# Part 6 - Automatically Respond to a Message

In addition to manual and periodic transmission, Vehicle Spy is also capable of automatically responding to a message.

### 1. Set Tx Message Back to Manual Mode:

To remove the 0.1 periodic transmission mode, simply set the **Rate** column back to **None** (Figure 1: ![](https://cdn.intrepidcs.net/support/VehicleSpy/assets/smOne.gif)) for Practice Tx Message.

![Figure 1: Change transmit message from periodic back to manual mode.](https://2280262322-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FC3KyOmcYmM6ZVd3OQDa1%2Fuploads%2FYZON9x0PeNCZYXUhRI51%2Fspyexample2.6.1.gif?alt=media\&token=600a7aa2-52ef-4f69-a29c-86b1424ea7f0)

### 2. Open Messages Editor Receive Table:

Open the Messages Editor using the tabs for your main workspace. Notice that a message called **Test Message** has already been set up in the Receive table for use in this exercise.

### 3. Setup an Auto Response:

Using the spreadsheet view, double click on the **Tx Msg** column for the Test Message (Figure 2). A dropdown of defined Tx messages opens. In this case, just Practice Tx Message is present but if more transmit messages were defined, they would also appear here. Select **Practice Tx Message** and press **Enter**. Vehicle Spy has been told to automatically send Practice Tx Message every time it receives Test Message.

![Figure 2: Set up Practice Tx Message to automatically transmit each time Test Message is received.](https://2280262322-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FC3KyOmcYmM6ZVd3OQDa1%2Fuploads%2FH4nzBrySyTjub8M83UTl%2Fspyexample2.6.2.gif?alt=media\&token=683d135b-16e1-43c4-91af-63ebe53d9d52)

### 4. Examine Message Traffic:

Switching back to Messages view, observe that for every occurrence of Test Message, Vehicle Spy responds with a transmission of Practice TX Message. (This will be easier to view in scroll mode, but you may have to press **Pause**.) The Messages view should look similar to the one below (Figure 3: ![](https://cdn.intrepidcs.net/support/VehicleSpy/assets/smOne.gif), ![](https://cdn.intrepidcs.net/support/VehicleSpy/assets/smTwo.gif)).

![Figure 3: Use Pause in Scroll mode to help see Practice TX Message automatically responding to Test Message.](https://2280262322-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FC3KyOmcYmM6ZVd3OQDa1%2Fuploads%2Feac2BjC3v6RlTDWlufsn%2Fspyexample2.6.3.gif?alt=media\&token=c2a405ab-fcbc-4de9-8a43-ff784269b14a)

**Extra Credit:** For extra practice, set up a custom filter to include both Test Message and Practice TX Message. Try doing this by using column filters.