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What linked NXDN systems exist out there? Here is Michigan it sucks. We have just ONE repeater. https://www.repeaterbook.com/repeaters/feature_search.php?type=NXDN&state_id=26&band=4
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SteveShannon reacted to an answer to a question: Question re: grounding for lightning protection
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Question re: grounding for lightning protection
WRYZ926 replied to WRTC928's question in Technical Discussion
I have bulkheads through the wall to bring the coax in. I also have a metal plate on each side of the wall with a piece of 1/4" 20 all thread through the wall that I use for my ground point. I have a ground rod right below the bulkheads and the all thread, plates, and lightning arrestors are all connected to that ground. That ground rod along with my masts and roof mounted antennas are all bonded to my service ground. I disconnect the coax from the bulkheads inside the house and put caps on them. I know the caps won't be much protection but hopefully they keep any charge coming down the coax and just shooting into the room. Nothing will protect from a direct lightning strike. All we can do is minimize the damage from near strikes. - Today
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I think California is gonna win that one
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WRYZ926 reacted to an answer to a question: Question re: grounding for lightning protection
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Nice!
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SteveShannon reacted to a post in a topic: Base Station Setups...
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WRYZ926 reacted to a post in a topic: Antenna mount for 2025 Jeep Gladiator Mojave?
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SteveShannon reacted to a post in a topic: Florida is HOT with Repeaters
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FarmallDave joined the community
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I'll get right on that...
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WRUE951 reacted to a post in a topic: Florida is HOT with Repeaters
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SteveShannon reacted to a post in a topic: New to group
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Welcome to the group and as a note, there are literally hundreds of YouTube videos on getting started with GMRS -- and no, you don't need a repeater!
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Florida also has the largest linked NXDN UHF Ham repeaters in the country I believe. https://ni4ce.org/nxdn-digital-communications/
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WSGL775 reacted to a post in a topic: Just passed my General class test on Saturday!!!!
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Hey folks, we are hosting a get-together on Sunday, July 13th starting at 02:00 PM at Carrabba's Italian Grill in Centreville, VA. We will meet in the main lot and spend some time socializing and working with anyone who may need some guidance on their gear. When everyone is hungry, we can head inside for some ice cold beverages and some food. As always, this will be a family-friendly event. Feel free to bring family and friends. Any questions, just post them below! https://www.facebook.com/events/744340581470568/?active_tab=discussion https://locations.carrabbas.com › Virginia › Centreville 5805 Trinity Pkwy Centreville, VA 20120
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Just returned from out of country travel and got the same smack... Was concerned but I change it....
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Question re: grounding for lightning protection
LeoG replied to WRTC928's question in Technical Discussion
16' between ground rods. Putting a coax in a glass jar etc. Lighting is going to do what it wants even with grounding. The grounding is a preventative measure to take care of as good as it can. There is no 100% it's going to follow any cable, it's the least path of resistance but because of the huge voltage potentials it can leave that path. Certainly better to have grounded the crap out of something than nothing at all. But it doesn't mean the lightning is going to go where you want it. I pretty much figure a direct hit is a death strike most of the time for equipment. Near misses is where the grounding really shines. -
WSIW871 joined the community
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Do a report to export them to CSV and then use Chirp to import them to your radio.
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Question re: grounding for lightning protection
SteveShannon replied to WRTC928's question in Technical Discussion
You’re wrong, Leo. Air, and what’s in it, is the conductor for lightning, not an insulator. There are better conductors and better insulators but ionized air is actually a pretty good conductor. But who’s arguing about a couple feet? -
Antenna mount for 2025 Jeep Gladiator Mojave?
Lscott replied to WRTC928's topic in General Discussion
I tried the Comet CA-2x4SR and the Diamond NR240CA on my roof rack mount. Both antennas are 5/8 wave designs and need a ground plane. When I tested them, just for fun, on the rack mount I didn't expect them to work for crap. Big surprise both worked rather well. Apparently there is enough coupling, likely capacitive, from the mount to the rack rail and car body to work. https://forums.mygmrs.com/gallery/image/613-nr240ca-roof-rack-mount-swr-and-photojpg/?context=new The steel band holding the mount to the rail has a sheet of rubber under it so there is no direct metal to metal contact. https://forums.mygmrs.com/gallery/image/473-close-up-of-mobile-mount/?context=new The SWR sweep for the Comet was very similar but with a bit higher values. -
Yes, but you asked how to stop those notices that appear at the upper level and the only way to do that is to change your password at the MyGMRS level.
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Question re: grounding for lightning protection
LeoG replied to WRTC928's question in Technical Discussion
Lest you forget that a lightning strike starts on average about 20,000 feet in the air and travels to the ground with air as an insulator. Arguing about a couple feet is moot.