1 The CTT Locator

The CTT Locator is a portal device that can receive a variety of wildlife tag signals. It is compatible with the entire radio tag line, including ES200 devices.

2 Getting Started

2.1 In the Box

  • Yagi Antenna
  • BNC to SMA coaxial adapter
  • SMA coaxial cable
  • CTT Locator with integrated Lithium Polymer battery and USB charger port

2.2 You will need

  • Any smart device with a web browser (Mozilla Firefox or Google Chrome recommended) and WiFi capability (Android, iPhone, iPad, Laptop, etc)
  • USB AC adapter or laptop to charge your CTT Locator
  • Micro USB cable (Commonly called an Android charger cable)

3 Prior to Assembly and Use

Connect a Micro USB cable to the USB port on the CTT Locator. The USB port is located at the side of the device next to the power switch. This will start the charging process and top off the battery. The battery is fully charged when the red indicator light goes out and the blue light comes on. This can take several hours.

4 Tips Regarding CTT Locator’s Battery

The locator features a lithium battery and does not have any memory effects. You can fully discharge the locator, charge the locator partially, keep it always connected to a charger, or even make use of an external battery pack (such as the type that charge cell phones).

That being said, it is important not to leave the CTT Locator’s power switch on with a completely dead battery for long periods of time. This will eventually damage the battery and shorten its operating life.

Charging will be fastest when the device is switched to the “Off” position. The device can be used in the “On” position while connected to a charger, but it may take twice as long. If you wish to run the CTT Locator for very long periods of time, it is okay to leave the unit on and connected to a charger. However, you may notice the red and blue charge LED flicker when charging is complete.

For safety during transport, the battery is at a half charged state. While you can use the CTT Locator without fully charging the battery, you will not experience the full battery life until the unit is fully charged.

5 Assembly Instructions

Unpack the hand held yagi antenna from the packaging.

To assemble the antenna look at the diagram below. Pair the antenna sections by size, note that antenna elements will become longer incrementally as they approach the handle and that the coaxial connection is the second element from the handle. Screw them together like the diagram below.

Yagi Antenna

Unpack the BNC to SMA adapter and twist the adapter onto the antenna BNC connector.

Connect the SMA coax from the BNC to SMA adapter to the CTT Locator, making sure that all the connections are hand tight. Do not overtighten using any tools, as this could damage the antenna connectors.

Locator Setup

Unscrew the black hand nut and place the bolt through the hole next to the foam handle. Attach and tighten the black hand nut. Please not not overtighten the nut.

You may also attach your phone to the built in phone clip. Note that while the phone clip is sturdy, it may not properly hold your phone in all use cases. It is possible that some models of phones or operating conditions may cause the phone to fall out of the clip. Your phone may also be damaged if you inadvertently drop the locator antenna on the ground or in water. Use at your own risk.

6 Locator Buttons and Indications

Locator Diagram

7 Powering on the Locator

  1. To power on the Locator, press the switch to on. A blue light will immediately shine, indicating the Locator has power. After a short bootup sequence, the Locator will create a hotspot for your phone to connect to. Due to technical limitations, Android phones will need to turn off Cellular Data. This is not required on iPhone devices. In addition to phones, the Locator can be used with laptops, tablets, and other modern devices.

When the blue light flashes, the Locator is in its final stages of booting. It will be ready in about 15 seconds after this indication.

  1. Connect to a WiFi network created by the Locator.

  2. Enter this full url into the browser. Note that the https:// is important:


In a few moments, a webpage will load and show the main locator screen.

8 Parts of the CTT Locator

Indicator Light Meaning
Power and Low Battery Indicator Blue: The unit is turned on
Yellow Flash: The unit has a low battery
Dark: Off, No power is applied, dead battery, or when first switched on
Tag Detection Indicator Red Flash: tag signal received and detected
Charging Indicator Blue: Battery charged
Red: Battery charging
Port or Switch Usage
Power Switch Toggle switch to the left to turn the unit on. Wait a few seconds before usage.
USB Charging Port Connect micro-USB cord to any computer USB port or USB wall wart to charge.
SMA Coax Connector Connect the supplied coaxial cable to this port and the antenna connector on the back of the antenna. You will need to make use of the BNC to SMA adapter on the antenna.
Button A and Button B For use with a future version of software or when instructed by CTT’s support team. It is okay to inadvertently press these buttons.

9 Screen Overview

When you load the Locator screen, an interface will appear. You can change the various modes of the locator by clicking on the icons at the bottom.

First, we will go over the title bar:

The circle on the right will flash red when a tag is detected. A rotating circle animation indicates that the locator is actively connected to the phone. The far right icon indicates battery life, and contains the voltage. Approximately 4.10 volts is a full battery, 3.7 volts is half full, and 3.4 volts is empty. This will also be indicated by the battery slowly reducing, similar to your smart phone.

Next we will go over the icons at the bottom: