| Subject | English | Portuguese |
| nat.sc., transp. | Automatic Direction Finding | busca automática de direção |
| transp., polit. | automatic direction finding equipment | equipamento de radiogoniometria automática |
| commun. | automatic direction-finding | radiogoniometria automática |
| transp., avia. | direction finding approach procedure | procedimento de aproximação com DF |
| transp. | direction finding compass | agulha |
| transp. | direction finding compass | bússola de navegação |
| transp. | direction finding compass | agulha de marear |
| life.sc. | direction finding compass | bússola de orientação com lente amplificadora |
| commun., transp. | direction finding coupler | acoplador de feixe de rádio |
| transp. | direction finding guidance | direção DF |
| commun., IT | direction finding network | rede radiogoniométrica |
| IT, el. | direction-finding | radiogoniometria |
| commun. | direction-finding bearing | marcação de radiogoniometria |
| transp. | direction-finding compass | bússola |
| transp., polit. | direction-finding equipment | equipamento de radiogoniometria |
| commun., IT | direction-finding measurement | medição radiogoniométrica |
| IT | direction-finding network | rede radiogoniométrica |
| commun., IT | direction-finding receiver | recetor de radiogoniometria |
| commun. | direction-finding signal null | radiogoniometria por anulação de sinal |
| commun. | dual-channel visual direction finding | radiogoniometria visual de canal duplo |
| gen. | Lightweight Man-Transportable Radio Direction Finding System | sistema de orientação por rádio portátil |
| commun. | maximum signal direction finding | radiogoniometria por maximização do sinal |
| IT, el. | radio direction finding | radiogoniometria |
| commer., transp., nautic. | radio direction finding navigation | navegação radiogoniométrica |
| radio | radio direction-finding | radiogoniometria |
| commun. | radio direction-finding apparatus | radiogoniómetro |
| commun. | radio direction-finding service | serviço de radiogoniometria |
| commun. | radio direction-finding station | estação radiogoniométrica |
| commun. | radio direction-finding station | estaçao radiogoniométrica |
| el. | range and direction finding radar apparatus | radar de telemetria |