Repair and installation of various transceivers (transmitters-receivers) in VHF, HF bands.

· Installation of various transceivers on aircraft and airports.

· Repair of various fixed, mobile, and handheld wireless devices, and all related equipment.

· Repair of various linear and switching power sources.

· Configuration of radio software components.

· Measurement, testing, and adjustment of radio power and antenna.

· Precise tuning of repeater duplexers.

· Training.

· Installation and replacement.

· Periodic inspection and servicing.