Re: [WISPA] Law Enforcement Contact Verification?
To bad we can't LIKE a post. -- Original Message -- From: Jack Unger jun...@ask-wi.com Reply-To: WISPA General List wireless@wispa.org Date: Tue, 16 Apr 2013 20:46:40 -0700 Sent via the WebMail system at avolve.net ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless
[WISPA] GA Aircraft Interrupting Microwaves?
I've got a bizarre one here Has anyone else ever experienced a GA aircraft flying in front of a tower and breaking a microwave (in this case RADWin) path long enough to bring down the link for approximately 10 seconds? We have a tower that loses connectivity about once or twice a day for around 10 seconds, and all data points to it being some GA aircraft taking off from a local field and having a flight path that takes them right in the RF path of the microwave. Next calm day one of the local pilots is going to fly a few touch-n-goes for us to confirm the theory. Just curious if anyone else has ever encountered this? ~ Matt ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless
Re: [WISPA] GA Aircraft Interrupting Microwaves?
We have equipment at 2 airports, have not seen this. Regards, Chuck On Mon, Apr 29, 2013 at 10:39 AM, Matt Hoppes mhop...@indigowireless.comwrote: I've got a bizarre one here Has anyone else ever experienced a GA aircraft flying in front of a tower and breaking a microwave (in this case RADWin) path long enough to bring down the link for approximately 10 seconds? We have a tower that loses connectivity about once or twice a day for around 10 seconds, and all data points to it being some GA aircraft taking off from a local field and having a flight path that takes them right in the RF path of the microwave. Next calm day one of the local pilots is going to fly a few touch-n-goes for us to confirm the theory. Just curious if anyone else has ever encountered this? ~ Matt ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless
Re: [WISPA] GA Aircraft Interrupting Microwaves?
Unless one of your sites is right by the airport I would say aircraft are not the issue. Sent from my Verizon Wireless 4G LTE Smartphone Original message From: Matt Hoppes mhop...@indigowireless.com Date: 04/29/2013 10:39 AM (GMT-05:00) To: memb...@wispa.org,WISPA General List wireless@wispa.org Subject: [WISPA] GA Aircraft Interrupting Microwaves? I've got a bizarre one here Has anyone else ever experienced a GA aircraft flying in front of a tower and breaking a microwave (in this case RADWin) path long enough to bring down the link for approximately 10 seconds? We have a tower that loses connectivity about once or twice a day for around 10 seconds, and all data points to it being some GA aircraft taking off from a local field and having a flight path that takes them right in the RF path of the microwave. Next calm day one of the local pilots is going to fly a few touch-n-goes for us to confirm the theory. Just curious if anyone else has ever encountered this? ~ Matt ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless
Re: [WISPA] GA Aircraft Interrupting Microwaves?
Matt, I have absolutely seen aircraft interrupt a microwave path. This is actually a fairly common occurance near airports and runways. We've seen it with helicopters also. There are two likely scenarios; what I would call 'direct' line of sight (LOS) obstruction where the plane actually flies into the 1st fresnel zone and 'incidental' where a reflection of the signal off of the plane causes fading and/or bit errors. The latter is probably less of a concern and more likely with larger aircraft. You should be able to map this out. If the plane is literally flying into the main RF path, it is likely to cause problems. Changing antenna heights can help, but the exact interception point of any given plane is probably going to vary slightly. Off topic, but as interesting is interference from wind turbines. That topic is getting a lot of attention in the wireless world right now. Brett 303.317.4449 ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless
[WISPA] maintenance agreements?
Hey guys, We're quoting a customer on some point to point gigabit links (60GHz), and the equipment vendor mentioned, Don't forget to quote for a maintenance agreement. This is where our partners really make their money. He called it a Service Level Agreement. He said it typically includes an annual maintenance program where you check all the connectors, reapply Teflon spray on the radome, etc., and offer an hourly rate if they need link troubleshooting, support, or hardware replacement (assuming the link is under manufacturer's warranty). Are other people on the list quoting customers for these? If so, what kinds of service and/or caveats do you generally include (if you don't mind sharing)? A template shared off-list would certainly be welcome, but I understand that may be asking a bit much. Thanks, Adam ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless
