dr. john p. hagen adjusting collins receiver or amplifier knob, checking paper feed recording signal from sun, two markers, one straight & one wavy... - 無線電波 個影片檔及 b 捲影像00:18
5g sunset cell tower: cellular communications tower for mobile phone and video data transmission - 無線電波 個影片檔及 b 捲影像00:15日落
at deep space station 51, now hartebeesthoek radio astronomy observatory, footage shows a long range directional antenna, south africa, 1964. the... - 無線電波 個影片檔及 b 捲影像00:11
red sonar circles loopable 4k stock video template on white screen background - widening rings earthquake map pin icon animation - 無線電波 個影片檔及 b 捲影像00:16紅色, 波浪型
static and electronic noise, television glitch background. no signal display. - 無線電波 個影片檔及 b 捲影像00:11電視雪花
a young male producer in a hoodie is using equipment in a recording studio to compose and record music or audio. - 無線電波 個影片檔及 b 捲影像00:16
digital waves flowing throug space, 5g internet. radio waves. satellite transmition. - 無線電波 個影片檔及 b 捲影像00:09
lost network while businessman having video conference meeting on laptop for working at home - 無線電波 個影片檔及 b 捲影像00:17互聯網, 負面情緒
image of telecommunication equipment at the highest point of paros island on august 19, 2020 in lefkes, greece. the island of paros has seen... - 無線電波 個影片檔及 b 捲影像00:13
1940s black and white mussolini giving speech/ dissolve to animation of radio tower transmitting the word "lies" - 無線電波 個影片檔及 b 捲影像00:03
looking into space; more of palomar observatory, and the spectroscope with 'fingerprints' of the stars / more of scientists working on telescopes /... - 無線電波 個影片檔及 b 捲影像03:15
radio waves marking on chart. vs converted gun carriage, dish w/ radio telescope pointed upward. male going over printout, radio waves marking on... - 無線電波 個影片檔及 b 捲影像00:50
navy building w/ angled parabolic dish radio telescope antenna on roof. vs naval antenna, slowly moving, male standing below on roof as dish rotating... - 無線電波 個影片檔及 b 捲影像00:49
soldiers preparing for a mission in an underground bunker in the late evening - 無線電波 個影片檔及 b 捲影像00:07
background wave digital effect beautiful corporate corporate technology light - 4k - 無線電波 個影片檔及 b 捲影像00:10
traveler using smartphone to navigate map and search travel information during journey - 無線電波 個影片檔及 b 捲影像00:11