Radio Uhf

What is meant by, “HF/VHF/UHF radio interception”?

I guess my question is when a job lists “Must have HF/VHF/UHF radio interception experience”, what does that mean? What types of radio communications fall under this spectrum? Video? Any info is always helpful.
***I know what HF/VHF/UHF stands for, I was wondering what type of communications fall in this spectrum.***

These are frequencies involved in AM/FM radio broadcast, public service broadcast, military frequencies, Ham radio, TV, business 2-way radio service, radar, experimental bands and frequencies, cell phones, pagers, satellite communications, etc.

See: SPECTRUM CHART
http://www.adec.edu/tag/specturm.html

Video is usually specific to a range of frequencies in the VHF and UHF spectrum with a bandwidth of 6 MHz spacing with video frequencies about 4.5 MHz above the sound frequency.

See: Television Frequency Table
http://www.csgnetwork.com/tvfreqtable.html

See: Video Deck Frequency Response
http://www.bealecorner.com/trv900/sweep/sweep.html

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