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#1
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grounding question
I have a discone antenna on my roof and the mast is grounded to the
earth with #8 solid wire with a ground rod. I want to use lmr-400 wire for app 50 ft to the scanner. Is it necessary to install the cable with an in-line arrestor ? I hate to have to add more connectors if it isnt necessary...I always unplug the scanner from my cable, rg-58, when Im not using it.....Any thoughts.....Thanks Mike |
#2
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grounding question
Mike wrote: I have a discone antenna on my roof and the mast is grounded to the earth with #8 solid wire with a ground rod. I want to use lmr-400 wire for app 50 ft to the scanner. Is it necessary to install the cable with an in-line arrestor ? I hate to have to add more connectors if it isnt necessary...I always unplug the scanner from my cable, rg-58, when Im not using it.....Any thoughts.....Thanks Mike Well, it's up to you. An arrester is going to be safer than no arrester, but if you are unplugging, maybe you don't need it . But even then, that depends if you actually throw the coax outside when not in use. If you do, maybe you can get by, assuming you never forget to unplug. But if you are just unplugging and leaving it in the room, I'd for sure have an arrester. You do not want an unprotected direct path to the house interior.. No bueno! I don't use arresters, but I'm cheap, and I always ground the unused coax's *outside* to a strip of grounded SO-239's. My mast is grounded well also. I've taken two direct strikes that I'm aware of, and have had no damage at all to anything. Most goes to ground at the mast, and whatever is left on the feedlines goes to ground at the window ground. Both grounds are tied together and are the same appx potential. Some energy does go to ground at the window. I can hear it arc on mast strikes, or sometimes even close indirect strikes. You wouldn't really want that in the house with you unprotected. MK |
#3
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grounding question
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#4
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grounding question
On Thu, 27 Jul 2006 05:50:23 -0400, Buck wrote:
It really got me to thinking about what the radio would be like if i had left it plugged in. I unplug my rigs much more often now. Hi Buck, Did it get you to thinking about how you replaced the path to ground at the time you were unpluggin your rigs? 73's Richard Clark, KB7QHC |
#5
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grounding question
On Thu, 27 Jul 2006 09:21:41 -0700, Richard Clark
wrote: On Thu, 27 Jul 2006 05:50:23 -0400, Buck wrote: It really got me to thinking about what the radio would be like if i had left it plugged in. I unplug my rigs much more often now. Hi Buck, Did it get you to thinking about how you replaced the path to ground at the time you were unpluggin your rigs? 73's Richard Clark, KB7QHC It got me to thinking of putting the end of the wire in a jar, which is what I did. The alternative was to toss it out the window, but that wasn't viable at the time. -- 73 for now Buck N4PGW |
#6
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grounding question
In article ,
Buck wrote: On Thu, 27 Jul 2006 09:21:41 -0700, Richard Clark wrote: On Thu, 27 Jul 2006 05:50:23 -0400, Buck wrote: It really got me to thinking about what the radio would be like if i had left it plugged in. I unplug my rigs much more often now. Hi Buck, Did it get you to thinking about how you replaced the path to ground at the time you were unpluggin your rigs? 73's Richard Clark, KB7QHC It got me to thinking of putting the end of the wire in a jar, which is what I did. The alternative was to toss it out the window, but that wasn't viable at the time. i don't think tossing goax into a jar would protect you , dunno but it's good to have a arrestor the good ones have almost not appreciable loss that you would notice on a scanner it will protect it from misc static sudden bursts which u might not unplug fast enough if your luckey it might reduce staticand improve reception couldn't hurt i use some arrestors but when i am not using the ant, i unplug outside the house and ground it it's a choir but i am nutty the other alternative is radio insurrance pretty cheep for just a scnnner naturally it would 'protect' humans best luck |
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