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Welcome to Century Avionics Lightspeed Tango troubleshooting site, please see below for help. If the below instructions do not resolve your headset trouble, please drop us an e-mail at [email protected] or [email protected].


Lightspeed Link is comprised of two wireless technologies: an analog signal carries the pilot’s voice to the intercom while a digital signal carries communication to the headset. This patent-pending blend of technologies avoids the drawbacks of other wireless platforms to deliver the clearest, most reliable wireless communication available in an aviation headset.

Bluetooth and WiFi signals travel too slowly and would produce an unacceptable echo effect in sidetone, negatively affecting clarity and the enjoyment of flight.

The Tango headset and panel interface are paired at the factory, so all you need to do is turn them on.

Yes, the LEMO / panel-powered version of the Tango panel interface does automatically turn on when aircraft power is sensed. The Tango headset, however, still operates on a battery and must be turned on manually.

The most likely cause is two or more headset/panel interface pairs set to the same channel. Make sure all headset/panel interface pairs are set to their own unique channel. See the Tango User Guide to learn about using multiple Tango headsets.

When you use the backup cable, all circuitry not essential to communication is disabled and the headset operates in passive noise reduction mode. Lightspeed engineers assumed the backup cable would only be used when wireless communication was unavailable. This is almost always due to a dead battery, but in case there is another cause, this feature prevents any additional anomalies that might distract the pilot.

Lithium ion batteries don’t exhibit the memory effects that Ni-Cad batteries used in older technology do. We recommend charging your battery before each flight, regardless of its state of depletion (just as you charge your phone at night).

It is best to store your battery in a partially discharged state. Storing in a fully charged state could slightly decrease the useful life of the battery.

Leaving the battery charging for extended periods of time (several weeks or months) could result in a slight reduction in its useful life. Leaving it charging for a few days will not likely have any negative effects.

The noise reduction capability of Tango is equal to or better than any competitive headset on the market.

If your ear is not entirely inside the cup, with a tight seal, air can seep in and cause the ANR to compensate for uneven internal cup pressure, creating a rapid oscillation in pressure that we experience as a warbling noise or rapid “thumping.” Make sure you have a proper fit and the ear seals are in good condition.

Try moving the Bluetooth source (phone or other device) to a location closer to the panel interface. Also, if your panel interface is inside a pocket or box, try placing it on the outside. We have included a steel mounting hook and multiple MOLLE loops to make it easy to find a convenient location.

You can think of microphone gain as a volume control for your microphone. Soft voices might benefit from an increase in gain in order to improve audibility and, in some cases, to break squelch; louder voices may need little to no gain increase. Equipping each headset with its own gain adjustment helps balance loud and soft voices in a multi-headset environment.

To adjust mic gain, remove the foam windscreen on your microphone and then remove the small cap next to the Lightspeed logo on our microphone to reveal the adjustment dial. Turning the adjustment dial clockwise will increase gain and turning it counterclockwise will decrease gain. A little adjustment goes a long way, so move the dial in small increments (think one-hour increments on a clock face) and test it in your aircraft. When you are satisfied with the adjustment, replace the cap and foam windscreen.

The serial number can be found on the headset and the panel interface inside the battery compartment. Look for a small, silver bar-coded sticker.

This is because the Euro Zone regulations allow for different available wireless frequencies than U.S. regulations. Find which version of the headset that is right for you here.

Powering off your headset does not automatically send Bluetooth disconnect command to the BT module in the headset and as a result Bluetooth loses its connection retention ability. To improve your Bluetooth auto-reconnect experience, turn off the Bluetooth on your headset (press Bluetooth button and hold until blinks red three times) then power off your headset. After turning on the headset, press and hold the Bluetooth button until you hear a high tone and the Bluetooth indicator LED flashes three BLUE pulses after which you should see in your mobile device change from “Not Connected” to “Connected” (in your mobile device Bluetooth menu). If reconnect still does not occur, manually reconnect via the mobile device Bluetooth menu.

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