What can I use as a control head?

For certified aircraft, uAvionix offers the AV-30-C (3-inch EFIS) as a control head option. For experimental aircraft, the uAvionix AV-20-E (2-inch MFD) or AV-30-E (3-inch EFIS) may be used. Other 3rd-party EFIS units that support transponder control functionality may also be used with tailBeaconX.