RE: [Repeater-Builder] grounds cadwelding
My plan was to use copper 6 strap running from my bench about 8 feet to two ground rods outside, each about 8 feet apart. I then wanted to cadweld the copper strap to the ground rods. Inside, I am going to connect the ground strap to a ground cable running to the breaker box. I have to say I like that idea. I haven't done enough with the nice copper ground strap since my AM broadcast days other than running the length of my sailboat. It may seem excessive but it is a great path to ground. I would consider bonding the two ground rods to the utility ground for the house. I'd have to look to be sure, but I believe it is code that any additional ground rod be bonded to the main ground system. While you are talking about doing that in the house with a run to the breaker panel, I believe it may be more correct to bond them outside around the perimeter of the house. Anyone have any better ideas or suggestions? Anyone have any experience using cadwelding to bond ground strap to a ground rod? I believe it is polyphaser that makes a nice little kit that makes the transition from flat strap to a round ground rod, though I don't know that it is a cadweld solution. Perhaps someone else has some ideas, but you are off to a great start! 73 Daron J. Wilson, RCDD ) ) Telecom Manager ( ( LH Morris Electric, Inc. ) ) (541) 265-8067 office _|| mmm! (541) 265-7652 fax ( || coffee! (541) 270-5886 cellular \|| [EMAIL PROTECTED]|| thanks Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] grounds cadwelding
John, A six-inch-wide copper strap may be overkill, but it certainly will have broadband grounding functionality. You will probably have some difficulty in transitioning to and from the strap when connecting to the ground rods and the equipment. You can get some excellent guidance from Erico, the manufacturers of Cadweld products, at: www.erico.com Erico has a lot of experience in designing grounding systems for RF transmitters, and their One-Shot welding products can make genuine exothermic welds between rods and wire, without the special molds. Most One-Shot kits are available from TESSCO and other distributors specializing in commercial radio supplies. 73, Eric Lemmon WB6FLY JOHN MACKEY wrote: I am getting ready to install a ground system in my house. This is to support my radio equipment for HF and V/UHF. My plan was to use copper 6 strap running from my bench about 8 feet to two ground rods outside, each about 8 feet apart. I then wanted to cadweld the copper strap to the ground rods. Inside, I am going to connect the ground strap to a ground cable running to the breaker box. Anyone have any better ideas or suggestions? Anyone have any experience using cadwelding to bond ground strap to a ground rod? thanks Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] grounds cadwelding
Daron- In my situation my radio desk will be about 4 feet from the breaker box, which is about 2 feet from the power meter outside where the AC feed for the house is. My ground connection was going to be immediately below the breaker box AC feed. My connection to the AC ground system is obviously right there at that point. Since I work in broadcasting, that is where I got the idea of using copper strap. Daron J. Wilson [EMAIL PROTECTED] wrote: SNIP ground. I would consider bonding the two ground rods to the utility ground for the house. I'd have to look to be sure, but I believe it is code that any additional ground rod be bonded to the main ground system. While you are talking about doing that in the house with a run to the breaker panel, I believe it may be more correct to bond them outside around the perimeter of the house. Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] grounds cadwelding
Hi John, I know a lot of people out there will find all good reasons to disagree with what I am about to say, but take a poll and see how it comes up. I have seen plenty of damage done in my days of commuincations, and the best damage done was the one with the most grounds. They say you can never have to much grounds, but if you put food out for the stray dog, it's gonna come eat. Make an earth ground for the radios for discharge purposes, but over kill will kill you. Knock on wood, I have not been hit in 30 yrs of radio playing, but I have had a lot of friends who have. To the extent that one had his entire antenna system melted and shattered off his tower, with 3 big ground rods, tied to hi home electrical system. He feels bad, reason, he worked 40 yrs as an electrical engineer. Good Luck. Mathew - Original Message - From: JOHN MACKEY [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Monday, June 14, 2004 10:07 PM Subject: [Repeater-Builder] grounds cadwelding I am getting ready to install a ground system in my house. This is to support my radio equipment for HF and V/UHF. My plan was to use copper 6 strap running from my bench about 8 feet to two ground rods outside, each about 8 feet apart. I then wanted to cadweld the copper strap to the ground rods. Inside, I am going to connect the ground strap to a ground cable running to the breaker box. Anyone have any better ideas or suggestions? Anyone have any experience using cadwelding to bond ground strap to a ground rod? thanks Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] grounds cadwelding
Daron- In my situation my radio desk will be about 4 feet from the breaker box, which is about 2 feet from the power meter outside where the AC feed for the house is. My ground connection was going to be immediately below the breaker box AC feed. My connection to the AC ground system is obviously right there at that point. Well that makes sense, I'm sure you're striving for the shortest path and least resistance to ground. Makes sense for your description of the installation, now all you need to find is the right hardware for the cadweld portion and you are set. 73 Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
RE: [Repeater-Builder] grounds cadwelding
Daron J. Wilson [EMAIL PROTECTED] wrote: SNIP installation, now all you need to find is the right hardware for the cadweld portion and you are set. Daron- Yea, the problem is that I looked on the web site for the manufacturer of Cadwelding found several forms, but none ground rod to 6 strap. :-( Anyone know of one? Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] grounds cadwelding
In other words, you can't beat a good *single point* grounding system. That's what Polyphaser endorses, and myself as well. I had a brand new (3-week old) RC-850 turned into toast, as well as damage to several MASTR IIs and duplexers. After re-thinking the grounding, and 20 years later, I've had maybe $10 in parts replaced - mostly temperature sensors and associated parts. It's hard to believe that's only a coincidence. I'm sure adding the polyphaser suppression had a lot to do with it too, but I still have to believe that changing to a single-point ground helped a lot. Joe M. Mathew Quaife wrote: Hi John, I know a lot of people out there will find all good reasons to disagree with what I am about to say, but take a poll and see how it comes up. I have seen plenty of damage done in my days of commuincations, and the best damage done was the one with the most grounds. Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] grounds cadwelding
For a lightning ground to be effective, the wire/strap from the equipment to be protected to the actual ground rod should be less than five feet. The distance between ground rods should be twice their length. All connections outside the building should be cad welded. All outside grounds should be a minimum of #2 copper and inside grounds a minimum of #6 copper. This information comes from the Motorola R-56 manual for site selection and MIL HDBK 419. In my previous job I had to investigate grounding issues and I can attest to these minimum requirements. If you need additional information on this, contact me at the address on the header. 73 Glenn WB4UIV At 01:07 AM 06/15/04, you wrote: I am getting ready to install a ground system in my house. This is to support my radio equipment for HF and V/UHF. My plan was to use copper 6 strap running from my bench about 8 feet to two ground rods outside, each about 8 feet apart. I then wanted to cadweld the copper strap to the ground rods. Inside, I am going to connect the ground strap to a ground cable running to the breaker box. Anyone have any better ideas or suggestions? Anyone have any experience using cadwelding to bond ground strap to a ground rod? thanks Yahoo! Groups Links Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
Re: [Repeater-Builder] grounds cadwelding
John, Your idea sounds great for an RF ground system for your radios, however, it will now leave you radios as a ground path from the house, power lines, phone etc., to the great new ground. Be sure to disconnect all equipment from the ground and antennas when not is use. Go to: http://www.polyphaser.com/ppc_PEN1016.asp Read their tech information, engineering notes, especially on single point grounding and ham radio grounding. Al, N8ARO - Original Message - From: JOHN MACKEY [EMAIL PROTECTED] To: Repeater-Builder@yahoogroups.com Sent: Tuesday, June 15, 2004 1:07 AM Subject: [Repeater-Builder] grounds cadwelding I am getting ready to install a ground system in my house. This is to support my radio equipment for HF and V/UHF. My plan was to use copper 6 strap running from my bench about 8 feet to two ground rods outside, each about 8 feet apart. I then wanted to cadweld the copper strap to the ground rods. Inside, I am going to connect the ground strap to a ground cable running to the breaker box. Anyone have any better ideas or suggestions? Anyone have any experience using cadwelding to bond ground strap to a ground rod? thanks Yahoo! Groups Links * To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ * To unsubscribe from this group, send an email to: [EMAIL PROTECTED] * Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
