[电] spaced-antenna direction finder

kōng jiān tiān xiàn fāng xiàng zhǎo xún qì ㄎㄨㄥ ㄐㄧㄢ ㄊㄧㄢ ㄒㄧㄢˋ ㄈㄤ ㄒㄧㄤˋ ㄓㄠˇ ㄒㄩㄣˊ ㄑㄧˋ