Bonding bus ac safety ground house exterior service entrance ground bond if near the service entrance ac power service antenna cables antenna cables phone service heavy bonding conductor tower grounding system conductor extends to all earth connections ham radio equipment entry panel ac power panel cable tv service ground rod. Published on aug 15, 2018 read grounding and bonding for the radio amateur pdf by arrl inc. Earthing and grounding are actually different terms for expressing the same concept. Readers should note that arrl grounding and bonding for the radio amateur is intended as a model code of practice, for use when preparing initial installation designs in the us. Six meter bbq austin texas six meter bbq austin texas. F opens at 30 ft us 6 miles ms cfi dconfined chlhannel htiheating creates sh kshock wave. You should bring your coax to your station and be grounded there. Also on the arrl site is a good list of links related to lightning protection, grounding, and bonding. Grounding and bonding for the radio amateur grounding and bonding for the radio amateur by ward silver, n0ax. Grounding and bonding for the radio amateur kindle edition by inc. It covers what your home owners insurance is going to work with if you have an issue of lightning or electrocution.
You can run bigger, but its not required if underground. Power, grounding, bonding, and audio for ham radio safety. The station ground system our discussion this time is not specifically about swr, but about one of the contributing factors to unacceptable swr and poor signal propagation improper grounding. Simmons serves nfpa on code making panel5 of the national electrical code committee grounding and bonding, and he previously served on the nfpa standards council, the nec technical correlating committee, the iaei, and underwriters laboratories. Arrl grounding and bonding for the radio amateur rw uk. Bonding and grounding for amateur radio john wagner, n8cd some content within is the work of others, attributed inline.
Appalachian power has electrical safety elearning and safety videos online. There is no such thing as an rf ground, due to wavelength, inductance, and skin effect. Power and grounding for audio and video systems a white. Bonding and grounding silvercreek amateur radio association. Build your ham radio station with effective grounding the american radio relay league arrl is the national association for amateur radio, connecting hams around the u. Arrl handbook, arrl antenna book grounding and bonding for the radio amateur nec handbook at your library standards and guidelines for communication sites motorola r56 available online lightning protection for the amateur station ron block, nr2b junjulaug 2002 qst arrl website. Bonding to a conventional ground rod or a copper pipe alternative should be of good electrical quality and above ground, outside connections should be weatherproofed as much as possible. Johnston neca executive director, standards and safety 1 welcome to a neca webinar based on the national electrical code. Arrl handbook, arrl antenna book nec handbook at your library standards and guidelines for communication sites motorola r56 available online lightning protection for the amateur station ron block, nr2b junjulaug 2002 qst arrl website power, grounding, bonding, and audio for amateur radio and. Scott wright, k0md, editor of ncj, arrl s premiere contesting journal. Arrl grounding and bonding for the radio amateur by ward silver, n0ax uk safety information introduction george bernard shaw said that the british and the north americans are two nations separated by a common language. Power, grounding, bonding, and audio for ham radio safety, hum, buzz, and rfi. Physics and effects, cambridge university press, 2006.
However, even note 1 the term britain or gb is used to denote england, wales and scotland. Bonding ground rod ground rod current source lightning average current 30,000 amps. Grounding presentation wb8vsu jim dara thursday night. The six meter bbq was held for over 30 years in the austin, texas area, with flex radio and dx engineering cohosting in 2017 and 2018 at the lone star court in austin. Osha fact sheet on grounding requirements for portable generators. It covers how we must be wiring grounding our stations. Aug 15, 2018 grounding and bonding for the radio amateur arrl inc.
I will discuss the nec bonding and grounding requirements that apply to radio telescope. All grounding electrodes are bonded together, giving lightning a shorter low impedance path to ground. Are you in search of guidance or digging for indepth information. Grounding, bonding, safety, rfi by bill mader, k8te. He is a retired member of the international brotherhood of electrical workers. This is evident from the differences in terminology used in describing. The book brings together material from numerous amateur radio and industry sources to present a comprehensive picture of basic grounding and bonding. You should read the arrl book on bonding and grounding. Power, grounding, bonding, and audio for ham radio safety, hum, buzz, and rfi jim brown k9yc.
Arrl handbook, arrl antenna book grounding and bonding for the radio amateur nec handbook at your library standards and guidelines for communication sites motorola r56 available online lightning protection for the amateur station ron block, nr2b junjulaug 2002 qst arrl website power, grounding, bonding, and audio for amateur. Read grounding and bonding for the radio amateur pdf by arrl inc. Amateur radio station grounding and lightning protection. Whether youre an amateur radio newbie or a seasoned dxer looking for new challenges, weve got the right publication for you. Bare or insulated ground radials info page 3 qrz forums. Remember, everything must be effectively bonded back to the electrical service entrance ground system.
What is the difference between bonding, grounding and earthing. Many parts are useful regardless of supply differences and you will find fascinating information on for example lightning protection. This seminar is the first in a short series of electrical grounding and bonding webinars presented by neca. Youll find it here in our extensive collection of books, videos, manuals, guides, and reference materials. Download it once and read it on your kindle device, pc, phones or tablets. Arrl grounding and bonding for the radio amateur provides information on ac safety in the us and their national electrical code but there is much more. Bonding is more clear word compare to grounding and earthing, but there is a micro difference between grounding and earhing. Bonding all building grounds breaker panel ham shack tower telco cable tv cold water ground rods radials grounding is for safety lightning protection blows a breaker if a power system short connections should be big copper and short.
Guidelines for grounding and bonding telecom systems. The station ground system the arrl louisiana section. Arrl grounding and bonding for the radio amateur arrl grounding and bonding for the radio amateur proper station grounding is important build your ham radio station with effective grounding and bonding techniques. The first thing to know is that there are three functions served by grounding in ham shacks. Arrl american radio relay league is the national association for amateur radio in the us. One of the most misunderstood and confused concept is difference between bonding, grounding and earthing. Grounding and bonding for the radio amateur grounding and bonding for the radio amateur by ward silver, n0ax, is now available from arrl.
The arrl handbook for radio communications 2017 pdf. Grounding for ac safety has several names equipment ground, thirdwire ground, greenwire ground keep ground connections lowresistance purpose is twofold provides a path to ac common point for fault current shorts, leakage stabilizes the ac power voltage during faults or transients, such as lightning ac safety grounding. Soares book on grounding and bonding, th edition nec 2017 international association of electrical inspectors, kathryn p. Apr 12, 2017 grounding and bonding for the radio amateur arrl inc, h ward silver n0ax on. Arrl get on the air with hf digital second edition. Article 250 grounding and bonding mike holt enterprises. This time it is about grounding, bonding, and eliminating hum, buzz, and rfi. Ward silver, n0ax, lead editor for the arrl handbook and the arrl antenna book, and author of grounding and bonding for the radio amateur, arrl s handson radio experiments, and arrl license manuals.
Grounding electrode system and grounding electrode conductor part iii znec 250. Youll learn effective grounding and bonding techniques for home stations, including condos and apartments, portable and temporary stations, as well as towers and outside antennas. Connect the grounding wires as shown above only if there is a grounding wire. Dick, k5and and jimmy, w6jkv were the founders of the six meter bbq and almost all of the past bbqs were held at their qths. Connect a 6inch bare copper or green 12 or 14 awg wire to the grounding terminal on the gfci.
This time it is about grounding,bonding, and eliminating hum, buzz, and rfi. Station grounding is a technical topic and is bound by the laws of physics. Soares book on grounding and bonding, the installation of a lightning protection system is much. Grounding and bonding for the radio amateur grounding and bonding for the radio amateur by ward silver, is now available from arrl. Proper station grounding is important build your ham radio station. Arrl grounding and bonding for the radio amateur tia 607b motorola r56 ieee is an association of professionals. Along with effective receiving and transmitting, a stations design must address three important electrical requirements. The american radio relay league arrl is the national association for amateur radio, connecting hams around the u.
Heavily plagiarized from ward silver n0ax presentation at dayton this year. Competitive analysis, marketing mix and traffic alexa log in. Arrl american radio relay league awg american wire gauge hf high frequency. From there, you should have a ground rod every 8 feet and take that back to house ground with heavy gage wire. Lightning elimination dissipative arrays for antenna towers. There is a very good writeup on the arrl website called grounding. Here are a list of technical articles on grounding and. Antenna system bonding and grounding requirements in the usa whitham d. Guidelines for grounding and bonding telecom systems feb 1, 2012 matt peterworth, rcdd, p. After antennas, station grounding is probably the most discussed subject in amateur radio and it is also the one replete with the most misconceptions. Considerable confusion seems to surround power and grounding for audio and audiovideo systems. Grounding of electrical systems outline zdefining the terms zwhy should i ground. Rf ground and electrical ground are not the same there are a number of lessons to be learned on this subject, not the least of which is the difference. If you do not connect your grounds you set up a potential difference.
Grounding and bonding for the radio amateur arrl inc, h ward silver n0ax on. Low impedance to ground at antenna base high inductive impedance to next stage low impedance to gdground at entry low impedance to ground for each radio and piece of equipment. Principles of electrical grounding john pfeiffer, p. Get traffic statistics, seo keyword opportunities, audience insights, and competitive analytics for laarrl. Arrl technical grounding and bonding for the radio. Power and grounding for audio and video systems a white paper for the real world international version jim brown audio systems group, inc.
Arrls grounding and bonding for the radio amateur 0659. Pay careful attention to the definitions that apply to grounding and bonding both here and in article 100 as you begin the study of this important article. Grounding and bonding for the radio amateur arrl inc. Locating and killing receiver interference gary johnson, na6o august, 2019 wb9jps. You can discuss different techniques all day, but in the end, it all comes down to understaning the electrical principles. Soares book on grounding and bonding, th edition nec. Nec on grounding ground neutral at breaker panel only tie all grounds to a single point inspect at least annually. Lightning facts channel through air carries charggecurrent 50,000. The links below are out of my presentation at the dara meeting january 6, 2018 actually friday january 5, 2018. Technical grounding and bonding for the radio amateur arrl. This is a discussion of the basic principles behind grounding systems and how grounding is related to safety and the effective operation of circuit protection devices such as fuses and circuit breakers.
If in doubt, get help local code additions matter avoidance can cancel your insurance payout be careful120 vac can kill you. Series of articles on grounding on the hard core dx website. Download it once and read it on your kindle device, pc. Soares book on grounding and bonding, th edition nec 2017. Use features like bookmarks, note taking and highlighting while reading grounding and bonding for the radio amateur.
Bonding all building grounds breaker panel ham shack tower telco cable tv cold water ground rods radials grounding is for safety lightning protection. There is also a host of other publications available from the ieee, military and even the faa has a standard. Grounding and bonding for the radio amateur 1, inc. Final thoughts its just a matter of time when your home and radio shack will be hit by. W5bwc electronics 9108 fm 1972 gilmer, tx 75645 8111. If the box has a grounding terminal, also connect a similar wire to the grounding terminal on the box. Antenna system bonding and grounding requirements in the.
The arrl handbook covers the topic in the safety chapter, and there are a number of articles in the arri web sites technology section grounding and bonding. Grounding, bonding, safety, rfi by bill mader, k8te high desert. A connection to earth almost never reduces noise or rfi, and it will often make it worse, because the ground wire can act as an antenna. Station grounding for amateur radio the kxqrp 2nd lk is an accessory for use with the elecraft kx2 or kx3 radios. Unexplained noise can creep into station systems where ground systems develop high resistance or noisy connections to ground due to corrosion and. Jim brown, k9yc, sent this photo of grounding jumpers green wires in the back of a nice portable station built by glen brown, w6gjb, for the california qso party. Although not specifically discussed in this article, nfpa 780, standard for installation of lighting protection systems, is a worthwhile reference and includes highly detailed information. Antenna system bonding and grounding requirements in. Lightning protection is a safe investment for any station. Today, with approximately 170,000 members, arrl numbers within its ranks the vast majority of active radio amateurs in the nation and has a proud history of achievement as the standardbearer in. The arrl offers the publication grounding and bonding for the amateur. Grounding and bonding for the radio amateur learning the terms if you arent familiar with the how and why of amateur sta tion ground systems, you can read up on the subject. Antenna system bonding and grounding requirements in the usa.
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