Re: [WISPA] Hamvention
That is a myth. Sent from my Verizon Wireless BlackBerry -Original Message- From: Kurt Fankhauser k...@wavelinc.com Date: Mon, 17 May 2010 01:36:07 To: 'WISPA General List'wireless@wispa.org Subject: Re: [WISPA] Hamvention You can't use a fiberglass omni at the top of a tower and expect it to survive a strike unless it has a copper groundrod built inside of it protruding from the top in which it was designed to take a strike. Learned this from various HAM radio operators. Only 2.4ghz omni I know of that has a metal frame and can survive direct strikes are slotted waveguides such as the various H-POL omni's you see. If I'm going to use a VPOL omni I make sure I'm not the tallest guy on the tower. Kurt Fankhauser WAVELINC P.O. Box 126 Bucyrus, OH 44820 419-562-6405 www.wavelinc.com -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of RickG Sent: Sunday, May 16, 2010 11:16 PM To: wa4...@arrl.net; WISPA General List Subject: Re: [WISPA] Hamvention Ya, the pop (pun intended:) is growing so hopefully it gets sectors soon! On Sun, May 16, 2010 at 8:03 PM, Leon D. Zetekoff wa4...@backwoodswireless.net wrote: On 05/16/2010 07:08 PM, RickG wrote: I'm sorry Bob! I was slacking all night on a water tank after it took a direct hit. Picture of omni attached. Even with LP in place, it melted the cabling down to the enclosure and burned up everything in it! I got it back up running by dropping temporary cables down the side of the tower. A dozen man hours later - it's all new. Maybe next year! We had a multi-band comet VHF/UHF for our club repeater on the top of a 10 story building in Coral Springs a number of years ago and it got blown apart similarly. They work good but explode like that when hit. Leon WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Hamvention
On 5/17/2010 10:23 AM, Blake Bowers wrote: If you have a copper ground rod in the radome then you make the antenna both directional, and subject to a high VSWR. Radome antennas like the one pictured do splinter - it is one of those LMR facts of life. ANY antenna subject to a direct strike can be damaged. The best antenna I have ever used for LMR is a DB224, the design of which makes it totally unacceptable for WISP work. (Unless you have a two way radio system in your installers trucks LOL) http://www.wiscointl.com/decibel/dipoles/db224.htm This is the same style of antenna that dot many of the old ATT long lines towers across the country - I have never found one bad at one of the ATT sites. For that matter, my MCI sites had radome antennas like the one pictured, no copper ground rod going up through the antenna (I can't even find one like that after some checking around) and I never found one of those bad either. That is a testament to proper grounding techniques, and a good ground system at the base. Lightning could really care less about your location on the tower. Often times antennas on the side, half way down the tower will be destroyed, and a similar antenna on the top is fine. http://www.polyphaser.com/ when it was privately owned had a fantastic book - the grounds for lightning protection. The owner had spent his life working in the field, and packed that knowledge into the book. If you ever have a chance to get it - do so. Another great source, but less info as to the WHY, is Motorola R-56 standards. EVERYONE should have a copy - there is more knowledge stuffed into that book than the encyclpedia, when it comes to installing equipment at a tower site. Bottom line - if lightning wants your antenna, it matters not where it is located on the tower. Don't take your organs to heaven, heaven knows we need them down here! Be an organ donor, sign your donor card today. - Original Message - From: Kurt Fankhauserk...@wavelinc.com To:lakel...@gbcx.net; 'WISPA General List'wireless@wispa.org Sent: Monday, May 17, 2010 8:32 AM Subject: Re: [WISPA] Hamvention Which part is a myth? Kurt Fankhauser WAVELINC P.O. Box 126 Bucyrus, OH 44820 419-562-6405 www.wavelinc.com -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of lakel...@gbcx.net Sent: Monday, May 17, 2010 8:20 AM To: WISPA General List Subject: Re: [WISPA] Hamvention That is a myth. Sent from my Verizon Wireless BlackBerry -Original Message- From: Kurt Fankhauserk...@wavelinc.com Date: Mon, 17 May 2010 01:36:07 To: 'WISPA General List'wireless@wispa.org Subject: Re: [WISPA] Hamvention You can't use a fiberglass omni at the top of a tower and expect it to survive a strike unless it has a copper groundrod built inside of it protruding from the top in which it was designed to take a strike. Learned this from various HAM radio operators. Only 2.4ghz omni I know of that has a metal frame and can survive direct strikes are slotted waveguides such as the various H-POL omni's you see. If I'm going to use a VPOL omni I make sure I'm not the tallest guy on the tower. Kurt Fankhauser WAVELINC P.O. Box 126 Bucyrus, OH 44820 419-562-6405 www.wavelinc.com -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of RickG Sent: Sunday, May 16, 2010 11:16 PM To: wa4...@arrl.net; WISPA General List Subject: Re: [WISPA] Hamvention Ya, the pop (pun intended:) is growing so hopefully it gets sectors soon! On Sun, May 16, 2010 at 8:03 PM, Leon D. Zetekoff wa4...@backwoodswireless.net wrote: On 05/16/2010 07:08 PM, RickG wrote: I'm sorry Bob! I was slacking all night on a water tank after it took a direct hit. Picture of omni attached. Even with LP in place, it melted the cabling down to the enclosure and burned up everything in it! I got it back up running by dropping temporary cables down the side of the tower. A dozen man hours later - it's all new. Maybe next year! We had a multi-band comet VHF/UHF for our club repeater on the top of a 10 story building in Coral Springs a number of years ago and it got blown apart similarly. They work good but explode like that when hit. Leon I believe the Comet I mentioned was s VHF only - don't remember. It was replaced with a folded dipole array like was pictured. Eventually, after I moved to PA, it was replaced with a VHF staionmaster. Even with good grounding, lighting will do it's damage. I don't believe our antenna got a direct strike but very close. It must have hit the building possibly even the antenna. What makes me think not is the repeater stuff still worked fine once we put up a new antenna. Good grounding is a must as is good protection. Leon WA4ZLW No virus found in this outgoing message. Checked by AVG - www.avg.com Version: 9.0.819 / Virus Database: 271.1.1/2878 - Release Date: 05/16/10 14:26:00
Re: [WISPA] Hamvention
I dont expect anything to survive a direct hit. I've had dozens of these on towers since 2004 and this is the first one to get it. Not too bad! On Mon, May 17, 2010 at 1:36 AM, Kurt Fankhauser k...@wavelinc.com wrote: You can't use a fiberglass omni at the top of a tower and expect it to survive a strike unless it has a copper groundrod built inside of it protruding from the top in which it was designed to take a strike. Learned this from various HAM radio operators. Only 2.4ghz omni I know of that has a metal frame and can survive direct strikes are slotted waveguides such as the various H-POL omni's you see. If I'm going to use a VPOL omni I make sure I'm not the tallest guy on the tower. Kurt Fankhauser WAVELINC P.O. Box 126 Bucyrus, OH 44820 419-562-6405 www.wavelinc.com -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of RickG Sent: Sunday, May 16, 2010 11:16 PM To: wa4...@arrl.net; WISPA General List Subject: Re: [WISPA] Hamvention Ya, the pop (pun intended:) is growing so hopefully it gets sectors soon! On Sun, May 16, 2010 at 8:03 PM, Leon D. Zetekoff wa4...@backwoodswireless.net wrote: On 05/16/2010 07:08 PM, RickG wrote: I'm sorry Bob! I was slacking all night on a water tank after it took a direct hit. Picture of omni attached. Even with LP in place, it melted the cabling down to the enclosure and burned up everything in it! I got it back up running by dropping temporary cables down the side of the tower. A dozen man hours later - it's all new. Maybe next year! We had a multi-band comet VHF/UHF for our club repeater on the top of a 10 story building in Coral Springs a number of years ago and it got blown apart similarly. They work good but explode like that when hit. Leon WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Hamvention
Oh, I wasnt the black woman but I'm glad you two had a good time :) On Sat, May 15, 2010 at 11:55 PM, Robert West robert.w...@just-micro.com wrote: Rick, was good to hang with you today. Very cool. I never imagined you as a short black woman... But it's all good. Go figure, Rick being short for Rickesha. Anyhow, good meetin' ya. Bob- WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Hamvention
On 05/16/2010 07:08 PM, RickG wrote: I'm sorry Bob! I was slacking all night on a water tank after it took a direct hit. Picture of omni attached. Even with LP in place, it melted the cabling down to the enclosure and burned up everything in it! I got it back up running by dropping temporary cables down the side of the tower. A dozen man hours later - it's all new. Maybe next year! We had a multi-band comet VHF/UHF for our club repeater on the top of a 10 story building in Coral Springs a number of years ago and it got blown apart similarly. They work good but explode like that when hit. Leon WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Hamvention
It was grounded. On Sun, May 16, 2010 at 7:17 PM, Mike m...@aweiowa.com wrote: I've had similar experiences with an omni which was NOT DC grounded. I learned my lesson. Did you? Friendly Regards, Mike -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of RickG Sent: Sunday, May 16, 2010 6:08 PM To: WISPA General List Subject: Re: [WISPA] Hamvention I'm sorry Bob! I was slacking all night on a water tank after it took a direct hit. Picture of omni attached. Even with LP in place, it melted the cabling down to the enclosure and burned up everything in it! I got it back up running by dropping temporary cables down the side of the tower. A dozen man hours later - it's all new. Maybe next year! On Sat, May 15, 2010 at 11:55 PM, Robert West robert.w...@just-micro.com wrote: Rick, was good to hang with you today. Very cool. I never imagined you as a short black woman... But it's all good. Go figure, Rick being short for Rickesha. Anyhow, good meetin' ya. Bob- WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Hamvention
Ya, the pop (pun intended:) is growing so hopefully it gets sectors soon! On Sun, May 16, 2010 at 8:03 PM, Leon D. Zetekoff wa4...@backwoodswireless.net wrote: On 05/16/2010 07:08 PM, RickG wrote: I'm sorry Bob! I was slacking all night on a water tank after it took a direct hit. Picture of omni attached. Even with LP in place, it melted the cabling down to the enclosure and burned up everything in it! I got it back up running by dropping temporary cables down the side of the tower. A dozen man hours later - it's all new. Maybe next year! We had a multi-band comet VHF/UHF for our club repeater on the top of a 10 story building in Coral Springs a number of years ago and it got blown apart similarly. They work good but explode like that when hit. Leon WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Hamvention
What? Then who was it I spent the day with???!!! She said her name was Rickesha. - Original Message - From: RickG rgunder...@gmail.com To: WISPA General List wireless@wispa.org Sent: Sunday, May 16, 2010 7:08 PM Subject: Re: [WISPA] Hamvention I'm sorry Bob! I was slacking all night on a water tank after it took a direct hit. Picture of omni attached. Even with LP in place, it melted the cabling down to the enclosure and burned up everything in it! I got it back up running by dropping temporary cables down the side of the tower. A dozen man hours later - it's all new. Maybe next year! On Sat, May 15, 2010 at 11:55 PM, Robert West robert.w...@just-micro.com wrote: Rick, was good to hang with you today. Very cool. I never imagined you as a short black woman... But it's all good. Go figure, Rick being short for Rickesha. Anyhow, good meetin' ya. Bob- WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Hamvention
That looks like something I would beat my kids with. Well, in my mind anyhow. - Original Message - From: RickG rgunder...@gmail.com To: WISPA General List wireless@wispa.org Sent: Sunday, May 16, 2010 7:08 PM Subject: Re: [WISPA] Hamvention I'm sorry Bob! I was slacking all night on a water tank after it took a direct hit. Picture of omni attached. Even with LP in place, it melted the cabling down to the enclosure and burned up everything in it! I got it back up running by dropping temporary cables down the side of the tower. A dozen man hours later - it's all new. Maybe next year! On Sat, May 15, 2010 at 11:55 PM, Robert West robert.w...@just-micro.com wrote: Rick, was good to hang with you today. Very cool. I never imagined you as a short black woman... But it's all good. Go figure, Rick being short for Rickesha. Anyhow, good meetin' ya. Bob- WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Hamvention
If they could make them look like that new then maybe the lightning could be fooled to leave it alone. could that work? - Original Message - From: Leon D. Zetekoff wa4...@backwoodswireless.net To: WISPA General List wireless@wispa.org Sent: Sunday, May 16, 2010 8:03 PM Subject: Re: [WISPA] Hamvention On 05/16/2010 07:08 PM, RickG wrote: I'm sorry Bob! I was slacking all night on a water tank after it took a direct hit. Picture of omni attached. Even with LP in place, it melted the cabling down to the enclosure and burned up everything in it! I got it back up running by dropping temporary cables down the side of the tower. A dozen man hours later - it's all new. Maybe next year! We had a multi-band comet VHF/UHF for our club repeater on the top of a 10 story building in Coral Springs a number of years ago and it got blown apart similarly. They work good but explode like that when hit. Leon WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Hamvention
It wasn't a she... and it was all night baby :) ryan On Sun, May 16, 2010 at 9:38 PM, Robert West robert.w...@just-micro.comwrote: What? Then who was it I spent the day with???!!! She said her name was Rickesha. - Original Message - From: RickG rgunder...@gmail.com To: WISPA General List wireless@wispa.org Sent: Sunday, May 16, 2010 7:08 PM Subject: Re: [WISPA] Hamvention I'm sorry Bob! I was slacking all night on a water tank after it took a direct hit. Picture of omni attached. Even with LP in place, it melted the cabling down to the enclosure and burned up everything in it! I got it back up running by dropping temporary cables down the side of the tower. A dozen man hours later - it's all new. Maybe next year! On Sat, May 15, 2010 at 11:55 PM, Robert West robert.w...@just-micro.com wrote: Rick, was good to hang with you today. Very cool. I never imagined you as a short black woman... But it's all good. Go figure, Rick being short for Rickesha. Anyhow, good meetin' ya. Bob- WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
Re: [WISPA] Hamvention
You can't use a fiberglass omni at the top of a tower and expect it to survive a strike unless it has a copper groundrod built inside of it protruding from the top in which it was designed to take a strike. Learned this from various HAM radio operators. Only 2.4ghz omni I know of that has a metal frame and can survive direct strikes are slotted waveguides such as the various H-POL omni's you see. If I'm going to use a VPOL omni I make sure I'm not the tallest guy on the tower. Kurt Fankhauser WAVELINC P.O. Box 126 Bucyrus, OH 44820 419-562-6405 www.wavelinc.com -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of RickG Sent: Sunday, May 16, 2010 11:16 PM To: wa4...@arrl.net; WISPA General List Subject: Re: [WISPA] Hamvention Ya, the pop (pun intended:) is growing so hopefully it gets sectors soon! On Sun, May 16, 2010 at 8:03 PM, Leon D. Zetekoff wa4...@backwoodswireless.net wrote: On 05/16/2010 07:08 PM, RickG wrote: I'm sorry Bob! I was slacking all night on a water tank after it took a direct hit. Picture of omni attached. Even with LP in place, it melted the cabling down to the enclosure and burned up everything in it! I got it back up running by dropping temporary cables down the side of the tower. A dozen man hours later - it's all new. Maybe next year! We had a multi-band comet VHF/UHF for our club repeater on the top of a 10 story building in Coral Springs a number of years ago and it got blown apart similarly. They work good but explode like that when hit. Leon WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/ WISPA Wants You! Join today! http://signup.wispa.org/ WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
