What maintenance function may the holder of a GMDSS Radio Operator license perform, or supervise the performance of, on an Inmarsat-C SES?

What maintenance function may the holder of a GMDSS Radio Operator license perform, or supervise the performance of, on an Inmarsat-C SES?

• A. Painting the antenna dome.
• B. Adjust the station's EIRP.
• C. Adjust any front panel controls.
• D. Adjust a reference oscillator or synthesizer.

Answer: (C)

The correct answer regarding the maintenance functions allowed for a holder of a GMDSS Radio Operator license on an Inmarsat-C SES focuses on the adjustment of front panel controls. This capability is important since front panel controls often relate to the operation and configuration settings of the terminal, which can include aspects like volume adjustment, signal strength, and operating modes. Allowing a licensed operator to make minor adjustments ensures that they can effectively manage the equipment for safe and efficient communication. The other options represent functions that go beyond the scope of what a GMDSS Radio Operator is permitted to do. Painting the antenna dome, for instance, relates more to physical maintenance or aesthetics rather than operational adjustments. Adjusting the station's EIRP (Effective Isotropic Radiated Power) involves deeper technical calibrations that can affect the communication efficacy and are typically reserved for qualified service technicians. Similarly, adjusting a reference oscillator or synthesizer requires specialized knowledge that exceeds the general operational training provided to a Radio Operator. These tasks could potentially impact the overall performance of the communication system, hence they are appropriately restricted to those with advanced qualifications.

The correct answer regarding the maintenance functions allowed for a holder of a GMDSS Radio Operator license on an Inmarsat-C SES focuses on the adjustment of front panel controls. This capability is important since front panel controls often relate to the operation and configuration settings of the terminal, which can include aspects like volume adjustment, signal strength, and operating modes. Allowing a licensed operator to make minor adjustments ensures that they can effectively manage the equipment for safe and efficient communication.

The other options represent functions that go beyond the scope of what a GMDSS Radio Operator is permitted to do. Painting the antenna dome, for instance, relates more to physical maintenance or aesthetics rather than operational adjustments. Adjusting the station's EIRP (Effective Isotropic Radiated Power) involves deeper technical calibrations that can affect the communication efficacy and are typically reserved for qualified service technicians. Similarly, adjusting a reference oscillator or synthesizer requires specialized knowledge that exceeds the general operational training provided to a Radio Operator. These tasks could potentially impact the overall performance of the communication system, hence they are appropriately restricted to those with advanced qualifications.