# Automated Amp Freq Response plot question **URL:** \ **Category:** QA40x\ **Created:** [August 1, 2021, 12:19am UTC](https://forum.quantasylum.com/t/automated-amp-freq-response-plot-question/414 "2021-08-01T00:19:27Z")\ **Posts on this page:** 12\ **Page:** 1
**Author:** ![VAR](https://yyz2.discourse-cdn.com/flex032/user_avatar/forum.quantasylum.com/var/32/959_2.png) [@VAR](https://forum.quantasylum.com/u/VAR)\ **Post date:** [August 1, 2021, 12:19am UTC](https://forum.quantasylum.com/t/automated-amp-freq-response-plot-question/414/1 "2021-08-01T00:19:27Z")
I am wondering if I am doing something wrong when doing an automated Amp Freq Response plot on an integrated amp. Here are the settings: ![autofrsettings](https://canada1.discourse-cdn.com/flex032/uploads/quantasylum/original/1X/0044d3cb62d7926b08addd60e0b7c6af557ab30d.jpeg) Here is the plot I got after setting the axes: ![automated fr](https://canada1.discourse-cdn.com/flex032/uploads/quantasylum/original/1X/eb05aa37c22ad88caf283bcb3c6492c694ef6929.jpeg) I have 2 questions: 1. Is there a way to label each trace for the different input power levels- it was not apparent to me? 2. How do you get rid of “Pen not going up” trace is what I would call it. Back in the days of pen plotters like the HP7470A you needed to send a “Pen Up” command to the plotter when you were done plotting a trace… Thanks, ---
**Author:** ![matt](https://avatars.discourse-cdn.com/v4/letter/m/a6a055/32.png) [@matt](https://forum.quantasylum.com/u/matt)\ **Post date:** [August 1, 2021, 3:18pm UTC](https://forum.quantasylum.com/t/automated-amp-freq-response-plot-question/414/2 "2021-08-01T15:18:15Z")
Hi @VAR, that’s a bug I just repro’d too. 1. To label a trace you make the trace you want to change the current trace, and then you do Trace-\>Rename Trace 2. Bug as noted above, will fix for next release ---
**Author:** ![VAR](https://yyz2.discourse-cdn.com/flex032/user_avatar/forum.quantasylum.com/var/32/959_2.png) [@VAR](https://forum.quantasylum.com/u/VAR)\ **Post date:** [August 1, 2021, 6:58pm UTC](https://forum.quantasylum.com/t/automated-amp-freq-response-plot-question/414/3 "2021-08-01T18:58:32Z")
Thanks Matt. However, It will only let me rename one of the traces, it does not appear to know there are two of them so I cannot differentiate which trace is at which input power level. Is that part of the bug ? ---
**Author:** ![SABristol](https://yyz2.discourse-cdn.com/flex032/user_avatar/forum.quantasylum.com/sabristol/32/380_2.png) [@SABristol](https://forum.quantasylum.com/u/SABristol)\ **Post date:** [August 2, 2021, 10:13am UTC](https://forum.quantasylum.com/t/automated-amp-freq-response-plot-question/414/4 "2021-08-02T10:13:43Z")
@VAR your reference to the HP GL “Pen Up” command made me smile. I knew exactly what you meant. We had a number of HP-7220C in our control systems lab in the early 80s and I remember making that very error - on more than one occasion. Install a new set of pens and a sheet of quality white paper and it was a pleasure to watch it plot. ![7220C-37](https://canada1.discourse-cdn.com/flex032/uploads/quantasylum/original/1X/df47b2d80aad93e70c66fd6c91d9b95deb0ec987.jpeg) ---
**Author:** ![matt](https://avatars.discourse-cdn.com/v4/letter/m/a6a055/32.png) [@matt](https://forum.quantasylum.com/u/matt)\ **Post date:** [August 2, 2021, 2:53pm UTC](https://forum.quantasylum.com/t/automated-amp-freq-response-plot-question/414/5 "2021-08-02T14:53:49Z")
> [@VAR](#): > > , it does not appear to know there are two of them so I cannot differentiate which trace is at which input power level. Is that part of the bug ? Yes, that’s part of the bug. The lack of “pen up” that you note is the two traces being merged into one. Hopefully this week the new release posts. ---
**Author:** ![VAR](https://yyz2.discourse-cdn.com/flex032/user_avatar/forum.quantasylum.com/var/32/959_2.png) [@VAR](https://forum.quantasylum.com/u/VAR)\ **Post date:** [August 2, 2021, 3:30pm UTC](https://forum.quantasylum.com/t/automated-amp-freq-response-plot-question/414/6 "2021-08-02T15:30:15Z")
Thanks Matt. Built my speaker impedance test cables so trying them out is today’s fun… ---
**Author:** ![VAR](https://yyz2.discourse-cdn.com/flex032/user_avatar/forum.quantasylum.com/var/32/959_2.png) [@VAR](https://forum.quantasylum.com/u/VAR)\ **Post date:** [August 2, 2021, 3:37pm UTC](https://forum.quantasylum.com/t/automated-amp-freq-response-plot-question/414/7 "2021-08-02T15:37:50Z")
I am glad to know I am not the only guy here who knew what I was talking about. I never had to pleasure of using the 722c, but did use the 6pen 7475a. They were pretty slick- using a static system to hold down the paper. Having the pens run out of ink or get dull was common place. I started out programming with the HP9825 instrument controllers- those were so cool back then. ---
**Author:** ![matt](https://avatars.discourse-cdn.com/v4/letter/m/a6a055/32.png) [@matt](https://forum.quantasylum.com/u/matt)\ **Post date:** [August 6, 2021, 6:11pm UTC](https://forum.quantasylum.com/t/automated-amp-freq-response-plot-question/414/8 "2021-08-06T18:11:02Z")
Hi @VAR, 0.998 was just posted [HERE](https://github.com/QuantAsylum/QA402/releases/tag/0.998) which should fix this. ![image](https://canada1.discourse-cdn.com/flex032/uploads/quantasylum/original/1X/91b31c4847f35791a249e4ebccd6f32fbd11ff9f.png) ---
**Author:** ![VAR](https://yyz2.discourse-cdn.com/flex032/user_avatar/forum.quantasylum.com/var/32/959_2.png) [@VAR](https://forum.quantasylum.com/u/VAR)\ **Post date:** [August 6, 2021, 7:39pm UTC](https://forum.quantasylum.com/t/automated-amp-freq-response-plot-question/414/9 "2021-08-06T19:39:37Z")
That is good news. Will download and install shortly 😁 ---
**Author:** ![VAR](https://yyz2.discourse-cdn.com/flex032/user_avatar/forum.quantasylum.com/var/32/959_2.png) [@VAR](https://forum.quantasylum.com/u/VAR)\ **Post date:** [August 6, 2021, 7:50pm UTC](https://forum.quantasylum.com/t/automated-amp-freq-response-plot-question/414/10 "2021-08-06T19:50:42Z")
Matt- thanks again for the way you support this product, and it has provided me with a lot of enjoyment, and will continue to do so I am sure. I think the main thing that is missing for me, at least, are not having are markers for the EXPO Chirp FR- is that something that is in the works or not that easy to do ? Scott ---
**Author:** ![matt](https://avatars.discourse-cdn.com/v4/letter/m/a6a055/32.png) [@matt](https://forum.quantasylum.com/u/matt)\ **Post date:** [August 9, 2021, 3:56pm UTC](https://forum.quantasylum.com/t/automated-amp-freq-response-plot-question/414/11 "2021-08-09T15:56:08Z")
Hi @VAR, Yes, the cursor code has been prototyped for the graph tool (see below), and needs to be merged in with a few changes. In short, you will have the ability to turn on Cursor 1 and Cursor 2 independently, drag as needed, and if both are on you will see the delta between C1 and C2 (like most spice programs). I don’t know the exact timeline, but it’s coming. ![image](https://canada1.discourse-cdn.com/flex032/uploads/quantasylum/original/1X/d8f8312e1b7f504116132b28dd118589f134613f.png) ---
**Author:** ![VAR](https://yyz2.discourse-cdn.com/flex032/user_avatar/forum.quantasylum.com/var/32/959_2.png) [@VAR](https://forum.quantasylum.com/u/VAR)\ **Post date:** [August 9, 2021, 5:11pm UTC](https://forum.quantasylum.com/t/automated-amp-freq-response-plot-question/414/12 "2021-08-09T17:11:29Z")
That is good news, Matt. The example you show above has just a delta X being shown and no delta Y- I assume there would be both delta X and Y. Also you mention that it is part of the Graph Tool- will we be able to at least set Markers when in the Expo Chirp FR mode ? That would be a nice holiday present 🙂