Free Encyclopedia of Building & Environmental Inspection, Testing, Diagnosis, Repair

Ask a Question or Search InspectAPedia

• HOME
• AIR CONDITIONING
• ELECTRICAL
• EXTERIORS
• HEATING
• HOME INSPECTION
• INTERIORS
• PLUMBING
• ROOFING
• SEPTIC SYSTEMS
• STRUCTURE
• WATER SUPPLY

• ENERGY SAVINGS
• ENVIRONMENT
• INDOOR AIR IAQ
• INSULATION
• MOLD INSPECT TEST REMOVE
• NOISE
• ODORS
• SOLAR ENERGY
• VENTILATION
• EXPERTS DIRECTORY
• CONTACT US

Radio Frequency (RF) Field Measurement Instrument Choices: this article describes low-cost RF radio frequency electromagnetic field survey measurement instruments useful for performing electromagnetic field RF field detection and level measurements either by engaging a professional or by consumers using low-cost instruments which measure radio frequency level and direction.

Specific RF measurement tools (radio, TV, cell tower, microwaves) are described and their sources listed at Radio Frequency RF Detection Meters suitable for radio, TV, cellphone, microwave, and similar signals. Also see Cell phone Radiation Hazards. Specific ELF measurement tools (power lines, electrical wiring, appliances) are described and their sources listed at Electromagnetic Field EMF Measurement Instruments.

© Copyright 2012 InspectAPedia.com, All Rights Reserved. Information Accuracy & Bias Pledge is at below-left. Use page top links to major topics or use links at the left of each page to navigate within topics and documents at this website. Green links show where you are in a document series or at this website.

RF Radio Frequency Field Strength Measurement Instruments - Examples

Before buying an EMF or RF test instrument, in order to make sure that the device you are buying is the right one for the hazard you are trying to measure, see EMF RF FIELD & FREQUENCY DEFINITIONS for a simple explanation of different types of radio frequency (RF) and electromagnetic frequency (EMF) types and where they are found.

The information provided here is for research and study purposes. The author makes no representation of unique expertise on this topic, other than having field experience in EMF measurement, having studied technical literature and having conversed with other experts and authors in the field for a number of years. This information is has not been sanctioned nor technically reviewed by the American Society of Home Inspectors nor the American Industrial Hygiene Association - AIHA. Use it at your own risk.

Radio frequency or RF detection equipment has a more extensive list of applications than the low frequency electromagnetic field EMF detection equipment described separately at Electromagnetic Field EMF ELF Detection Instrument..

What's the difference between radio frequency (RF) and electromagnetic frequency (EMF)?

While EMF or electromagnetic field low frequency 60 cycle or 60 Hertz signals are associated with power transmission lines and household wiring or appliances, higher frequency RF equipment includes radio and television signals, radio towers, TV towers, cell towers, cellular telephone signals, Wi-Fi signals, bluetooth radio signals, GSM, Radar, DECT, UMTS, WLAN, and all other wireless communication signals.

The cell phone tower in our photo (left) is located in Westchester County, New York. Exposure of electromagnetic radiation from cell towers is normally a separate question from EMR exposure from use of cellphones themselves.

The devices listed just below are for detection and measurement of higher frequency RF or radio frequency detection and measurement. For low frequency EMF (power line type) electromagnetic field detection and measurement, see Evaluation of Low-Cost EMF Instruments.

Where to Buy RF Radio Frequency Monitoring or Measuring Equipment

In these articles we list manufacturers and suppliers of RF and EMF measuring equipment. These devices are readily available from many electrical equipment and home inspection equipment suppliers. Don't contact InspectAPedia to buy equipment - we do not sell anything.

See Evaluation of Low-Cost EMF Instruments This article describes several low-cost and reasonably accurate EMF measurement devices that are readily available suitable for measuring EMF from power transmission lines or home electrical wiring and appliances. See Radio Frequency RF Detection Meters This article describes several low-cost and accurate radio frequency or RF detection and measurement devices suitable for radio, TV, cellphone, microwave, and similar signals.

BK RF Measurement Test Equipment Models & Manufacturers

• BK Precision 103 - 1MHz to 3.0GHz Handheld Frequency Counter/Strength Meter for measuring RF radio frequency strength
• BK Precision 104 - 10Hz to 3.0GHz Handheld Frequency Counter/Strength Meter for measuring RF radio frequency strength
• BK Precision 106 - 30MHz to 2.8GHz Handheld Frequency Counter/Strength Meter for measuring RF radio frequency strength

B&K Precision offers a variety of instruments to test and characterize RF and microwave devices operating from DC to 8.5 GHz. Here is the company's general product description:

RF Field Strength Meters detect the electric field of radio and microwave signals and measure the electric field strength. Field strength meters provide field technicians and engineers with a cost-effective measurement tool for basic signal investigations at only a fraction of the cost of a full-featured conventional spectrum analyzer.

Handheld RF Field Strength Analyzers are ideal tools for field testing, installing and maintaining Mobile Telecommunications systems such as Cellular and Cordless Phone, CB Paging, Paging, Cable and Satellite TV Systems and performing antenna site measurements and maintenance.

Website: http://www.bkprecision.com/products/categories/15/rf-test-instruments.html

Mobile Design Shipboard RF Measurements

Special difficulties ensue in making microwave measurements on Navy ships, including cramped space, multiple RF sources, and many sources of RF interference.

Hand-held instruments for shipboard RF measurements are provided by Mobile Design at

Website: http://mobiledevdesign.com/hardware_news/radio_handheld_instruments_aid/

We agree with the company's instrument use advice, in particular using the instrument in a consistent, standard, repeatable manner, and taking into account background signals and other sources of interference.

Sources: Zap Checker - http://www.zapchecker.com/ - Alan Broadband, 751 Laurel St #12, San Carlos, CA 94070 USA Ph: 650-345-9627

Safe Living RF Meters - Radio Frequency Detectors

• Safe Living RF Meter - 27 MHz - 6 GHz, detecting cellular telephone signals, Wi-Fi signals, bluetooth radio signals, GSM, Radar,DECT, UMTS, WLAN, and all other wireless communication signals

Safe Living Technologies Inc., 34 Queen Street P.O. Box 72 Morriston, Ontario N0B 2C0 Canada Phone: 519-240-8735 Fax: 519-821-5724

Website: http://www.safelivingtechnologies.ca/contact.htm

Zap Checker Radio Frequency Detection Hand Held Instruments

The Zap Checker - a series of hand-held ultra-sensitive instruments intended to detect and display radio frequency (RF) signals over varying spans of radio frequency range. Instrument prices range from around $160 to $2800. (March 2010). The company describes the Zap Checker as a counter surveillance, bug detector, field strength meter. Here is the company's general product line description:

All Zap Checker models are easy to use, small, handheld products with internal fixed antennas which require no adjustments. All models employ linear (regular) as well as logarithmic (compressed) amplification and detection. Each model has an analog meter and LED display. (The LED displays are visible from a distance and at night time.)

Most Zap Checkers have an audio output to hear signal strength levels and identify sources by their characteristic sounds. Some products have a switch enabled silent vibrator. The more professional models employ specialized external antennas and, in the case of the ABC 126, a high frequency band that filters out noise and interfering signals to allow for the highly sensitive detection of signals above 1.5 GHz. The ABC 126 also has a USB output connection for distant monitoring, remote powering and accessory switching.

• Zap Checker Model ZC 185 - 3MHz to 5 GHz
• Zap Checker Model ZC 190B - 1MHz to 8 GHz
• Zap Checker Model ZC 300 - 1MHz to 8 GHz with connector for special filtering antennas, directional logging
• Zap Checker Model ZC 126 - 1 MHz to 14 GHz bandwidth professional RF testing instrument, omni directional, high sensitivity, -90 dBm @ 2.4 GHz, -80 dBm @ 5.8 GHz, -60 dBM @ 12 GHz

Website: www.zapchecker.com/

Instead of contacting us with a request to perform RF Radio Frequency Field Strength measurements, in most cases it is more economical and convenient for a property owner to purchase their own instrument, making measurements under varying conditions. In this series of articles we describe how to make measurements using a consistent approach and using good documentation. See Recommended EMF Measurement Procedure for details of how to collect RF and / or EMF measurement data.

Following good procedure and using instruments properly are two steps towards making accurate, repeatable RF measurements. But because the signal transmission for RF sources is not under control of an individual property owner, and because the field strength varies as the signal transmission activity varies, it is important to have an idea of that condition as well when attempting to characterize RF exposure at a specific location.

Please do not contact us with a request buy electronic measuring equipment. We do not sell anything. To do so would be a conflict of interest for this website. These devices are readily available from many electrical equipment and home inspection equipment suppliers.

• See Evaluation of Low-Cost EMF Instruments This article describes several low-cost and reasonably accurate EMF measurement devices that are readily available.
• See Radio Frequency RF Detection Meters This article describes several low-cost and accurate radio frequency or RF detection and measurement devices suitable for radio, TV, cellphone, microwave, and similar signals.

Questions & Answers regarding this article

.

Share this Article      

...

Technical Reviewers & References

• InspectAPedia.com^® - Daniel Friedman - Publisher & Editor.
• InspectAPedia Bookstore lists recommended books, organized by topic & available for purchase. Most of our articles also include a list of recommended books for the specific article topic as well as other references, and information sources.
• Critique, contributions wanted: Contact Us to suggest corrections or additions to articles at this website, and if you wish, to receive online listing and credit as a contributor. Particular thanks are due to the many experts and also consumers who read and critique technical articles at InspectAPedia.com.
• Additional technical contributors & reference sources for this article are listed below.

Use links just below or at the left of each page to navigate this document or to view other topics at this website. Green links show where you are in our document or website.

  Radio Frequency RF Detection Meters
    BK RF Measurement Test Equipment
    Mobile Design Shipboard RF Measurements
    Safe Living RF Meters - Radio Frequency Detectors
    Zap Checker Radio Frequency Detection Hand Held

References for Electromagnetic Fields and Cancer Risk/Carcinogenicity

• Electric Power Lines, Electromagnetic Fields, Cancer Risk, & "Enviro-Scare" - The Normal Curve Cycle of Public Fear About Environmental Issues - online document by DF
• A Procedure for Measuring EMF electromagnetic fields online document by DF
• "Questions and Answers about Biological Effects and Potential Hazards of Radiofrequency Electromagnetic Fields", Federal Communications Commission, Office of Engineering and Technology, US FCC, OET Bulleting 56, 4th Edition, August 1999
  " Many consumer and industrial products and applications make use of some form of electromagnetic energy. One type of electromagnetic energy that is of increasing importance worldwide is radiofrequency (or "RF") energy, including radio waves and microwaves, which is used for providing telecommunications, broadcast and other services. In the United States the Federal Communications Commission (FCC) authorizes or licenses most RF telecommunications services, facilities, and devices used by the public, industry and state and local governmental organizations. Because of its regulatory responsibilities in this area the FCC often receives inquiries concerning whether there are potential safety hazards due to human exposure to RF energy emitted by FCC-regulated transmitters. Heightened awareness of the expanding use of RF technology has led some people to speculate that "electromagnetic pollution" is causing significant risks to human health from environmental RF electromagnetic fields. This document is designed to provide factual information and to answer some of the most commonly asked questions related to this topic." - original source: U.S. Federal Communications Commission Office of Engineering and Technology, http://www.fcc.gov/Bureaus/Engineering_Technology/Documents/bulletins/oet56/oet56e4.pdf
• "Magnetic Field Exposure and Cancer: Questions and Answers [ copy on file as /emf/EMF_Fact_Sheet_NCI_NIH.pdf ] - ," National Cancer Institute, U.S. National Institutes of Health, web search September 2010, original source: http://www.cancer.gov/cancertopics/factsheet/Risk/magnetic-fields
  makes these five key points about EMF
  • Electric and magnetic fields (EMF) are areas of energy that surround any electrical device. EMFs are produced by power lines, electrical wiring, and appliances (see Question 1).
  • Electric fields are easily shielded or weakened by walls and other objects, whereas magnetic fields are not. Since magnetic fields are more likely to penetrate the body, they are the component of EMFs that are usually studied in relation to cancer (see Question 1).
  • Overall, there is limited evidence that magnetic fields cause childhood leukemia, and there is inadequate evidence that these magnetic fields cause other cancers in children (see Question 2).
  • Studies of magnetic field exposure from power lines and electric blankets in adults show little evidence of an association with leukemia, brain tumors, or breast cancer (see Question 3).
  • Past studies of occupational magnetic field exposure in adults showed very small increases in leukemia and brain tumors. However, more recent, well-conducted studies have shown inconsistent associations with leukemia, brain tumors, and breast cancer (see Question 4).
• EMF RF FIELD & FREQUENCY DEFINITIONS RF and EMF measurement tools need to be properly chosen to measure the particular type and frequency of RF or EMF signal that is of interest. See EMF RF FIELD & FREQUENCY DEFINITIONS for a simple explanation of different types of radio frequency (RF) and electromagnetic frequency (EMF) types and where they are found.
• Definitions of Gauss vs Milligauss for details about gauss and milligauss and definitions of these terms.
• Consumer Product Safety Commission, 800-638-CPSC.
• US Environmental Protection Agency, Office of Pesticides and Toxic Substances, TSCA Assistance Office (TS-799), 800-424-9065 or 202-554-1404.
• "Evaluation of Potential Carcinogenicity of Electromagnetic Fields," EPA Report #EPA/600/6-90/005B October 1990. EPA: 513/569-7562.
• "Biological Effects of Power Frequency Electric and Magnetic Fields" background paper, prepared as part of OTA's assessment of "Electric Power Wheeling and Dealing: Technological Considerations for Increasing Competition," prepared for OTA by Indira Nair, M. Granger Morgan, H. Keith Florig, Department of Engineering and Public Policy, Carnegie Mellon University, Pittsburgh, PA 15213
• "Biological Effects of Power Line Fields," New York State Powerline Project. Scientific Advisory Board Final Report, July 1, 1987.
• "Extremely Low Frequency (ELF) Fields," Environmental Health Criteria 35. World Health Organization, Geneva, 1984.
• "Electric and Magnetic Fields at Extremely Low Frequencies: Interactions with Biological Systems. In: Non ionizing Radiation Protection, World Health Organization, Regional Office for Europe, Copenhagen, 1987.
• "Electric and Magnetic Fields from 60 Hertz Electric Power: What do we know about possible health risks?," Department of Engineering and Public Policy, Carnegie Mellon University, Pittsburgh, PA 15213 1989.
• "Electromagnetic Fields Are Being Scrutinized for Linkage to Cancer," Sandra Blakeslee, New York Times, Medical Science section, April 2, 1991
• Electromagnetic Fields in the Workplace sample very good NIOSH document online, links to other NIOSH docs.
• Electromagnetic Field Surveys & Hazards full list of our links to services and technical article
• Electric Power Lines, Electromagnetic Fields, Cancer Risk, & "Enviro-Scare" - The Normal Curve Cycle of Public Fear About Environmental Issues - online document by DF

Books & Articles on Building & Environmental Inspection, Testing, Diagnosis, & Repair

• Our recommended books about building & mechanical systems design, inspection, problem diagnosis, and repair, and about indoor environment and IAQ testing, diagnosis, and cleanup are at the InspectAPedia Bookstore. Also see our Book Reviews - InspectAPedia.
• ...