Signal FAQs - Fleet 3
What is Axon Signal?
Axon Signal is a technology that lets your Axon devices detect nearby events as well as in-car conditions to log information or start recording. This lets you focus on the situation at hand. Fleet 3 includes several Signal capabilities at no extra cost.
Does Fleet 3 support Axon Signal?
Yes. Fleet 3 supports Axon Signal to activate cameras. Fleet 3 includes new features to save contextual information for investigations and display during video playback (video overlays).
How does Fleet 3 start recording automatically?
12V status
Fleet 3 has ten 12V inputs that it uses to detect status changes from any compatible trigger, such as door open, light bar on, sirens on, gun lock unlocked, or any other 0–12V transition signal. Fleet 3 is compatible with all Fleet 1 and 2 12V triggers. Configure a total of 10 discrete 12V inputs as triggers and indicators.
Motion
Fleet 3 uses a 3-axis accelerometer in the hub to detect extreme change in velocity forces common to car accidents. Axon completed hard brake testing with actual hubs to determine this threshold.
Speed threshold
Cameras will activate above a configurable speed threshold. Speed is measured with a GNSS unit in the hub and can determine speed even when satellites are briefly unavailable.
Signal broadcast
Fleet 3 can detect BLE broadcasts from Axon Signal-enabled devices. Triggers can include:
- Unholstering a firearm from an Signal Sidearm (SSA) equipped holster
- Arming, arcing, or firing a TASER 7, X2, or SPPM-equipped TASER device
- Triggering an Axon Signal Vehicle unit.
What contextual information does Fleet 3 save?
Fleet 3 videos retain the following data points:
- Speed detected by the GNSS sensor
- Recording reason and officer
- Status of connected 12V triggers, such as brake status, light bar status, siren status, and door open/closed.
How can I review contextual information saved in my Fleet 3 evidence?
Contextual information saved in the evidence can be viewed in a few places:
- Brakes, lights, sirens, and speed are saved continuously in video evidence. View it using a video’s overlay option in the Evidence.com video viewer. This will show the status of the patrol vehicle in realtime.
- Use the same overlay option to view recording reason, officer, and vehicle.
- GNSS data is located in a panel to the right of the video viewer.
- 12V trigger status changes are saved in the device audit trail.
Does Fleet 3 require an Axon Signal Vehicle (ASV) device to activate?
No. Fleet 3 uses the ASV to activate Axon body cameras. After a firmware upgrade, an existing ASV can be reused with your Fleet 3 system.
Can my Axon body camera trigger Fleet 3 to start recording?
No. Start a Fleet 3 recording using:
- The Dashboard app
- Buttons on the Dual-View camera
- The button on the wireless microphone
- Any of the automated activation triggers configured for the vehicle.
Can Fleet 3 activate or deactivate based on entering or exiting a geofence?
No, this capability is not yet available.
What cameras can Fleet 3 activate using Signal?
Configure Fleet 3 to activate any cameras connected to the hub by ethernet cable and any Axon body cameras in BLE range.
Can I configure different camera activation behavior for different vehicles?
No, this capability is not yet available.
Can I configure different vehicles with different 12V inputs?
Yes. While there is one Signal configuration for your entire agency, each of the ten 12V inputs can be wired uniquely by vehicle.
Can I add a human readable label to 12V inputs?
Yes. There are a number of different labels included for typical inputs:
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How do I configure Signal?
- Determine which cameras you want to activate
- Determine which triggers you will use, including 12V inputs, CEWs, Signal Sidearm, speed threshold, and/or impact detection.
- In Evidence.com, go to Admin > Signal > Fleet 3 and review or adjust your settings. Admins can refer to Signal Configuration for details about this page.
I'm upgrading from Fleet 1 or 2. Do I need to configure Signal settings again?
Yes, you'll need to set Signal settings for Fleet 3 (see link above). Existing Signal settings for Axon Signal Vehicle will still apply to Fleet 1, 2, and body cameras.
General FAQs ï this topic ð Axon Respond FAQs
Last modified - 28 April 2026
