people also ask：
baike
mobile
I ASK
QuesHub APP
QuesHub > 无线电 > 年代 > 边带 > ASK DETAIL

When was radio first used 2024?

Amelia Lewis | 2023-04-24 23:01:01 | page views：1261
I'll answer
Earn 20 gold coins for an accepted answer.20 Earn 20 gold coins for an accepted answer.
40more
Best Answer | Search More answer on queshub>>

Benjamin Lee

Works at the International Organization for Migration, Lives in Geneva, Switzerland.
In the 1920s, radio was first used to transmit pictures visible as television. During the early 1930s, single sideband (SSB) and frequency modulation (FM) were invented by amateur radio operators. By 1940, they were established commercial modes.
2023-04-25 23:01:01
评论(499) Helpful(122)

Isabella Ross

QuesHub.com delivers expert answers and knowledge to you.
In the 1920s, radio was first used to transmit pictures visible as television. During the early 1930s, single sideband (SSB) and frequency modulation (FM) were invented by amateur radio operators. By 1940, they were established commercial modes.
History of radio - Wikipedia
ORG URL>>
首页 上一页 1 NEXT  LAST
  • 0
    0
    2
    3
    4
    5
    6
    7
    8
    9
    0
    1
    2
    3
    4
    5
    6
    7
    8
    9
  • 0
    1
    2
    3
    4
    5
    6
    7
    8
    9
    0
    1
    2
    3
    4
    5
    6
    7
    8
    9
  • 0
    1
    2
    3
    4
    5
    6
    7
    8
    9
    0
    1
    2
    3
    4
    5
    6
    7
    8
    9
  • 0
    1
    2
    3
    4
    5
    6
    7
    8
    9
    0
    1
    2
    3
    4
    5
    6
    7
    8
    9
  • 0
    1
    2
    3
    4
    5
    6
    7
    8
    9
    0
    1
    2
    3
    4
    5
    6
    7
    8
    9
  • 0
    1
    2
    3
    4
    5
    6
    7
    8
    9
    0
    1
    2
    3
    4
    5
    6
    7
    8
    9
  • 0
    1
    2
    3
    4
    5
    6
    7
    8
    9
    0
    1
    2
    3
    4
    5
    6
    7
    8
    9
  • 0
    1
    2
    3
    4
    5
    6
    7
    8
    9
    0
    1
    2
    3
    4
    5
    6
    7
    8
    3

people are using QuesHub for answers.

Me Too.
RunTime:0.8306 || DBTime : 0

HOT TOPIC

ask:3,asku:1,askr:137,askz:21,askd:152,RedisW:0askR:3,askD：0 mz:hit,askU:0,askT:0askA:4