# Pair Trackers If all your Trackers already appear online in **Device**, skip this page. Pairing is for a new or replacement Tracker, or for fixing a Tracker that needs a different channel. Keep the Excap Link 2.4G Dongle connected to the PC during pairing. The app connects each Tracker to the PC by USB, one at a time. ## Choose the right pairing mode 1. Open **Device** and right-click an empty part of the page. 2. Choose **Wire Pair Trackers**. 3. Read the three choices before pressing **Next**.
[![Wire Pair mode selection; Re-pair All is the app default. Scripted UI, no pairing performed.](https://wiki.elecholic.tech/uploads/images/gallery/2026-10/scaled-1680-/img-044-webp.webp)](https://wiki.elecholic.tech/uploads/images/gallery/2026-10/scaled-1680-/img-044-webp.webp)
Wire Pair mode selection; Re-pair All is the app default. Scripted UI, no pairing performed. · Open image at original size.
- **Add New** keeps existing Trackers and their IDs. Choose this when adding or replacing Trackers. It uses the Dongle's current channel and assigns an unused ID from 1 to 14. - **Channel Only** keeps every Tracker ID and changes the channel. Use it only when you intend to move the Dongle and the Trackers you connect through this flow to another channel. Trackers left on another channel will not connect. - **Re-pair All** clears all Tracker records from Excap and assigns IDs again starting at 1. Use this only when you mean to rebuild the whole set. You must pair every Tracker again, bind them again, and redo pose calibration afterward. **For a normal new or replacement Tracker, choose Add New.** Re-pair All is selected when the dialog first opens, so check the choice before continuing. ## Pick a channel when asked **Re-pair All** and **Channel Only** open the channel step. Choose **Player Channel A**, **B**, or **C**. The selected channel is used by the Dongle and each Tracker you pair. Trackers left on a different channel will not connect. **Add New** skips this step and uses the Dongle's current channel.
[![Wire Pair channel selection example for Re-pair All. Scripted UI, no dongle or tracker changed.](https://wiki.elecholic.tech/uploads/images/gallery/2026-10/scaled-1680-/img-045-webp.webp)](https://wiki.elecholic.tech/uploads/images/gallery/2026-10/scaled-1680-/img-045-webp.webp)
Wire Pair channel selection example for Re-pair All. Scripted UI, no dongle or tracker changed. · Open image at original size.
## Connect and pair each Tracker 1. Click **Next** to start scanning. 2. Connect one Tracker to the PC with its USB data cable. Keep the Dongle connected too. 3. Wait for the app to read the Tracker ID and channel. 4. Check the ID shown by the app. With **Add New**, leave the recommended unused ID selected unless you have a reason to choose another free ID. 5. Click **Pair this tracker** and wait for the success message. 6. Unplug that Tracker, then click **Pair next tracker** to connect another one. Repeat until every Tracker you intend to pair is listed. 7. Click **Finish & Exit**, review the summary, then click **Done**.
[![Add New pairing mode selected. Scripted UI, no USB Tracker connected.](https://wiki.elecholic.tech/uploads/images/gallery/2026-10/scaled-1680-/img-046-webp.webp)](https://wiki.elecholic.tech/uploads/images/gallery/2026-10/scaled-1680-/img-046-webp.webp)
Add New pairing mode selected. Scripted UI, no USB Tracker connected. · Open image at original size.
If no Tracker is found within two minutes, check that the Dongle is online, connect the Tracker directly to the PC with a data-capable USB cable, and click **Retry**. If pairing fails while another program is using the USB serial port, close that program and try again. After pairing, return to **Device** and check that the Tracker appears online. If you used **Re-pair All**, run [Auto Joint Binding](https://wiki.elecholic.tech/books/excap-beginner-guide/page/device-shortcuts-and-joint-binding) again and redo **Natural Standing** and **Skiing Pose**.