| 释义 |
VLF
noun[ U ]
uk /ˌviː.elˈef/ us /ˌviː.elˈef/
abbreviation for very low frequency: radio waves between 3 and 30 KHz:
Every country has a different range of TV bands and channels, for example Australia and New Zealand use both VLF and VHF.
The site was transmitting VLF radio messages to submarines.
Data transmission occurs on all parts of the radio spectrum, from VLF, through the VHF and UHF bands, right up to the microwave bands.
This also includes VLF devices which transmit on frequencies down to 15 kilohertz.
Disruptions in the ionosphere were detected using very low frequency (VLF) radio sounding.
He reported that very low frequency (VLF) waves from power lines were affecting the ionosphere.
SMART Vocabulary: related words and phrases
Broadcasting: radio
am
antenna
anti-jamming
anti-radar
autotune
bandwidth
beacon
CB
LW
medium wave
multi-wavelength
multichannel
MW
RDS
receiver
short wave
shout-out
tranny
transponder
tuner
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