An amateur radio operator with Basic and Morse code qualifications may install an amateur radio station for another person:

Regardless of whether you hold a Basic, Morse code, or Advanced qualification, the core regulatory requirement for installing a station for another person remains the same: the other person must hold a valid Amateur Radio Operator Certificate. Your own certification grants you the technical privilege to do the work, but you cannot install a working transmitter for an unlicensed individual. Distractors related to power limits (like 100 watts or 200 watts) or specific frequency bands (like VHF) are irrelevant in this context. The regulation is strictly about the licensing status of the individuals involved, not the technical specifications of the equipment being installed.