8,700 Studies Reviewed. 87.0% Found Biological Effects. The Evidence is Clear.

AN ATTEMPT TO EVALUATE THE EXPOSURE OF OPERATORS OF PORTABLE RADIOS AT 30 MHZ

Bioeffects Seen

Q. Balzano, O. Garay, F. R. Steel · 1979

Share:

Early research recognized the need to measure RF exposure from portable radios, highlighting occupational health concerns decades before cell phones.

Plain English Summary

Summary written for general audiences

This 1979 technical report by Q. Balzano attempted to measure radiofrequency exposure levels for operators of portable radios operating at 30 MHz. The research used phantom measurements to evaluate power density levels that radio operators experienced during typical use. This represents early efforts to quantify occupational RF exposure from two-way radio equipment.

Why This Matters

This study represents a crucial early attempt to quantify occupational RF exposure from portable radios, decades before cell phones became ubiquitous. The 30 MHz frequency range was commonly used for professional two-way radios, including police, fire, and emergency services communications. What makes this research particularly significant is its focus on operators who used these devices regularly as part of their jobs, potentially receiving far higher cumulative exposures than occasional users. The phantom measurement approach suggests researchers were already concerned about biological effects and wanted to simulate real-world exposure conditions. This type of occupational exposure assessment laid important groundwork for understanding how close-proximity RF devices affect the human body, research that became critical as wireless technology exploded in subsequent decades.

Exposure Information

Specific exposure levels were not quantified in this study.

Cite This Study
Q. Balzano, O. Garay, F. R. Steel (1979). AN ATTEMPT TO EVALUATE THE EXPOSURE OF OPERATORS OF PORTABLE RADIOS AT 30 MHZ.
Show BibTeX
@article{an_attempt_to_evaluate_the_exposure_of_operators_of_portable_radios_at_30_mhz_g4503,
  author = {Q. Balzano and O. Garay and F. R. Steel},
  title = {AN ATTEMPT TO EVALUATE THE EXPOSURE OF OPERATORS OF PORTABLE RADIOS AT 30 MHZ},
  year = {1979},
  
  
}

Quick Questions About This Study

The portable radios in this study operated at 30 MHz, a frequency commonly used for professional two-way radio communications including police, fire, and emergency services equipment in the late 1970s.
Phantom measurements use human-shaped models filled with tissue-simulating materials to measure how electromagnetic fields penetrate and distribute within the body, providing safer alternatives to direct human exposure testing.
Professional radio operators including police officers, firefighters, emergency responders, security personnel, and other workers who relied on two-way radio communication systems as part of their daily job duties.
Power density measurements help determine how much RF energy the human body absorbs from close-proximity devices, which is essential for establishing safety guidelines and understanding potential biological effects.
30 MHz is much lower than modern cell phone frequencies (typically 800 MHz to 5 GHz), representing the VHF band that was standard for professional radio communications before cellular technology emerged.