[WISPA] Link stability
I have a wireless backhaul link that is not as stable as I would like. It is a 15.5 mile shot that has been up for 3 years. MT/CM9/32db dish on both ends. On a clear day I am only seeing a -83 on each end. All the radio equip was replaced April 08 due to lighting, still have the original 3ft LMR-400 and antenna. I seem to remember the signal being in the -70 range prior to the lightning replacements. Right now the link is down with random reconnects with a -92 and then it will drop again. Weather is misty thick and overcast. I kinda of have a twofold question, could the weather be attenuating the signal enough to drop the connection? I think yes. Second, could I have a weakened/damaged antenna causing the general drop in signal? Mark 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] Link stability
I would suspect the CM9s are going deaf as a possibility as well. Mark McElvy wrote: I have a wireless backhaul link that is not as stable as I would like. It is a 15.5 mile shot that has been up for 3 years. MT/CM9/32db dish on both ends. On a clear day I am only seeing a -83 on each end. All the radio equip was replaced April 08 due to lighting, still have the original 3ft LMR-400 and antenna. I seem to remember the signal being in the -70 range prior to the lightning replacements. Right now the link is down with random reconnects with a -92 and then it will drop again. Weather is misty thick and overcast. I kinda of have a twofold question, could the weather be attenuating the signal enough to drop the connection? I think yes. Second, could I have a weakened/damaged antenna causing the general drop in signal? Mark 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/ No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.423 / Virus Database: 270.14.32/2460 - Release Date: 10/26/09 08:10:00 -- Scott Reed Sr. Systems Engineer GAB Midwest 1-800-363-1544 x4000 Cell: 260-273-7239 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] Link stability
What about the original LMR400? On 10/26/09, Scott Reed scottr...@onlyinternet.net wrote: I would suspect the CM9s are going deaf as a possibility as well. Mark McElvy wrote: I have a wireless backhaul link that is not as stable as I would like. It is a 15.5 mile shot that has been up for 3 years. MT/CM9/32db dish on both ends. On a clear day I am only seeing a -83 on each end. All the radio equip was replaced April 08 due to lighting, still have the original 3ft LMR-400 and antenna. I seem to remember the signal being in the -70 range prior to the lightning replacements. Right now the link is down with random reconnects with a -92 and then it will drop again. Weather is misty thick and overcast. I kinda of have a twofold question, could the weather be attenuating the signal enough to drop the connection? I think yes. Second, could I have a weakened/damaged antenna causing the general drop in signal? Mark 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/ No virus found in this incoming message. Checked by AVG - www.avg.com Version: 8.5.423 / Virus Database: 270.14.32/2460 - Release Date: 10/26/09 08:10:00 -- Scott Reed Sr. Systems Engineer GAB Midwest 1-800-363-1544 x4000 Cell: 260-273-7239 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/ -- Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373 When you have eliminated the impossible, that which remains, however improbable, must be the truth. --- Sir Arthur Conan Doyle 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] Link stability
Hi, According to my path calculator, this link should be -55 on each side. Are you sure it was aligned when it was first installed? Travis Microserv Mark McElvy wrote: I have a wireless backhaul link that is not as stable as I would like. It is a 15.5 mile shot that has been up for 3 years. MT/CM9/32db dish on both ends. On a clear day I am only seeing a -83 on each end. All the radio equip was replaced April 08 due to lighting, still have the original 3ft LMR-400 and antenna. I seem to remember the signal being in the -70 range prior to the lightning replacements. Right now the link is down with random reconnects with a -92 and then it will drop again. Weather is misty thick and overcast. I kinda of have a twofold question, could the weather be attenuating the signal enough to drop the connection? I think yes. Second, could I have a weakened/damaged antenna causing the general drop in signal? Mark 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] Link stability
I'd change the LMR jumper and/or feedhorn. There's a strong chance there is water in the jumper and changing it might fix it. There's also a chance that the feedhorn has failed. If you end up changing the feedhorn, consider putting a radome on the dish to protect the feedhorn from weather. It's not necessary, but it is additional protection. On Mon, Oct 26, 2009 at 02:39:47PM -0500, Mark McElvy wrote: I have a wireless backhaul link that is not as stable as I would like. It is a 15.5 mile shot that has been up for 3 years. MT/CM9/32db dish on both ends. On a clear day I am only seeing a -83 on each end. All the radio equip was replaced April 08 due to lighting, still have the original 3ft LMR-400 and antenna. I seem to remember the signal being in the -70 range prior to the lightning replacements. Right now the link is down with random reconnects with a -92 and then it will drop again. Weather is misty thick and overcast. I kinda of have a twofold question, could the weather be attenuating the signal enough to drop the connection? I think yes. Second, could I have a weakened/damaged antenna causing the general drop in signal? Mark 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/ -- /* Jason Philbrook | Midcoast Internet Solutions - Wireless and DSL KB1IOJ| Broadband Internet Access, Dialup, and Hosting http://f64.nu/ | for Midcoast Mainehttp://www.midcoast.com/ */ 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] Link stability
Aligned and re-aligned. I suppose there is a possibility I am catching side lobes. We climbed to realign back in the spring when we had some 70 mph gusts move things. Could not get any better than -85. Mark -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Travis Johnson Sent: Monday, October 26, 2009 3:33 PM To: WISPA General List Subject: Re: [WISPA] Link stability Hi, According to my path calculator, this link should be -55 on each side. Are you sure it was aligned when it was first installed? Travis Microserv Mark McElvy wrote: I have a wireless backhaul link that is not as stable as I would like. It is a 15.5 mile shot that has been up for 3 years. MT/CM9/32db dish on both ends. On a clear day I am only seeing a -83 on each end. All the radio equip was replaced April 08 due to lighting, still have the original 3ft LMR-400 and antenna. I seem to remember the signal being in the -70 range prior to the lightning replacements. Right now the link is down with random reconnects with a -92 and then it will drop again. Weather is misty thick and overcast. I kinda of have a twofold question, could the weather be attenuating the signal enough to drop the connection? I think yes. Second, could I have a weakened/damaged antenna causing the general drop in signal? Mark 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] Link stability
They have had radome covers since installed Mark -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of jp Sent: Monday, October 26, 2009 3:37 PM To: WISPA General List Subject: Re: [WISPA] Link stability I'd change the LMR jumper and/or feedhorn. There's a strong chance there is water in the jumper and changing it might fix it. There's also a chance that the feedhorn has failed. If you end up changing the feedhorn, consider putting a radome on the dish to protect the feedhorn from weather. It's not necessary, but it is additional protection. On Mon, Oct 26, 2009 at 02:39:47PM -0500, Mark McElvy wrote: I have a wireless backhaul link that is not as stable as I would like. It is a 15.5 mile shot that has been up for 3 years. MT/CM9/32db dish on both ends. On a clear day I am only seeing a -83 on each end. All the radio equip was replaced April 08 due to lighting, still have the original 3ft LMR-400 and antenna. I seem to remember the signal being in the -70 range prior to the lightning replacements. Right now the link is down with random reconnects with a -92 and then it will drop again. Weather is misty thick and overcast. I kinda of have a twofold question, could the weather be attenuating the signal enough to drop the connection? I think yes. Second, could I have a weakened/damaged antenna causing the general drop in signal? Mark 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/ -- /* Jason Philbrook | Midcoast Internet Solutions - Wireless and DSL KB1IOJ| Broadband Internet Access, Dialup, and Hosting http://f64.nu/ | for Midcoast Mainehttp://www.midcoast.com/ */ 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] Link stability
Ok. Weather might be water incursion. CM9 might be PIGTAIL. You didn't say what mfg antenna so its hard to guess. There is always the alignment thing. Did you replace the pigtail after the storm damage? Sent from my Verizon Wireless BlackBerry -Original Message- From: Mark McElvy mmce...@accubak.com Date: Mon, 26 Oct 2009 14:39:47 To: WISPA General Listwireless@wispa.org Subject: [WISPA] Link stability I have a wireless backhaul link that is not as stable as I would like. It is a 15.5 mile shot that has been up for 3 years. MT/CM9/32db dish on both ends. On a clear day I am only seeing a -83 on each end. All the radio equip was replaced April 08 due to lighting, still have the original 3ft LMR-400 and antenna. I seem to remember the signal being in the -70 range prior to the lightning replacements. Right now the link is down with random reconnects with a -92 and then it will drop again. Weather is misty thick and overcast. I kinda of have a twofold question, could the weather be attenuating the signal enough to drop the connection? I think yes. Second, could I have a weakened/damaged antenna causing the general drop in signal? Mark 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] Link stability
Yes, the pigtail was replaced, just not the coax and antenna. It is a PacWireless dish Mark 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] Link stability
Yeah...I agree, weather attenuation really only occurs at 10GHz and up. If weather is changing signal quality, then it points to a connection that is no longer weather tight. lakel...@gbcx.net wrote: Ok. Weather might be water incursion. CM9 might be PIGTAIL. You didn't say what mfg antenna so its hard to guess. There is always the alignment thing. Did you replace the pigtail after the storm damage? Sent from my Verizon Wireless BlackBerry -Original Message- From: Mark McElvy mmce...@accubak.com Date: Mon, 26 Oct 2009 14:39:47 To: WISPA General Listwireless@wispa.org Subject: [WISPA] Link stability I have a wireless backhaul link that is not as stable as I would like. It is a 15.5 mile shot that has been up for 3 years. MT/CM9/32db dish on both ends. On a clear day I am only seeing a -83 on each end. All the radio equip was replaced April 08 due to lighting, still have the original 3ft LMR-400 and antenna. I seem to remember the signal being in the -70 range prior to the lightning replacements. Right now the link is down with random reconnects with a -92 and then it will drop again. Weather is misty thick and overcast. I kinda of have a twofold question, could the weather be attenuating the signal enough to drop the connection? I think yes. Second, could I have a weakened/damaged antenna causing the general drop in signal? Mark 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] Link stability
Sent from my iPhone On Oct 26, 2009, at 12:44 PM, Mark McElvy mmce...@accubak.com wrote: I have a wireless backhaul link that is not as stable as I would like. It is a 15.5 mile shot that has been up for 3 years. MT/CM9/32db dish on both ends. On a clear day I am only seeing a -83 on each end. All the radio equip was replaced April 08 due to lighting, still have the original 3ft LMR-400 and antenna. I seem to remember the signal being in the -70 range prior to the lightning replacements. Right now the link is down with random reconnects with a -92 and then it will drop again. Weather is misty thick and overcast. I kinda of have a twofold question, could the weather be attenuating the signal enough to drop the connection? I think yes. Second, could I have a weakened/damaged antenna causing the general drop in signal? Mark --- --- --- --- 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] Link stability
I would think you should be seeing a better signal than that. I'd replace cards, pigtails, and LMR again. Cameron Mark McElvy wrote: I have a wireless backhaul link that is not as stable as I would like. It is a 15.5 mile shot that has been up for 3 years. MT/CM9/32db dish on both ends. On a clear day I am only seeing a -83 on each end. All the radio equip was replaced April 08 due to lighting, still have the original 3ft LMR-400 and antenna. I seem to remember the signal being in the -70 range prior to the lightning replacements. Right now the link is down with random reconnects with a -92 and then it will drop again. Weather is misty thick and overcast. I kinda of have a twofold question, could the weather be attenuating the signal enough to drop the connection? I think yes. Second, could I have a weakened/damaged antenna causing the general drop in signal? Mark 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] Link stability
it's possible the coax, connectors, or antenna got cooked Sent from my iPhone On Oct 26, 2009, at 12:44 PM, Mark McElvy mmce...@accubak.com wrote: I have a wireless backhaul link that is not as stable as I would like. It is a 15.5 mile shot that has been up for 3 years. MT/CM9/32db dish on both ends. On a clear day I am only seeing a -83 on each end. All the radio equip was replaced April 08 due to lighting, still have the original 3ft LMR-400 and antenna. I seem to remember the signal being in the -70 range prior to the lightning replacements. Right now the link is down with random reconnects with a -92 and then it will drop again. Weather is misty thick and overcast. I kinda of have a twofold question, could the weather be attenuating the signal enough to drop the connection? I think yes. Second, could I have a weakened/damaged antenna causing the general drop in signal? Mark --- --- --- --- 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] Link stability
CM9's are pretty reliable, but when they have failed for me it is usually with the receive going out. The receive signal will drop about 10db. Keep in mind that with a link you have to figure out which side is giving you the trouble. It could be either tower that has the problem. If it was the CM9 then I would think you would have a signal on one side that was better than the other. If the signals are the same on both ends then there is something that is attenuating both the transmit and receive signals. The only things in common would be pigtail, lmr400 and antenna feedhorn. But it could be on either tower. LaRoy McCann Data Technology Mark McElvy wrote: They have had radome covers since installed Mark -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of jp Sent: Monday, October 26, 2009 3:37 PM To: WISPA General List Subject: Re: [WISPA] Link stability I'd change the LMR jumper and/or feedhorn. There's a strong chance there is water in the jumper and changing it might fix it. There's also a chance that the feedhorn has failed. If you end up changing the feedhorn, consider putting a radome on the dish to protect the feedhorn from weather. It's not necessary, but it is additional protection. On Mon, Oct 26, 2009 at 02:39:47PM -0500, Mark McElvy wrote: I have a wireless backhaul link that is not as stable as I would like. It is a 15.5 mile shot that has been up for 3 years. MT/CM9/32db dish on both ends. On a clear day I am only seeing a -83 on each end. All the radio equip was replaced April 08 due to lighting, still have the original 3ft LMR-400 and antenna. I seem to remember the signal being in the -70 range prior to the lightning replacements. Right now the link is down with random reconnects with a -92 and then it will drop again. Weather is misty thick and overcast. I kinda of have a twofold question, could the weather be attenuating the signal enough to drop the connection? I think yes. Second, could I have a weakened/damaged antenna causing the general drop in signal? Mark 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] Link stability
Was that the best the link would do before the wind? It might seam odd, but have you tried cross pol at one end? Ive got a dish here, the bunp on the feed is 180* off from the specs, made for lots of fun. No no, the paper says this is right, it just isn't lined up half hour later sure, lets flip the feed -- whiskey tango foxtrot! Jeromie Mark McElvy wrote: Aligned and re-aligned. I suppose there is a possibility I am catching side lobes. We climbed to realign back in the spring when we had some 70 mph gusts move things. Could not get any better than -85. Mark -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Travis Johnson Sent: Monday, October 26, 2009 3:33 PM To: WISPA General List Subject: Re: [WISPA] Link stability Hi, According to my path calculator, this link should be -55 on each side. Are you sure it was aligned when it was first installed? Travis Microserv Mark McElvy wrote: I have a wireless backhaul link that is not as stable as I would like. It is a 15.5 mile shot that has been up for 3 years. MT/CM9/32db dish on both ends. On a clear day I am only seeing a -83 on each end. All the radio equip was replaced April 08 due to lighting, still have the original 3ft LMR-400 and antenna. I seem to remember the signal being in the -70 range prior to the lightning replacements. Right now the link is down with random reconnects with a -92 and then it will drop again. Weather is misty thick and overcast. I kinda of have a twofold question, could the weather be attenuating the signal enough to drop the connection? I think yes. Second, could I have a weakened/damaged antenna causing the general drop in signal? Mark 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/
