To
From
Telecommunications Tower Technician 1
Core
National Wireless Safety Alliance
Telecommunications Tower Technician 2
Microwave Radio Technician
ETA International
Antenna and Line Specialty
Specialty
Foreman
Marine Radio Operator Permit
Product/Equipment
Federal Communications Commission
GMDSS Radio Operator License
Ship Radar Endorsement
Six Month Service Endorsement
GMDSS Radio Operator/Maintainer License