Enable on-EUD scanning for RIDAR


RIDAR can use the EUD itself as a sensor, picking up Remote ID broadcasts over BLE, 2.4 and 5 GHz Wi-Fi, and cellular. These settings only need to be applied once per phone.

Most drones broadcast over BLE, which works as soon as Bluetooth and Location are on. The Wi-Fi steps below unlock the rest.

1. Turn on Live RF in RIDAR

  • Set Live RF (EUD) to ON — tap the EUD chip until it turns green.

2. Grant permissions

Settings → Apps → ATAK → Permissions

  • Location → Allow → Precise. This is the master permission. Without it, BLE, Wi-Fi, and cellular scanning all return nothing.
  • Nearby devices → Allow. Required for Bluetooth and Wi-Fi scanning on Android 12 and newer.

3. Turn the radios on

Quick Settings

  • Bluetooth — ON
  • Wi-Fi — ON. It can stay connected to a network.
  • Location — ON. Android returns no BLE or Wi-Fi results while the system Location switch is off, even when the permission has been granted.

4. Unlock full-rate Wi-Fi scanning

  1. Enable Developer options — Settings → About phone → tap Build number seven times.
  2. Turn Wi-Fi scan throttling OFF — Settings → System → Developer options.

This is the step most operators miss. Left on, throttling caps Wi-Fi to roughly one sweep every 30 seconds. Turned off, Wi-Fi Remote ID runs at full rate — about 8 seconds. It has no effect on Bluetooth, which scans continuously either way.

5. Keep it scanning with the screen off

  • Set ATAK battery to Unrestricted — Settings → Apps → ATAK → Battery.

Device hardware

These depend on the phone and cannot be toggled:

  • BLE 5 Long Range — enabled automatically where supported.
  • Wi-Fi Aware — skipped if the device does not have it.
  • Cellular — requires telephony hardware.

A modern flagship will support all three. A paired RIDAR sensor still beats any phone on range.