# How to emulate a signal?
**URL:** https://community.homey.app/t/how-to-emulate-a-signal/10360
**Category:** Questions & Help
**Created:** [March 10, 2019, 9:24am UTC](https://community.homey.app/t/how-to-emulate-a-signal/10360 "2019-03-10T09:24:15Z")
**Posts on this page:** 3
**Page:** 1
### Author:  [@Mr\_Horizon](https://community.homey.app/u/Mr_Horizon)
#### Post date: [March 10, 2019, 9:24am UTC](https://community.homey.app/t/how-to-emulate-a-signal/10360/1 "2019-03-10T09:24:15Z")
Hi, using the homey developer feature to record a signal I have captured the signal of a remote on the 433MHz frequency. Result: a .vcd file. While I was able to have a look at the signal using gtkwave, I am struggling to change it into a format of raw timings that you can paste into the developer page and use as input to emulate the signal.
Any advice would be appreciated!
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### Author:  [@HarriedeGroot](https://community.homey.app/u/HarriedeGroot)
#### Post date: [March 10, 2019, 9:25am UTC](https://community.homey.app/t/how-to-emulate-a-signal/10360/2 "2019-03-10T09:25:50Z")
I made a tool for it: [https://github.com/harriedegroot/Athom-Homey-RF-Signal-Analyzer](https://github.com/harriedegroot/Athom-Homey-RF-Signal-Analyzer)
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### Author:  [@Mr\_Horizon](https://community.homey.app/u/Mr_Horizon)
#### Post date: [March 10, 2019, 9:27am UTC](https://community.homey.app/t/how-to-emulate-a-signal/10360/3 "2019-03-10T09:27:43Z")
Great! A very detailed explanation and approach! Thanks, something I will have to study a bit 😊