رسانه و ارتباطات - صدا و سیما

the electronic medium of transmitting audiovisual content to viewers

*تلویزیون

the transmission and reception of audio content through electromagnetic waves, providing a platform for delivering news, music, and other forms of entertainment to listeners

*رادیو

the specific number of waves that pass a point every second

بسامد

radio waves used as a medium for broadcasting television and radio programs

موج‌های رادیویی

a unit that is used to measure the frequency of a radio wave, or speed of a computer, which is equal to 1 billion Hertz

گیگاهرتز

disturbance caused by signals from a different source which lead to unwanted noise in a radio signal that is being received

پارازیت

a radio wave with a frequency under 300 kHz and a wavelength of more than 1 kilometer that is used for broadcasting

موج بلند

a radio wave that has a frequency between 300 kHz and 3 MHz and a wavelength between 100 to 1000 meters, which is used for broadcasting

موج متوسط

a radio wave that has a frequency between 3 and 30 MHz, and a wavelength between 10 to 100 meters, used for broadcasting

موج کوتاه

a unit that is used to measure the frequency of a radio wave which is equal to 1 million Hertz

مگاهرتز

a series of electrical or radio waves carrying data to a radio, television station, or mobile phone

سیگنال (رادیو، تلویزیون و...)

a recognizable signal that the radio broadcasts at a precise time to indicate the accurate time of day

سیگنال زمان

a tall structure, usually made of metal, used to transmit television or radio signals

دکل مخابرات

the activity of transmitting a signal, a message or a program that is being broadcast on radio or television

پخش (رادیویی یا تلویزیونی)

a range of radio waves with a frequency between 300 MHz and 3000 MHz, especially used in broadcasting television and radio programs that are of high-quality

بسامد فرابالا

radio waves in the range of 30 to 300 MHz that are used in broadcasting TV signals

بسامد بسیار بالا

a series of radio waves with similar lengths used for specific types of radio broadcasting

دامنه طول موج

the distance between a point on a wave of energy and a similar point on the next wave

طول موج

a noise that holds numerous sound frequencies with the same strengths

نویز سفید

the distribution of audio or video content to a wide audience, typically through radio or television, using a network or airwaves

پخش

the absence of any sound or broadcast signal on a radio or television channel, resulting in a period of silence or static noise

هوای مرده

the quality or the act of receiving radio, television or cellphone signals

سیگنال دریافتی

a program sent out by a satellite or from the main network to radio and television stations for broadcasting

برنامه‌های ارسالی از ایستگاه مرکزی

the transmission or dissemination of content to a specific and targeted audience or niche market, as opposed to broadcasting to a broad and general audience

باریک

‌a system by which people working in a radio station can communicate with one another without being heard by the audience

سیستم ارتباط دوطرفه

interfering noises on telecommunication systems, such as radio, caused by electrical disturbances in the air

پارازیت

a right given to people to broadcast their own programs on television or radio channels

دسترسی عمومی (تلویزیون و رادیو)

the licensing or distribution of television or radio programs to multiple broadcasters or stations for airing, allowing content to reach a broader audience beyond its original network or production company

سندیکا

a group of TV or radio stations broadcasting the same program at the same time in different places

شبکه

one of the main methods of radio broadcasting with a high sound quality

پخش رادیویی اف‌ام

one of the main methods of radio broadcasting with a lower sound quality than FM

پخش ای‌ام

the trend of canceling traditional cable or satellite TV subscriptions in favor of streaming services or other digital media options

جایگزینی تلویزیون کابلی با پلتفرم‌های آنلاین