The Tune window is the very first window that appears on-screen when TvXplorer is first launched. At anytime you can select the Tune button at the far left top of TvXplorer and manually tune a channel.
The quickest method to automatically tune a channel is to enter an ATSC 3.0 channel in the input bar, leave the other settings default and select “Tune”. After you enter a channel number the tune dialog window will automatically close, and TvXplorer will begin populating the other windows with ATSC 3.0 broadcast measurements and data. Learn more about Manual PLP Tuning
![](https://redzonereceiver.tv/wp-content/uploads/2022/09/Tune-button.png)
The Tune Channel window is where you can automatically tune channels, manually tune PLP’s and Scan for all available ATSC 3.0 channels. Learn more about
Channel Scanning
![](https://redzonereceiver.tv/wp-content/uploads/2022/09/Tune-dialog-box.png)
Select the Tune button at the far left top of TvXplorer. Select “Scan” to automatically scan North America channels 2 thru 36. (Note: to scan channels 2 thru 69, or channels in India, change the Region in Preferences)
![](https://redzonereceiver.tv/wp-content/uploads/2022/09/Scanning.png)
When channel scan is complete, you will see a window showing how many channels were found, and these channels are stored in TvXplorer next to the channel number box
![](https://redzonereceiver.tv/wp-content/uploads/2022/09/scanning-results.png)
Scan channel results are saved to the right of the channel number box
![](https://redzonereceiver.tv/wp-content/uploads/2022/09/Scan-channels-saved.png)
Most ATSC 3.0 receivers can simultaneously tune four PLP’s, however sometimes there is a need to tune only one or more PLP’s. To manually tune a PLP, open the Tune button and select the checkbox marked “Manually select PLP’s” then enter the number 0, 1, 2 or 3 into the slots and select Tune. The first active PLP must use slot 0. Using a -1 in a slot means the physical slot will not be tuned. See example below.
![](https://redzonereceiver.tv/wp-content/uploads/2022/09/Manually-tune-PLP-2.png)