shots, and setting this ensures the screen capture is showing relevant regions.
Pre-analyzer Input Gain (dB): The amount of gain, in dB that is present at the input of the analyzer. Some instruments, such as the QA450, have built in gain in their outputs. If so, that can be specified here. In the case of the QA450, it has 6 dB of built-in output attenuation. Thus, you'd enter a gain of -6 dB.
Power Enabled: Indicates if power is to turned on or off to the DUT. This is achieved via the solid state relay in the QA450. Note that there are hardware-dependent limitations on swapping DUTs when the power is active. This is because connecting a new DUT with power activecan couse thousands of amps to flow as the output capacitors in the power supply are asked to charge the input capacitors in the DUT. Read the manual to better understand the issues involved.
Minimum Current to Pass (A): The minimum current, in amps, required in order to pass the test.
Maximum Current to Pass (A): The maximum current, in amps, required in order to pass the test.
Instructs the user to complete an action. A PNG image (512x384) may be specified as an instruction aid, and the operator may optionally decide if the action succeeded or failed. If an image is specified, it will be stretched to fit, maintaining its current aspect ratio.
Test Name: The name of the test. This must be unique and should be something meaningful to you as you will see this name reflected in the logs
Prompt Message: A message displayed to the operator. This can be an instruction that must be followed or, if the Display Fail Button option is checked asking the operator to make a pass/fail assessment.
Bitmap File Name: This is the name of a bitmap file that will be displayed to the operator. The bitmap should be a PNG image with a resolution of 512x384. The image will be stretched to fit, maintaining specified aspect ratio.
Display Fail Button: If chedcked, the operator will see a Fail button in addition to the Pass button.
Measures the RMS level in the specified bandwidth. If the resulting measurement is within the specified limits, then 'pass = true' is returned.
Test Name: The name of the test. This must be unique and should be something meaningful to you as you will see this name reflected in the logs
FFT Size (k): The size of the FFT that will be used for the test. Smaller FFTs run faster, while larger FFTs have more resolution
Retry Count: The number of times a failed test will be automatically retried before determining the failure is legitimate.
Measure Left Channel: If checked, the left channel will be displayed and measured. If not checked, the left channel will be muted and will not be displayed
Measure Right Channel: If checked, the right channel will be displayed and measured. If not checked, the right channel will be muted and will not be displayed
Display Y Max: The maximum value to be set for the Y axis. The HTML log will collect screen shots, and setting this ensures the screen capture is showing relevant regions.
Display Y Min: The minimum value to be set for the Y axis. The HTML log will collect screen shots, and setting this ensures the screen capture is showing relevant regions.
Pre-analyzer Input Gain (dB): The amount of gain, in dB that is present at the input of the analyzer. Some instruments, such as the QA450, have built in gain in their outputs. If so, that can be specified here. In the case of the QA450, it has 6 dB of built-in output attenuation. Thus, you'd enter a gain of -6 dB.
Maximum Level to Pass (dBV): The maximum level, in dBV, required in order to pass the test.
Minimum Level to Pass (dBV): The minimum level, in dBV, required in order to pass the test.
Analyzer Input Range: This specifies the maximum input level that will be used for the measurement. On the QA401, valid values are 6 and 26 dBV. Make sure to set this value correction to ensure you are getting the resolution you need.
RMS Measurement Start (Hz): The starting frequency of the indicated RMS measurement.
RMS Measurement Stop (Hz): The ending frequency of the indicated RMS measurement.
Measures the RMS level in the specified bandwidth with the indicated load applied. If the resulting measurement is within the specified limits, then 'pass = true' is returned.
Test Name: The name of the test. This must be unique and should be something meaningful to you as you will see this name reflected in the logs
FFT Size (k): The size of the FFT that will be used for the test. Smaller FFTs run faster, while larger FFTs have more resolution
Retry Count: The number of times a failed test will be automatically retried before determining the failure is legitimate.
Measure Left Channel: If checked, the left channel will be displayed and measured. If not checked, the left channel will be muted and will not be displayed
Measure Right Channel: If checked, the right channel will be displayed and measured. If not checked, the right channel will be muted and will not be displayed
Display Y Max: The maximum value to be set for the Y axis. The HTML log will collect screen shots, and setting this ensures the screen capture is showing relevant regions.
Display Y Min: The minimum value to be set for the Y axis. The HTML log will collect screen shots, and setting this ensures the screen capture is showing relevant regions.
Pre-analyzer Input Gain (dB): The amount of gain, in dB that is present at the input of the analyzer. Some instruments, such as the QA450, have built in gain in their outputs. If so, that can be specified here. In the case of the QA450, it has 6 dB of built-in output attenuation. Thus, you'd enter a gain of -6 dB.
Maximum Level to Pass (dBV): The maximum level, in dBV, required in order to pass the test.
Minimum Level to Pass (dBV): The minimum level, in dBV, required in order to pass the test.
Load Impedance (ohms): Specifies the load impedance seen by the DUT.
Analyzer Input Range: This specifies the maximum input level that will be used for the measurement. On the QA401, valid values are 6 and 26 dBV. Make sure to set this value correction to ensure you are getting the resolution you need.
RMS Measurement Start (Hz): The starting frequency of the indicated RMS measurement.
RMS Measurement Stop (Hz): The ending frequency of the indicated RMS measurement.
Executes a shell command with specified arguments. Waits for the specified time for the shell command to complete. If the shell command completes in that time, the test is passed. If not, the test is terminated.
Test Name: The name of the test. This must be unique and should be something meaningful to you as you will see this name reflected in the logs
Process Name: The name of the executable process to run.
Arguments: This specifies the arguments that will be passed to an executable specified in the Process Name.
Timeout (sec): This is the amount of time an external operation can take before being terminated.
Run Minimized: If checked, the CMD window will run minimized and generally won't be visible to the operator. If unchecked, the operator will see the CMD window and execution progress.
Measures THD at a given frequency and amplitude. Results must be within a given window to pass.
Test Name: The name of the test. This must be unique and should be something meaningful to you as you will see this name reflected in the logs
FFT Size (k): The size of the FFT that will be used for the test. Smaller FFTs run faster, while larger FFTs have more resolution
Retry Count: The number of times a failed test will be automatically retried before determining the failure is legitimate.
Measure Left Channel: If checked, the left channel will be displayed and measured. If not checked, the left channel will be muted and will not be displayed
Measure Right Channel: If checked, the right channel will be displayed and measured. If not checked, the right channel will be muted and will not be displayed
Display Y Max: The maximum value to be set for the Y axis. The HTML log will collect screen shots, and setting this ensures the screen capture is showing relevant regions.
Display Y Min: The minimum value to be set for the Y axis. The HTML log will collect screen shots, and setting this ensures the screen capture is showing relevant regions.
Pre-analyzer Input Gain (dB): The amount of gain, in dB that is present at the input of the analyzer. Some instruments, such as the QA450, have built in gain in their outputs. If so, that can be specified here. In the case of the QA450, it has 6 dB of built-in output attenuation. Thus, you'd enter a gain of -6 dB.
Test Frequency (Hz): The frequency of the QA401 generator.
Analyzer Output Level (dBV): The level of the QA401 generator.
Minimum THD to Pass (dB): The minimum THD, in dB, required in order to pass the test.
Maximum THD to Pass (dB): The maximum THD, in dB, required in order to pass the test.
Analyzer Input Range: This specifies the maximum input level that will be used for the measurement. On the QA401, valid values are 6 and 26 dBV. Make sure to set this value correction to ensure you are getting the resolution you need.
Measures THD at a given frequency and amplitude at a given load. Results must be within a given window to pass.
Test Name: The name of the test. This must be unique and should be something meaningful to you as you will see this name reflected in the logs
FFT Size (k): The size of the FFT that will be used for the test. Smaller FFTs run faster, while larger FFTs have more resolution
Retry Count: The number of times a failed test will be automatically retried before determining the failure is legitimate.
Measure Left Channel: If checked, the left channel will be displayed and measured. If not checked, the left channel will be muted and will not be displayed
Measure Right Channel: If checked, the right channel will be displayed and measured. If not checked, the right channel will be muted and will not be displayed
Display Y Max: The maximum value to be set for the Y axis. The HTML log will collect screen shots, and setting this ensures the screen capture is showing relevant regions.
Display Y Min: The minimum value to be set for the Y axis. The HTML log will collect screen shots, and setting this ensures the screen capture is showing relevant regions.
Pre-analyzer Input Gain (dB): The amount of gain, in dB that is present at the input of the analyzer. Some instruments, such as the QA450, have built in gain in their outputs. If so, that can be specified here. In the case of the QA450, it has 6 dB of built-in output attenuation. Thus, you'd enter a gain of -6 dB.
Test Frequency (Hz): The frequency of the QA401 generator.
Analyzer Output Level (dBV): The level of the QA401 generator.
Minimum THD to Pass (dB): The minimum THD, in dB, required in order to pass the test.
Maximum THD to Pass (dB): The maximum THD, in dB, required in order to pass the test.
Load Impedance (ohms): Specifies the load impedance seen by the DUT.
Analyzer Input Range: This specifies the maximum input level that will be used for the measurement. On the QA401, valid values are 6 and 26 dBV. Make sure to set this value correction to ensure you are getting the resolution you need.
Measures THD at a given frequency and amplitude at a given load with power indicated. Results must be withing the specified window to pass.
Test Name: The name of the test. This must be unique and should be something meaningful to you as you will see this name reflected in the logs
FFT Size (k): The size of the FFT that will be used for the test. Smaller FFTs run faster, while larger FFTs have more resolution
Retry Count: The number of times a failed test will be automatically retried before determining the failure is legitimate.
Measure Left Channel: If checked, the left channel will be displayed and measured. If not checked, the left channel will be muted and will not be displayed
Measure Right Channel: If checked, the right channel will be displayed and measured. If not checked, the right channel will be muted and will not be displayed
Display Y Max: The maximum value to be set for the Y axis. The HTML log will collect screen shots, and setting this ensures the screen capture is showing relevant regions.
Display Y Min: The minimum value to be set for the Y axis. The HTML log will collect screen shots, and setting this ensures the screen capture is showing relevant regions.
Pre-analyzer Input Gain (dB): The amount of gain, in dB that is present at the input of the analyzer. Some instruments, such as the QA450, have built in gain in their outputs. If so, that can be specified here. In the case of the QA450, it has 6 dB of built-in output attenuation. Thus, you'd enter a gain of -6 dB.
Test Frequency (Hz): The frequency of the QA401 generator.
Analyzer Output Level (dBV): The level of the QA401 generator.
Minimum THD to Pass (dB): The minimum THD, in dB, required in order to pass the test.
Maximum THD to Pass (dB): The maximum THD, in dB, required in order to pass the test.
Load Impedance (ohms): Specifies the load impedance seen by the DUT.
Analyzer Input Range: This specifies the maximum input level that will be used for the measurement. On the QA401, valid values are 6 and 26 dBV. Make sure to set this value correction to ensure you are getting the resolution you need.
Measures THD+N at a given frequency and amplitude over the specified bandwidth. Results must be within a given window to pass.
Test Name: The name of the test. This must be unique and should be something meaningful to you as you will see this name reflected in the logs
FFT Size (k): The size of the FFT that will be used for the test. Smaller FFTs run faster, while larger FFTs have more resolution
Retry Count: The number of times a failed test will be automatically retried before determining the failure is legitimate.
Measure Left Channel: If checked, the left channel will be displayed and measured. If not checked, the left channel will be muted and will not be displayed
Measure Right Channel: If checked, the right channel will be displayed and measured. If not checked, the right channel will be muted and will not be displayed
Display Y Max: The maximum value to be set for the Y axis. The HTML log will collect screen shots, and setting this ensures the screen capture is showing relevant regions.
Display Y Min: The minimum value to be set for the Y axis. The HTML log will collect screen shots, and setting this ensures the screen capture is showing relevant regions.
Pre-analyzer Input Gain (dB): The amount of gain, in dB that is present at the input of the analyzer. Some instruments, such as the QA450, have built in gain in their outputs. If so, that can be specified here. In the case of the QA450, it has 6 dB of built-in output attenuation. Thus, you'd enter a gain of -6 dB.
Test Frequency (Hz): The frequency of the QA401 generator.
Analyzer Output Level (dBV): The level of the QA401 generator.
Start Frequency (Hz): The starting frequency of the noise measurement for THD+N measurements.
Stop Frequency (Hz): The stopping frequency of the noise measurement for THD+N measurements.
Minimum THD+N to Pass (dB): The minimum THD+N, in dB, required in order to pass the test.
Maximum THD+N to Pass (dB): The maximum THD+n, in dB, required in order to pass the test.
Analyzer Input Range: This specifies the maximum input level that will be used for the measurement. On the QA401, valid values are 6 and 26 dBV. Make sure to set this value correction to ensure you are getting the resolution you need.
Measures the voltage on the specified channel of the voltmeter and verifies it is within the specified limits. This test is useful for verifying supply rails during the test.
Test Name: The name of the test. This must be unique and should be something meaningful to you as you will see this name reflected in the logs
Channel: Specifies the DVM channel to make the measurement. On the QA351, valid channel numbers are 0 (Main) and 1 (Aux).
Minimum Voltage to Pass (V): The minimum voltage, in volts, required in order to pass the test.
Maximum Voltage to Pass (V): The maximum voltage, in volts, required in order to pass the test.