# Tractor **URL:** https://forum.quantasylum.com/c/tractor/12.md [Latest](https://forum.quantasylum.com/latest.md) · [Categories](https://forum.quantasylum.com/categories.md) --- ## [About the Tractor category](https://forum.quantasylum.com/t/about-the-tractor-category/31)
**Author:** [@matt](https://forum.quantasylum.com/u/matt)\ **Replies:** 0
Discussion related to the Tractor test software --- ## [Tractor Phase Measurement Test](https://forum.quantasylum.com/t/tractor-phase-measurement-test/1659)
**Author:** [@tkuzma](https://forum.quantasylum.com/u/tkuzma)\ **Replies:** 5\ **Last updated:** [August 12, 2026, 4:31pm UTC](https://forum.quantasylum.com/t/tractor-phase-measurement-test/1659 "2026-08-12T16:31:18Z")
Hey all, I’ve seen this topic come up before and I’ve run into several situations in production testing where I needed to measure the phase of of the DUT. Tractor never had this test, so I made my own. You can select th… --- ## [Pre-Analyser Gain in Tractor](https://forum.quantasylum.com/t/pre-analyser-gain-in-tractor/1381)
**Author:** [@passmedien](https://forum.quantasylum.com/u/passmedien)\ **Replies:** 1\ **Last updated:** [May 15, 2024, 1:26pm UTC](https://forum.quantasylum.com/t/pre-analyser-gain-in-tractor/1381 "2024-05-15T13:26:30Z")
Hi @matt I experienced another bug in Tractor. When I define a Pre-Analyser Gain and start the measurement it will faail without performing a measurement. The log says: Exception in QA40x.cs SetOffsets(): QA40x ca… --- ## [Tractor with QA403](https://forum.quantasylum.com/t/tractor-with-qa403/705)
**Author:** [@RobbN](https://forum.quantasylum.com/u/RobbN)\ **Replies:** 16\ **Last updated:** [May 13, 2024, 12:02pm UTC](https://forum.quantasylum.com/t/tractor-with-qa403/705 "2024-05-13T12:02:19Z")
Was considering exploring the functionality of Tractor, but all references are for the QA401 and there does not appear to have been any development or discussion of this recently. Does Tractor support the QA403 and is it… --- ## [Polarity Measurement in Tractor](https://forum.quantasylum.com/t/polarity-measurement-in-tractor/778)
**Author:** [@passmedien](https://forum.quantasylum.com/u/passmedien)\ **Replies:** 3\ **Last updated:** [March 3, 2024, 3:34pm UTC](https://forum.quantasylum.com/t/polarity-measurement-in-tractor/778 "2024-03-03T15:34:43Z")
I like to do a polarity measurement of a multichannel amp with tractor to be sure all cabeling is right. Is there a way to perform this measurement? Thanks --- ## [Measuring Amplifier for 2-Way Speaker with Tractor](https://forum.quantasylum.com/t/measuring-amplifier-for-2-way-speaker-with-tractor/1133)
**Author:** [@passmedien](https://forum.quantasylum.com/u/passmedien)\ **Replies:** 4\ **Last updated:** [December 12, 2023, 11:46am UTC](https://forum.quantasylum.com/t/measuring-amplifier-for-2-way-speaker-with-tractor/1133 "2023-12-12T11:46:57Z")
Hi, I try to make a test setup measuring an amplifier with 1 input, integrated DSP and outputs with diffrent EQs for a 2-way speaker. Because of the diffrent EQs I need diffrent masks for both channels, so I have to mea… --- ## [Question about Noise Floor](https://forum.quantasylum.com/t/question-about-noise-floor/896)
**Author:** [@Vinylitic](https://forum.quantasylum.com/u/Vinylitic)\ **Replies:** 2\ **Last updated:** [May 20, 2023, 12:37am UTC](https://forum.quantasylum.com/t/question-about-noise-floor/896 "2023-05-20T00:37:12Z")
Hello… I have a question that is not specially hardware related, but more so about amplifier measurement… Please forgive if the question is inappropriate. The question is about “Noise Floor”… Is a pre-amp noise floor of… --- ## [Question about saving Tractor Data](https://forum.quantasylum.com/t/question-about-saving-tractor-data/805)
**Author:** [@VAR](https://forum.quantasylum.com/u/VAR)\ **Replies:** 29\ **Last updated:** [March 29, 2023, 5:10pm UTC](https://forum.quantasylum.com/t/question-about-saving-tractor-data/805 "2023-03-29T17:10:35Z")
I was thinking about starting to use Tractor to make it easier to run tests on amplifiers, but want to have the actual data and not a “Pass/Fail” result. For example, on a power amp, have the operator (me) set it up for … --- ## ["Method not Found" error during frequency response measurement](https://forum.quantasylum.com/t/method-not-found-error-during-frequency-response-measurement/266)
**Author:** [@john\_eae](https://forum.quantasylum.com/u/john_eae)\ **Replies:** 1\ **Last updated:** [February 20, 2021, 8:28pm UTC](https://forum.quantasylum.com/t/method-not-found-error-during-frequency-response-measurement/266 "2021-02-20T20:28:03Z")
Hello! First post on the forum. Been using a QA401 as a development tool for the last year and am very pleased with it. I am now beginning to use it as a production tool via Tractor but I am having some problems. Curren… --- ## [Running Tests fail: "Method not found"](https://forum.quantasylum.com/t/running-tests-fail-method-not-found/122)
**Author:** [@niedal](https://forum.quantasylum.com/u/niedal)\ **Replies:** 4\ **Last updated:** [June 19, 2020, 4:52pm UTC](https://forum.quantasylum.com/t/running-tests-fail-method-not-found/122 "2020-06-19T16:52:54Z")
Just tried to run a first batch of tests. Unfortunately, the tests fail, the log file says Method not found: ‘Void Com.QuantAsylum.QA401Interface.SetDisplayTraces(Boolean, Boolean)’. Tractor version 1.0 freshly install… --- ## [Tractor Test Summary](https://forum.quantasylum.com/t/tractor-test-summary/112)
**Author:** [@matt](https://forum.quantasylum.com/u/matt)\ **Replies:** 0\ **Last updated:** [June 10, 2020, 3:42am UTC](https://forum.quantasylum.com/t/tractor-test-summary/112 "2020-06-10T03:42:24Z")
Beginning with release 0.99, Tractor can self-generate documentation for the tests that are supported (run with -h option). The current list of these tests is located in the wiki linked below. Tractor release 1.0 posted… --- ## [Creating a Freq Resp Mask](https://forum.quantasylum.com/t/creating-a-freq-resp-mask/68)
**Author:** [@RickGeek](https://forum.quantasylum.com/u/RickGeek)\ **Replies:** 5\ **Last updated:** [June 10, 2020, 3:37am UTC](https://forum.quantasylum.com/t/creating-a-freq-resp-mask/68 "2020-06-10T03:37:17Z")
I want to add the FreqResponse test for my device. I see how to add a Mask file for the allowable range, but I don’t see how to generate a Mask file in Analyzer. When I’m in the Analyzer under the Test Plugins I can run… --- ## [Output from QA401 Left and Right independently](https://forum.quantasylum.com/t/output-from-qa401-left-and-right-independently/84)
**Author:** [@RickGeek](https://forum.quantasylum.com/u/RickGeek)\ **Replies:** 7\ **Last updated:** [May 18, 2020, 4:05pm UTC](https://forum.quantasylum.com/t/output-from-qa401-left-and-right-independently/84 "2020-05-18T16:05:45Z")
To make the quickest testing of our device, I want to connect different things to the left and right I/O of my QA401. The input is easily accommodated by specifying to measure left or right channel within the Tractor tes… --- ## [Mic Comparisons under Tractor](https://forum.quantasylum.com/t/mic-comparisons-under-tractor/46)
**Author:** [@matt](https://forum.quantasylum.com/u/matt)\ **Replies:** 0\ **Last updated:** [February 20, 2020, 10:34pm UTC](https://forum.quantasylum.com/t/mic-comparisons-under-tractor/46 "2020-02-20T22:34:42Z")
Tractor has a test called “MicCompareA01” that makes it easy to compare the difference between two mics, including phase, in a production setting. For QA401 release 1.903 and Tractor release 0.994, some changes are comin… --- ## [Distortion Pedal Testing](https://forum.quantasylum.com/t/distortion-pedal-testing/36)
**Author:** [@matt](https://forum.quantasylum.com/u/matt)\ **Replies:** 1\ **Last updated:** [January 15, 2020, 5:20pm UTC](https://forum.quantasylum.com/t/distortion-pedal-testing/36 "2020-01-15T17:20:09Z")
Part 1 This is a post to walk through the setup of an automated test for a guitar pedal. To start, we’ll aim for the following tests: Gain with pedal bypassed Pedal noise floor Gain with pedal active an all controls at… --- ## [Tractor interfacing with own hardware and software](https://forum.quantasylum.com/t/tractor-interfacing-with-own-hardware-and-software/30)
**Author:** [@honza](https://forum.quantasylum.com/u/honza)\ **Replies:** 1\ **Last updated:** [December 9, 2019, 12:36am UTC](https://forum.quantasylum.com/t/tractor-interfacing-with-own-hardware-and-software/30 "2019-12-09T00:36:11Z")
Hello, my name is Honza Juranek and I have just ordered QA401 for guitar pedal production testing. From my previous job I have experience with writing producion tests for some big automotive companies here in Europe - r…