New FCC RF safety rules for ham radio #hamradio – May 2021

Changes to FCC RF exposure rules go into place in May 2021 in the US. I talk about the rules, what’s changed and how to stay in compliance. I also describe how to:

– Determine (under the new rules) whether you are covered under an exemption
– Use either of two calculators to perform an evaluation for MPE (Maximum Permissible Exposure) if you wish to or are required to perform an evaluation.

Other videos will discuss using antenna modeling software and field strength measurements.

**NEW ARRL FAQ WITH 2021 INFO**
Downloadable PDF and link to this video (share with your friends!) – https://hudson.arrl.org/index.php/fcc-rf-safety-faq/

~~INFORMATION~~
ARRL RF Safety info: http://www.arrl.org/rf-exposure
2019 FCC R&O: https://www.fcc.gov/document/fcc-maintains-current-rf-exposure-safety-standards
FCC OET 65: https://transition.fcc.gov/Bureaus/Engineering_Technology/Documents/bulletins/oet65/oet65.pdf
Specific information for radio amateurs (OET 65b): https://transition.fcc.gov/Bureaus/Engineering_Technology/Documents/bulletins/oet65/oet65b.pdf

FREE ARRL eBook – RF Exposure and you (PDF): http://www.arrl.org/files/file/Technology/RFsafetyCommittee/RF%20Exposure%20and%20You.pdf
American Cancer Society RF Safety information: https://www.cancer.org/cancer/cancer-causes/radiation-exposure/radiofrequency-radiation.html

RSGB (UK) RF Safety video: https://rsgb.org/main/technical/emc/emf-exposure/

In-depth presentation by N9GL: https://www.dropbox.com/sh/mq3djoyqppeucwg/AACjeZjnNjFcDINtEI_B6xPpa?dl=0 />

~~CALCULATORS~~
**NOTE – All calculators are for power AT THE ANTENNA so you need to take into account feedline losses. See this video for how to calculate your feedline losses: https://youtu.be/YcA-XfSYbTk

MPE Calculator #1 (Evans): http://hintlink.com/power_density.htm
MPE Calculator #2 (Overbeck/Lake Washington): http://www.lakewashingtonhamclub.org/resources/rf-exposure-calculator/
Another calculator (pwr_dens) from K1TR. This is a Windows program: https://www.qsl.net/k1tr/Downloads.htm
Original BASIC program by Wayne Overbeck, N6NB: http://n6nb.com/rfsafety.htm
More RF calculators: https://www.vpitechnology.com/rf-calculators

Join ARRL: http://www.arrl.org/join
Donate to ARRL: https://www.arrl.org/arrl-donation-form
ARRL Technical Information Service (TIS): http://www.arrl.org/technical-information-service
Buy me a coffee – https://www.buymeacoffee.com/n2rj

~~LIKE, SHARE AND SUBSCRIBE~~

Thank you!

Chapters:

0:00 – Pre-Intro
0:23 – Intro
0:46 – Disclaimer and what this video is about
1:19 – FCC adopts new rules and deadline, historical info
2:12 – Why we have these rules
5:16 – Why you need to comply with the rules, what’s grandfathered
7:11 – New rules for mobile and portable devices
8:31 – Introduction to MPE calculations
9:46 – Example checking for an exemption
12:00 – MPE evaluation calculator #1 – Paul Evans VP9KF
18:21 – MPE evaluation calculator #2 – Wayne Overbeck N6NB
19:52 – Where to go for more help and information
20:33 – Outro, suggested videos

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