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VHF    
甚高频

甚高频

VHF
n 1: a group of illnesses caused by a viral infection (usually
restricted to a specific geographic area); fever and
gastrointestinal symptoms are followed by capillary
hemorrhage [synonym: {hemorrhagic fever}, {haemorrhagic fever},
{viral hemorrhagic fever}, {viral haemorrhagic fever},
{VHF}]
2: 30 to 300 megahertz [synonym: {very high frequency}, {VHF}]

34 Moby Thesaurus words for "VHF":
AF, CPS, EHF, HF, Hz, MF, RF, SHF, UHF, VLF, audio frequency,
carrier frequency, cycles, extremely high frequency, frequency,
frequency spectrum, hertz, high frequency, intermediate frequency,
kilocycles, kilohertz, low frequency, lower frequencies,
medium frequency, megacycles, megahertz, radio frequency,
spark frequency, spectrum, superhigh frequency,
ultrahigh frequency, upper frequencies, very high frequency,
very low frequency


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  • Very high frequency - Wikipedia
    Very high frequency VHF television antennas used for broadcast television reception These six antennas are a type known as a Yagi antenna, which is widely used on VHF
  • The Differences Between UHF and VHF Radio Frequencies
    VHF consists of radio waves from 30 to 300 MHz and is used in some critical communication systems, like FM Radio, marine communications, long-range data transmission, and two-way land mobile radio systems
  • Marine VHF radio - Wikipedia
    Marine VHF radio equipment is installed on all large ships and most seagoing small craft It is also used, with slightly different regulation, on rivers and lakes
  • San Bernardino County, California - RadioReference. com
    Private Ambulances AMR Ambulance uses their own talkgroups on the county 800 MHz trunking system for dispatching emergency calls The VHF frequencies below are normally used for BLS interfacility transfers
  • VHF vs UHF Radios: The Differences Explained
    VHF band radio waves operate on lower frequencies but are longer, so they work better for long-range outdoor use in job sites, campgrounds, and farms Unlike UHF waves, VHF cannot penetrate objects like buildings or other large obstructions
  • MACS 441-1 Radio Communications Guidelines
    The California Emergency Services Radio System (CESRS) is the only VHF statewide channel authorized for use as a Travel Channel within the State of California As a Travel Channel, CESRS must be used in the Direct Mode for line-of-sight travel communications
  • VHF | Marine, Airwaves Radios | Britannica
    VHF, conventionally defined portion of the electromagnetic spectrum including any radiation with a wavelength between 1 and 10 metres and a frequency between 300 and 30 megahertz VHF signals are widely employed for television and radio transmissions
  • What VHF Radio? Definition, Uses, Benefits | Abi Royen
    VHF stands for Very High Frequency, which refers to a specific range of radio frequencies between 30 MHz and 300 MHz VHF radios operate within this range, and are commonly used for short- to medium-range communication
  • Very High Frequecy (VHF) | Advanced Navigation
    Very High Frequency (VHF) is a key radio band used in navigation, aviation, and communication for clear, reliable signal transmission
  • VHF UHF HF Antennas for Base Portable Mobile EmComm
    Portable, base mobile antennas for VHF, UHF HF from Alpha enables high performance Ham radio, POTA, EmComm Military communications





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