Frequency Range:40 to 16kHz; Sensitivity(Dbv/PA):-54.5dbv / PA; Sensitivity(Mv/PA):1,88mv/PA; Use:Karaoke Microphone, Performing,Stage; Warranty:2 Years; Style:Headset Microphone; Application:Voice, Meeting, Amplify; Signal Transmission:Wired; ...
Frequency Range:640-690MHz; Color:Black; Plug Type :BNC; Dimensions: 41X197X151 mm; Certificates:Ce, RoHS; Warranty:Two Years; Service:OEM ODM Support ;After-Sale Service; Style:Headset Microphone; Application:Music, Voice, Recording, Meeting, Measurement, Ampl...
The radio frequency bands range from very low (VLF) to extremely high (EHF). High frequency (HF) — 3 to 30MHz— used by shortwave and some CB radios, for example; very high frequency (VHF) — 30 to 300 MHz — used by television broadcasts and FM radio, for example; ultrahigh freq...
Very high frequency (VHF) refers to the radio frequency electromagnetic waves ranging from 30 to 300 MHz with corresponding wavelengths ranging from 1 m to tens of meters. VHF is widely used for FM broadcasting, television broadcasting, military and local mobile radio transmissions, traffic control...
UHF is an Ultra High Frequency electromagnetic wave used to broadcast television. The predecessor to cable, UHF is still used for...
百度试题 题目甚高频的航空紧急频率是多少?(What is the aircraft emergency frequency on VHF?)相关知识点: 试题来源: 解析 121.5MHz 反馈 收藏
What is a frequency band? Intelecommunications, a frequency band -- sometimes called a band -- refers to a specific range of frequencies in the electromagnetic frequency spectrum assigned to certain applications. This spectrum is divided among ranges fromvery low frequencies(VLF) totremendously high...
3. A frequency is the number of oscillations in alternating electrical current each second.4. The term frequency may also refer to cycles per second of an electromagnetic wave, such as a sound wave or a light wave. The frequency of light determines its color, as seen by the human eye. ...
Very High Frequency (VHF): 30 ~ 300 megahertz (MHz) Ultra High Frequency (UHF): 300 ~ 3000 megahertz (MHz) Super High Frequency (SHF): 3 ~ 30 GHz (GHz) Extremely High Frequency (EHF): 30 ~ 300 GHz (GHz) What is Hz Converter?
is known as the radio spectrum. For example, the VHF (very high frequency) band, which ranges from 30-300 MHz, is being used for FM radio, TV broadcasts, and amateur radio and its counterparts. For a lot of electronic communication devices, the ultra-high frequency (UHF) band is being...