ITU Radiocommunication Study Group 5
Terrestrial services
Systems and networks for fixed, mobile, radiodetermination, amateur and amateur-satellite services.
Structure
Working Party 5A
(WP 5A)
Land mobile service above 30 MHz* (excluding IMT); wireless access in the fixed service; amateur and amateur-satellite services
including the exact frequency of 30 MHz
Working Party 5B
(WP 5B)
Maritime mobile service including Global Maritime Distress and Safety System (GMDSS); aeronautical mobile service and radiodetermination service
Working Party 5C
(WP 5C)
Fixed wireless systems; HF and other systems below 30 MHz in the fixed and land mobile services
Working Party 5D
(WP 5D)
IMT Systems
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