Author: "Chortek, Robert L." <Robert.Chortek@berliner.com>
Date: Fri, 6 Nov 2020 02:05:43 +0000
I just finished installing a two element vertical array on 40M. The instructions say to bond the radials from one vertical where they intersect with a radial for the other vertical. My question is, i
Hi Bob, While bonding the radials is desirable, its not essential. But you must NOT cross the radials over each other. The radials of a multi-element vertical array are usually bonded to a common wir
Scroll down to drawing 5 and 6 to see the proper way of handing intersecting radials. http://www.hatdaw.com/papers/groundsystem.pdf 73 Rob K5UJ _________________ Searchable Archives: http://www.conte
I use the "Lead-Free" plumbing solder to connect my radials & ground straps. "Oatley Safe-Flo Lead Free Solder" is sold in most Home Improvement stores in the plumbing department. Do NOT use Lead-Tin
Frank, Must is a strong word. What goes wrong if you cross them? 73, Carl WS7L _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector
Must is a strong word. What goes wrong if you cross them? 73, Carl WS7L Also, if insulated wires are used for radials that cross over each other, is that to be treated differently than bare metal wir
Among other things they will and can arc if very close or even intermittently touching. if they are not bonded the currents and voltages on each wire may be different enough to arc then you get inter
Hi Carl, If the insulation breaks down they will arc, potentially causing a fire 73 Frank W3LPL -- Dave Manuals@ArtekManuals.com www.ArtekManuals.com -- This email has been checked for viruses by Ava
With all due respect, I must ask, how many megawatts are you guys running? Wes N7WS If the insulation breaks down they will arc, potentially causing a fire 73 Frank W3LPL Must is a strong word. What
Always beware of any communication that begins "with all due respect" -- Original Message -- With all due respect, I must ask, how many megawatts are you guys running? Wes N7WS _________________ Sear
I of course defer to Frank's expertise here. But after thinking about this for a couple of hours, I'm trying to wrap my head around this arc risk concept as well. It's interesting and I toss this c
Hi Jeff, Micro arcing can be excited by just a few volts of RF. While micro arcing probably is n't a fire risk, micro arcing radiates low level phase noise on transmitted signals. This is can cause a
Wow, that's amazing. I suppose the risk of micro arcing then specifically with insulated radials has got to be closer to zero - at least until the insulation breakdown was sufficient to facilitate th
You save me a lot of writing. This is my thought experiment. Just another point or two. 1) the more radials there are the lower the current in each. With enough radials, the currents are milliamps
Author: Dennis OConnor via Topband <topband@contesting.com>
Date: Sun, 8 Nov 2020 12:29:16 +0000 (UTC)
I had an 80 meter two element parasitic vertical beam array with elevated radials. The radials were roughly 8 to 10 feet in the air and 8 radials per vertical. They were suspended through the woods