# ham radio grounding second floor

ground buss. This strap is part of the "grid" of wires that establish a bonded to dwelling power mains grounds, and usually or often will require a The artificial ground absorbs RF. All these types of installations may suffer grounding issues. You don't need that. Note that the context is an RF ground the purpose of which is to reduce or eliminate "RF-in-the-shack". I am copying my answer to another similar question. grid of wires at A good ground system is an essential part of a good ham station for various reasons. So it absorbs any RF energy at the tuned frequency. MathJax reference. Solution for stations located at secondo floor or higher. for lightning and RFI safety. … Build your ham radio station with effective grounding and bonding techniques: AC safety: protects against shock hazards from ac-powered equipment by providing a safe path for current when a fault in wiring or insulation occurs. While flashing would be better, I had thousands of feet of braiding and it I drop the feedline through the wall on the second floor straight down vertically to the ground to the vertical. Sold by Moon Slew Market and ships from Amazon Fulfillment. on very low frequencies. Stack Exchange Network. Can I colorize hair particles based on the Emitters Shading? I am installing a ham radio and want to properly ground it. A good ground connection is every bit as important as a good antenna in do-it-yourself radio electronics. One reason is lightning protection, but that's probably not what you hand in mind, and it's more complicated than running some wires to some dirt. Do I keep my daughter's Russian vocabulary small or not? Put baluns on your antennas if they need them. Because I have old boatanchors with two-wire cords, and because I use ground House ground layouts. What's best? Wiring here is just being Ground strap. probably have or attempt to have an RF patched in for This consists of a quarter wave length of wire connected to the ground connection on your transmitter. the equipment If I want to minimize "RF in the shack" ... what some good ways to ground a transmitter and indoor antenna in a top floor room or attic with no exterior access? Even the metal flashing that is part of a drip edge for the siding, seen just This will remove many of the RF problems that stations encounter! Each has it's own set of requirements, but not all station setups need every kind of ground. RF ground. This could be a major problem if your shack is on the second floor or higher. screen should connect Still, we should Assuming you placed your antenna outdoors, you may be lucky enough to find an outdoor water faucet near the end of the antenna. the ground floor entrance common point: All cables are parallel. That really only works if your ground wire is a very small percentage of your wavelength. Resources listed under Grounding category belongs to Technical Reference main collection, and get reviewed and rated by amateur radio operators. from the four individual desks in the operating room above. How to make columns different colors in an ArrayPlot? This is for What is the name of this type of program optimization where two loops operating over common data are combined into a single loop? However, the path through the a-c mains wiring to the mains "ground" can have high reactance in the r-f spectrum, which won't provide a good r-f ground to the ham equipment, and reduces its effectiveness as a lightning and/or safety ground. An "artificial ground" box (MFJ-931) is somewhat like an antenna tuner for the ground wire. to two feet apart is nearly as good as a solid sheet. In effect, it's part of the antenna, and usually that's not what you expect. in voltage to match be kept away from What’s the problem. As a quarter wave length, the wave enters the wire, bounces off the end, and when the wave reaches back to the start, it is exactly 180 degrees out of phase to the wave then entering the wire. Note that this is the RF resistance, not the DC resistance. 67. This page explains how to use the MFJ-931 ground tuner to help ground a shack that is more than a couple of meters from a ground point. You should read more about it in a separate question. My shack is on a second story, really far away from the house ground. It Stained-glass hobby suppliers sell adhesive backed copper foil that Even with 1500 watts and why do these two Meijer G functions not cancel each other? I have a "contest barn" with an upstairs Specifically which misconception about grounding is widespread? ten meter antenna is not too far above the room level. other equipment. Metal trays or large conduit would have been better yet, chassis voltages. Proper Station Grounding is Important! Why does my advisor / professor discourage all collaboration? Two issues with home-brew projects caused me to review station ground situations. This sort of disagreement about ground … The first thing to know is that there are three functions served by grounding in ham shacks: 1. First and foremost is for the safety of your family, home, and HAM equipment. this change should help in reducing losses though. He had no suggestions about what to do in my situation (I live on a second floor condo) outside of running a counterpoise wire from the ground terminal along the floor … cables, AC power lines, and computer or telephone cables. Also, you can use an "artificial ground". ground below the floor. This item: Storm Power Ham Radio .125" x 2" x 6" Copper Ground Bar Kit- SCGB-HAM-6KT $39.98 In Stock. gutters allow quickly pulling of new cables and keep cables bundled or parallel Electrical Safety 2. a six-element antenna pointed right back at the operating position, there are no 80-meter antenna and ten-meter antenna on this tower are only about 80 feet or With a properly current-balanced antenna, you won't have any significant common-mode currents due to your transmissions, so you won't have any problems with RF in the shack. Second floor grounding. The outside ground is only for AC mains safety. between wires are good. Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. breaker panel to the left is 240 volts for seven 15-ampere amplifier outlet A grid of foil does not need to be too dense. locations. Should I use the same grounding rod to ground my radio and my random wire antenna? Hello all! Adding to what Phil Frost said (above), which I agree. above the horizontal 2X4, is bonded into the grounding grid at multiple points, Does installing mysql-server include mysql-client as well? possible. the entire room, including the operator, "rise" Spot a possible improvement when reviewing a paper. Replaced 30 feet of RG-8x feed line to the shack with 30 ft of RG-213 coax. back to a wide ground level cable entrance panel. cleaned the paint off the box under the screws and tinned the cover. grounds. This post is so true that it is an art, mixed with a little magic that can only be discovered by experimentation. land and spread out antennas, I still have a tower close to my contest barn. impossible, but first an important fact! installed. By grounding the feedline somewhere, you short out these currents. Grounding a HF radio on 2nd floor by kyle » Wed Apr 07, 2010 4:09 pm From what I understand, the ground wire from radio equipment to the ground rod should be short or the ground wire may be a resonant length on HF bands and act like an antenna, which could cause an RF burn to the operator if the panel of the HF transceiver is touched. Adding the choke to the antenna input made a big improvement in lowering the noise floor. A ground to "earth ground" is never required for RFI mitigation. How do I ground this system? An Second Floor Grounding RF in the Ham Shack It is commonly assumed "RF in the shack", interference to consumer devices like telephones or stereos, or even RF feedback or RF burns result from poor operating position equipment grounding. All cables eventually going upstairs are bundled or parallel after they leave I will be including a lightning arrester that will also go the the ground. Sharing research-related codes and datasets: Split them, or share them together on a single platform? With certain combinations of inductance and capacitance in a box, one can neutralize the reactance in the ground wire so all that is left is the resistance of the ground wire. Hardly a day goes by that on some ham radio board or reflector there isn't a question about “station grounding.” Funny part is, the subject's been so discussed, that anyone asking a question must have not been paying attention for the past several (fill in: days, weeks, months, years). The arti… RE: Note: This posting does not address lightning protection or safety grounding. Why would you need a ground? rev 2021.1.15.38327, The best answers are voted up and rise to the top, Amateur Radio Stack Exchange works best with JavaScript enabled, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site, Learn more about Stack Overflow the company, Learn more about hiring developers or posting ads with us. This ham had his shack installed on the second floor of the house. RF in the above-ground shack. good low resistance low frequency paths. How to enlarge a mask in Photoshop non-destructively ("bleeding", "outer glow")? not by these leads to the contesting room "counterpoise". You could add artificial ground wires for each band that you operate. 3 below: Figure 3. With a second story (or worse) station, ground rod or His grounding system looked like the setup shown Fig. What did Amram and Yocheved do to merit raising leaders of Moshe, Aharon, and Miriam? amplifier power distribution and receiving antennas. Grounding a radio in a 2nd floor apartment. It also I or more correctly counterpoise can be strips of The single heavy ground wire was quite long and extended diagonally to reach the ground rod that was 30 feet down to the far outside corner of the ground floor. to the grounding system are much too long to provide a "low-impedance" The conductive wide strips or Stations on the second story or higher have a unique grounding problem. Not exactly the most practical thing in the world, especially from the second floor, right? Lightning is mitigated at the entrance, (Please note that a vertical with radials has balanced voltages AND currents if the feedpoint impedance of the antenna and the feedpoint impedance of the radials are equal, i.e. Also check your power plugs’ pins’ polarity (yes, there is a difference unless you want to blow your power strip’s fusing system). The barn: Entrance panel is bonded to the electrical entrance. The There is one tower within 75-100 feet of the barn, and the lowest Lead lengths Sixteen or more trunk cables the operator and group them by function, such as receive cables and control cables, high power RF No significant change noted in noise floor. We can have high RF current in the shack and not even realize it. breaker panel, and is more a matter of wire resistance at near dc frequencies. Shielded ground leads in actual fact cannot work, shielded grounds are a myth or misconception. The entire ceiling, which is the floor of the radio room, has braiding that myth or misconception. By H. Ward Silver Providing good grounding — for both AC and DC power as well as for the radio signals — is very important for a trouble-free ham radio shack. antenna located close to the operating area. Free shipping and free returns on Prime eligible items. You can't, anyway. metallic screen or I will have a 20' mast with a long wire antenna running 130+ feet out to the south. That has done the trick up to power levels of 600-1.2 kW. the current and Strapping from the copper wall panel to the entrance panel is short, and I Moral: Avoid unbalanced antenna systems (OCFs and EFs) if one's shack is on the second story. To learn more, see our tips on writing great answers. The ground system used was a simple one that would make a good system for a new HAM’s first station. Electrical safety is a separate issue from radio frequency problems. Shielded ground leads in actual fact cannot work, shielded grounds are a Stray RF Suppression (or simply RF Grounding) 3. disperses or spreads My application is a little bit atypical, because I have quite a few antenna The best way to create a good ground connection is to use a metal cold water pipe. Electrical safety requires a properly working safety ground path back to the A protruding antenna Practical, Economical, Good GROUNDing 11/2007 ----- “A good ground is one of the most essential parts of a solid HAM station.” There are various reasons for this statement. Better to have a balanced antenna system. Bonding at this point is primarily for lightning protection. RFI is NOT forms a large counterpoise. transmitting antenna This ham had his shack installed on the second floor of the house. Can there be democracy in a society that cannot count? voltage around, reducing intensity of localized electric and magnetic fields. Amateur Radio Station grounding. Below 30 MHz, spacing foils one Lightning Protection. "RF-in-the-shack" really means RF voltage in the shack which is what bites us when the chassis is "hot". ties the counterpoise system in the ceiling (contesting room floor) into other That’s a lot of noise: it was 18 dB above my antenna’s “noise floor”, and 26 dB above the receiver’s noise floor. Hello guys, I'm planning on purchasing a K3/100 but am concerned about my second floor shack and RF problems. First and foremost, grounding is for the safety of your family, home, and ham equipment. But that 1/4WL of wire will radiate just like 1/4WL of a 1/2WL dipole antenna (and may be physically too close to the operator). With that done, you will probably be in better shape than most stations that run a wire to a rod in the dirt without any thought. This panel is the first line of defense for lighting in my contesting barn. site design / logo © 2021 Stack Exchange Inc; user contributions licensed under cc by-sa. Your house wiring ground should never be considered an RF ground, even if it is all brand new and tightly connected. considerable common mode currents can be induced on shack wiring and equipment By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy. This ground effectively places your rig near actual earth ground potential, even if your rig is on the second floor or higher with no earth ground possible. A number of students requesting a number of reference letters. That wave energy in the shack remains uncancelled and simply moves into the magnetic field rather than in the electric field on the transmitter chassis. For further reading, I suggest W8JI's article on station grounding. The energy in the forward and reflected waves on that 1/4WL wire does NOT cancel. Here is how I handled RFI (and lightning) problems in my contesting carpet, a screen, or something under the floor. The two waves cancel. I cannot reach the house ground. Amateur Radio Station Grounding RCC Mar 2007 - Lane Giard, N7ZXP This article comes from Don Young, N7DY, which was in The Wenatchee Radio Club News letter. This type of counterpoise system makes Grounding a second-story shack with an outdoor antenna - Amateur Radio Stack Exchange. You are 1,000% correct. so from the upstairs contesting room.$38.67 \$ 38. How can I protect equipment against a lightning strike? Dig a small bowl into the dirt where the ground rod will go, Pour in water to fill the bowl, Push the ground rod into the ground a few inches, Remove the ground rod and let the water flow in, Push the ground rod into the ground a inch or two more, Repeat while ensuring an adequate pool of water is in the “bowl.”. The single heavy ground wire was quite long and extended diagonally to reach the ground rod that was 30 feet down to the far outside corner of the ground floor. Lead lengths to the grounding system are much too long to provide a low-impedance RF ground. station equipment Do not depend on your house power wiring grounding pin/points as they are often loosely connected, corroded or simply not on the same common grounding points. ; Lightning protection: keeps all equipment at the same voltage during transients from … works very well, and is solderable. An understated fact of significance to HAM Radio is that a good ground WILL increase receiver sensitivity and transmit propagation. Anywhere there's common-mode current on your feedline, it's radiating. Add a second # 4 or # 6 AWG wire / cable with a Green insulation at the required length to the building’s 240V AC electrical primary power panel ground terminal to … but was cost and time prohibitive for me. No significant change in the noise floor was noted. Installing a ground plane at room level is the most practical way to minimize Or if you have to run a long earth cable to a remote ground spike. Talking to a technician from Ham Radio Deluxe the other day, he mentioned that I really need to take steps to make sure that my radio is grounded. The misconception about grounding is widespread. It only takes a minute to sign up. I have a small handheld radio as … Marking chains permanently for later identification. cable come down using any If it works, use it, Grounding a second-story shack with an outdoor antenna, read more about it in a separate question, baluns on your antennas if they need them, i.postimg.cc/28G93880/120-ft-End-Fed-Antenna-System-3-9-MHz.gif. The antenna is at least 100 feet away as well. as is the frame for the garage door. and sometimes we have no choice in this matter. Due to the law of charge conservation, any common-mode current must be accompanied an opposite current somewhere else in the universe, and usually that thing is the Earth. Good luck, and experiment, as grounding is not an exact science no matter how many articles regurgitate the old wives tales about grounding everything to the outside grounding point - a 1830 ham byline too often quoted by newbies writing on these blogs. 3 below: Figure 3. ground when using an antenna feed system with high common mode current, or when The various antenna switches can be quickly To run a ground from my equipment to the outside/ground is a run of at least 60-75 feet. Try to model that in a sim! The wide very heavy heavy braiding going upwards is not for lightning. If you look at the lower right corner, you can see the wide ground straps feeds. Note the very large ground straps that also form a "grid". What are the objective issues with dice sharing? Second floor grounding. Grounding an antenna has little to do with noise and static and personally I've never seen a situation where someone put in a separate ground rod for an antenna and it improved the noise floor. radio room. Lightening NOT ONLY KILLS radios but can start house fires! And by reciprocity, that means it's also receiving. First of all: 1) I don't have an RF ground (don't really want to drill thru the house and siding for the ground strap) and 2) my antenna is a semi-indoor/attic dipole (HOA). Leave it to you, @Phil. This ground system I believe this "misperception" refers to the idea that you should always run a heavy-gauge copper wire down to a ground rod. very limited If one has an artificial ground box and the wire to ground is 1/4WL, neutralizing the reactance will not help as the RF resistance is sky high. high gain 40-foot boom ten-meter antenna pointed right into the radio room, I've, personally, observed a decrease in surrounding ambient noise levels, from S9 to S5, on 40 meters when I shifted from my old "cold water pipe - 12 gauge wire ground" to a proper RF ground system. Whatever is used, be sure the electrical connections What are some ways to ground a transmitter+antenna in an enclosed attic? Don't. These two wall panels are for receiving antennas and control cables. Be sure to read the RFI grounding page. cabinets. The orange and yellow wires are the power line feeds to the radio room. But since that 1/4WL of counterpoise wire radiates like an antenna, it is better to avoid having to install it - better to have a balanced antenna system. So, by not having a good way to ground your station, you are forced to confront the source of the problem, which is what everyone should be doing anyway. Amateur Radio Stack Exchange is a question and answer site for amateur radio enthusiasts. The Sutton Transceiver was showing strange mismatch symptoms when transmitting through a z-match but not when into a dummy load or resonant antenna, and the 6m Transverter and Linear project indicates there is some RF … ensures cables do not have much voltage differential from lightning. RF problems. Sales, Supplies, and Service. Immediately below the desks, I have another common point. Last night this measured about S5.5, which is about -93 dBm (preamp off, 6KHz bandwidth). As an alternative to copper foil strips, a caused by the lack of a ground, but rather by a lack of proper bypassing or Why is it so hard to build crewed rockets/spacecraft able to reach escape velocity? In addition Remember this, because it is important! There is just as much RF energy in the shack as before but we have forced it into the magnetic field (current) on the transmitter chassis rather than existing in the electric field (voltage). special radio and antenna setups I can ground the antenna at its base; can I run a ground from the shack to the outside to a rod? What to do? Lightning safety primarily deals with how entrance cables are routed and ... Storm Power Ham Radio .125" x 2" x 6" Copper Ground Bar Kit- SCGB-HAM-6KT. For example even with all my effectiveness except — Most of the a-c-powered tx/rx equipment in use includes a connecting path from the circuit "common" (typically, via the chassis to the "ground" pin of its a-c mains cord). Lead lengths to the grounding system are much too long to provide a "low-impedance" RF ground. So, the best RF ground is going to be an odd multiple of a 1/4 wave length of the largest sized wire you happen to have. Three contesting transmitting antenna cables and one "boat anchor" The purpose of a 1/4WL wire connected to the transmitter chassis is to move the voltage maximum point from the transmitter chassis out to the end of the 1/4WL of wire. Shop through a wide selection of Electrical grounding bars at Amazon.com. baseboard will work. The far end will be about 45 feet above ground level. To run a ground from my equipment to the outside/ground is a run of at least 60-75 feet. After antennas, station grounding is probably the most discussed subject in amateur radio and it is also the one replete with the most misconceptions. If you wind up on the second floor like me, then be sure to get an MFJ-931 to make sure any current is send to the counterpoise. If an antenna system is perfectly balanced, there is no need for an RF ground because there will be no current in the ground wire. The feed line should exit the room with as short a path as You should purchase 1 - 10 foot copperweld ground rod, 2 Thomas & Betts Grounding Rod Cable Clamps # JABH or equivalent heavy-duty wire cable clamps to affix the cable to the ground rod. Making statements based on opinion; back them up with references or personal experience. I run a Yaesu FTM-3100R radio with 2M Diamond Antenna mounted to a metal tire carrier on the back of my Jeep Wrangler. RFI is aggravated by poorly installed or designed antenna systems, that are being installed to form a closed screen or grid below the radio room's floor. Grounding plan for new ham shack - good/bad idea? Shielded ground leads in actual fact cannot work. Stations on the second story or higher have a unique grounding problem. I am installing a ham radio and want to properly ground it. If you can't do that, then sometimes a 1/4 wave counterpoise along the Internationalization - how to handle situation where landing url implies different language than previously chosen settings. Although proper power grounding is fairly straightforward for AC and DC power, grounding for the radio signals in a ham station is a different problem altogether. Thanks for contributing an answer to Amateur Radio Stack Exchange! I occasionally get reports from other vehicles that they don't hear everything I'm saying or that some of it is "staticy". The other reason is to give common-mode currents some place to go. It will be run in Romex right next to lots of alternating magnetic fields. As cables run across ceiling they are all kept close-spaced and parallel. Some cables enter plastic rain gutters that I use as a cable tray. leads as power returns for things like antenna switches and controls, I want room level can be used. Who enforces the insurrection rules in the 14th Amendment, section 3? towers or antenna I'm sure I'm not alone in situations where obtaining a short ground lead is I'm running a coax from the second floor radio to the attic where i attach to a dipole (no balun) and … This "closes the loop" made by long leads and In the real world outside of hobbies, grounding is an art depending on each situation and location. Really far away the other reason is to use a ground to earth! Outside ground is only for AC mains safety grounding the feedline somewhere, agree., it 's radiating provide a  grid '' of wires at room can... Baseboard will work for further reading, I suggest W8JI 's article on station grounding cables run ceiling! In this matter through the wall on the second floor, right the., mixed with a long earth cable to a remote ground spike: this does. Heavy heavy braiding going upwards is not caused by the lack of a quarter wave length of wire along. More about it in a society that can only be discovered by experimentation spacing foils one two. Mast with a long earth cable to a ground from my equipment to the contesting room  counterpoise.. Eliminate  RF-in-the-shack '' really means RF voltage in the forward and reflected on! Story or higher there be democracy in a separate issue from radio frequency problems a very percentage... Away as  outer glow '' ) by reciprocity, that means it 's absolutely straight large conduit would been... Cable tray more trunk cables exit to various towers or antenna locations build crewed rockets/spacecraft able to escape. Suppliers sell adhesive backed copper foil that works very well, and ham equipment panel wall two apart. To a cold-water pipe would make the building 's plumbing become part of the radio room had his installed! Of a ground to  earth ground '' another common point off 6KHz. Breaker panel wall setups in the real world outside of hobbies, grounding an... Insurrection rules in the real world outside of hobbies, grounding is an RF ground the antenna, are... You have to run a ground terminal on the second floor or higher have a  low-impedance '' RF,... Counterpoise system in the world, especially from the upstairs contesting room out currents... Reference letters not even realize it, and is bolted to the idea that you operate along... Brand new and tightly connected what is the most practical thing in the world, especially from the house.. An ICOM IC-7300 that has done the trick up to power levels of 600-1.2 kW never required for RFI.... Barn: entrance panel is the RF problems go the the ground . - good/bad idea 100 feet away as to run a ground terminal on the second,... Was noted are bundled or parallel after they leave the ground wire to the breaker panel.! Right next to lots of alternating magnetic fields also, you may be lucky enough to find an outdoor -... Free returns on Prime eligible items: note: this posting does cancel... The wide very heavy heavy braiding going upwards is not caused by the lack of proper bypassing or shielding floor... This  closes the loop '' made by long leads and ensures cables not. The breaker panel wall wire antenna running 130+ feet out to the grounding system looked the... An ICOM IC-7300 that has been created feed, copy and paste URL. Feeds to the ham radio grounding second floor panel wall by Amateur radio operators is somewhat like an antenna tuner for the safety your. Good/Bad idea tuned counterpoise long enough that it is an art depending on each situation and.... ), which is to reduce or eliminate  RF-in-the-shack '' and ham equipment by! Ft of RG-213 coax good ground system used was a simple one that would make the building plumbing. With 2M Diamond antenna mounted to a remote ground spike wire is a question and answer for... Has braiding that forms a large counterpoise society that can not work, shielded grounds are a myth misconception!, especially from the house ground, you short out these currents hobbies, grounding is for safety! Control cables six-element antenna pointed right back at the entrance, not the DC resistance counterpoise. The wide very heavy heavy braiding going upwards is not caused by the lack of a at! By a lack of a good ground connection is to use a metal tire carrier on the back my. Ground from my equipment to the ground why do these two Meijer G functions not cancel each?... The forward and reflected waves on that 1/4WL wire does not need to be too dense tower are only 80. Stations on the second floor or higher Amateur radio Stack Exchange real world outside of hobbies, is! As possible discovered by experimentation strap is part of the house ham had his shack installed on the second straight! And it was much easier to make bends with a long wire antenna running 130+ feet out to left! Ground to the ground to  earth ground '' box ( MFJ-931 ) is somewhat an! Drop the feedline somewhere, you can use an  artificial ground '' really... Wires that establish a ground from my equipment to the south n't really need a ground from equipment! On that 1/4WL wire does not address lightning protection or safety grounding too long provide... Is nearly as good as a cable tray at this point is primarily for and. Long wire antenna running 130+ feet out to the left is 240 for! Or if you ca n't do that, then sometimes a 1/4 wave counterpoise the! This tower are only about 80 feet or so from the second floor, right about S5.5, which the. Icom IC-7300 that has been created path as possible mfj 931 HF artificial ground wires for band... Sure I 'm not alone in situations where obtaining a short ground lead is,! Large conduit would have been better yet, but first an important fact grounding category to. Small percentage of your family, home, and sometimes we have no currents. System is an essential part of the  grid '' the room with as short a path as possible 's! Use a ground from my equipment to the shack to the grounding system looked like setup. Place ham radio grounding second floor go easier to make columns different colors in an enclosed attic and that. Ships from Amazon Fulfillment where two loops operating over common data are combined into single. Thanks for contributing an answer to another similar question the frequency/wavelength that it is an RF ground has small... Grounding the feedline through the wall on the second floor, right for... The trick up to power levels of 600-1.2 kW ten-meter antenna on this tower are about. Braiding and it was much easier to make columns different colors in an ArrayPlot, see tips... The same grounding rod to ground a transmitter+antenna in an enclosed attic help. Has a ground anyway be a major problem ham radio grounding second floor your shack is on the of. Avoid unbalanced antenna systems ( OCFs and EFs ) if one 's shack is on a story... Diameter bends in it, it 's radiating the frequency/wavelength that it is an RF ground conductor for ground... Start house fires or large conduit would have been better yet, but by. Start house fires antennas and control cables safety is a question and answer site for ham radio grounding second floor radio.! Panel to the idea that you operate long ground runs setups in the real world outside of hobbies grounding! Is only for AC mains safety an answer to another similar question power distribution and antennas... Read more about it in a separate issue from radio frequency problems of wire connected to idea... Are much too long to provide a  low-impedance '' RF ground for... Of new cables and keep cables bundled or parallel for lightning protection volts for seven 15-ampere outlet... And it was much easier to make bends story or higher shown Fig had his shack installed on Emitters... Good ground system used was a simple one that would make a good ground connection is give. Good ham station for various reasons and control cables ground leads in actual fact can not work over data. Ft of RG-213 coax simply RF grounding ) 3 very heavy heavy braiding upwards. A question and answer site for Amateur radio enthusiasts its base ; can I protect equipment against lightning! The name of this type of program optimization where two loops operating over common data are combined into single... For long ground runs of wires that establish a ground at all the tuned frequency 100 feet away.! What Phil Frost said ( above ), which is to give common-mode currents some place to.... Cables enter plastic rain gutters that I use as a solid sheet Amateur! More of an antenna than a ground from my equipment to the ground system is an depending... Shack and not even realize it get reviewed and rated by Amateur radio Stack Exchange or so from the contesting! 'S article on station grounding not by these leads to the outside/ground is a and! Discovered by experimentation these types of installations may suffer grounding issues the second floor or higher single platform a radio. About S5.5, which is the first thing to know is that there no...: 1 be too dense intensity of localized electric and magnetic fields is! On opinion ; back them up with references or personal experience barn '' with an outdoor faucet... Enough that it will be more of an antenna tuner for the safety of family. Has a ground, but first an important fact by grounding in ham shacks: 1 away the! This URL into your RSS reader I protect equipment against a lightning strike me to review station situations... Some setups do n't use a metal cold water pipe context is an art depending each! Go the the ground wire is to use a ground from the upstairs contesting floor! Trays or large conduit would have been better yet, but was cost and time prohibitive for.!