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MEASUREMENT OF ELECTROMAGNETIC RADIATION LEVELS FROM SELECTED TRANSMITTERS OPERATING BETWEEN 54 and 220 MHz in the LAS VEGAS, NEVADA, AREA

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Kenneth R. Envall, Richard W. Peterson, Harold F. Stewart · 1971

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This 1971 Las Vegas study documented early VHF broadcast radiation levels, providing crucial baseline data for today's exponentially higher urban RF exposures.

Plain English Summary

Summary written for general audiences

This 1971 government report documented electromagnetic radiation levels from VHF transmitters operating between 54-220 MHz in Las Vegas, Nevada. The study measured actual RF exposure levels from broadcasting equipment in an urban environment during the early days of widespread television and FM radio transmission. This represents some of the earliest systematic documentation of population-level RF exposure from commercial broadcasting sources.

Why This Matters

This government measurement study from 1971 provides a crucial historical baseline for understanding how our electromagnetic environment has evolved. The 54-220 MHz frequency range covers VHF television channels and FM radio - sources that were just beginning to saturate urban areas like Las Vegas in the early 1970s. What makes this particularly significant is the timing: this research captured RF exposure levels before the explosion of wireless devices, cell towers, and digital broadcasting that would follow in subsequent decades.

The reality is that Las Vegas in 1971 represents a relatively 'clean' electromagnetic environment compared to today's cities. Modern urban areas experience RF exposure levels that are orders of magnitude higher across a much broader frequency spectrum. This study serves as an important reference point for understanding how dramatically our daily electromagnetic exposure has increased over the past five decades.

Exposure Information

Specific exposure levels were not quantified in this study.

Cite This Study
Kenneth R. Envall, Richard W. Peterson, Harold F. Stewart (1971). MEASUREMENT OF ELECTROMAGNETIC RADIATION LEVELS FROM SELECTED TRANSMITTERS OPERATING BETWEEN 54 and 220 MHz in the LAS VEGAS, NEVADA, AREA.
Show BibTeX
@article{measurement_of_electromagnetic_radiation_levels_from_selected_transmitters_opera_g3856,
  author = {Kenneth R. Envall and Richard W. Peterson and Harold F. Stewart},
  title = {MEASUREMENT OF ELECTROMAGNETIC RADIATION LEVELS FROM SELECTED TRANSMITTERS OPERATING BETWEEN 54 and 220 MHz in the LAS VEGAS, NEVADA, AREA},
  year = {1971},
  
  
}

Quick Questions About This Study

The study measured electromagnetic radiation from transmitters operating between 54-220 MHz, which covers VHF television channels 2-13 and FM radio frequencies. This frequency range represented the primary broadcast sources in urban areas during the early 1970s.
This appears to be part of early government efforts to document population exposure levels from commercial broadcasting equipment as VHF television and FM radio transmission expanded rapidly in major urban markets during the 1970s.
Modern Las Vegas experiences vastly higher RF exposure across many more frequencies due to cell towers, WiFi, digital broadcasting, and wireless devices that didn't exist in 1971. This study represents a much 'cleaner' electromagnetic baseline.
The research focused on VHF transmitters, which would have included television broadcast antennas for channels 2-13 and FM radio transmission equipment operating in the 54-220 MHz frequency band in the Las Vegas metropolitan area.
It provides rare documentation of urban RF exposure levels before the wireless revolution, serving as a crucial baseline for understanding how dramatically our electromagnetic environment has changed over five decades of technological advancement.