Mobile RF hardware should be serviceable without changing unrelated RF paths. Define access envelope, connector reach, cable removal and support, drainage, torque witness, inspection points, firmware loading, diagnostic ports, built-in test, calibration needs and maximum replace time. State which items are line replaceable and which antenna, cable, bond, thermal interface or alignment checks are required after removal and installation.
The delivered evidence set should identify article serial, hardware and firmware revision, BOM, antenna and coax assembly, route and mounting drawing, power and bond configuration, approved procedures, raw acceptance data, instrument calibration, uncertainty, anomalies, waivers and open actions. Include maintenance instructions, inspection and wear limits, spares, storage and shelf-life controls, connector and cable handling, calibration interval and fault-isolation records.
Place antenna, cable, connector, protection, filter, RF module, power device, firmware, enclosure, mount and supplier substitutions under change control. Assess impact on RF budgets, thermal path, EMC, environment, service procedure and prior evidence before release. Record which serials and installations are affected and repeat the necessary inspection, analysis or test. Form, fit and function alone do not preserve installed RF behavior.