Re: [WISPA] wireless mesh recommendations for extreme weatherconditions?
Wind resistance should be fairly easy to deal with. Just more radios, closer together, with smaller antennas :-). marlon - Original Message - From: "scubacuda" <[EMAIL PROTECTED]> To: "Marlon K. Schafer" <[EMAIL PROTECTED]> Cc: <[EMAIL PROTECTED]>; "WISPA General List" Sent: Saturday, November 29, 2008 12:13 PM Subject: Re: [WISPA] wireless mesh recommendations for extreme weatherconditions? > Marlon K. Schafer wrote: >> I helped design a network that worked through a hurricane out on the >> barrier islands near NC. We did NOT use adhoc but rather put in ptp or >> ptmp stations. It was pretty amazing to see video feeds from inside the >> hurricane. Cool stuff. >> >> We used mainly Zcomax gear at the time. Just off the shelf stuff. >> >> Let me know if I can be of help. Maybe I can get lucky and find the guy >> that actually built if for you. > > Very cool, I will pass on that info, as well as the info of those who > wrote me privately. > > The project (to my knowledge) isn't a "go" yet, it's just a pain point > that I know that they eventually have to address. > > Right now, he's generally looking for vendors that are willing to put in > writing some of their "ruggedness" claims or have had experience putting > up installations in tough environments. For example, BelAir Networks says > (something like) the following in their claims: > > "BelAir nodes and mounting systems are designed to operate and survive in > windy conditions of up to 165mph gust, 100mph sustained." > > While those claims may look okay, and their brackets look okay, I'm > wondering if the antennas could take the same abuse. Is there "hurricane > resistant" antennas? > > Thanks for the feedback! This info is great! 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] wireless mesh recommendations for extreme weatherconditions?
Marlon K. Schafer wrote: > I helped design a network that worked through a hurricane out on the > barrier islands near NC. We did NOT use adhoc but rather put in ptp or > ptmp stations. It was pretty amazing to see video feeds from inside the > hurricane. Cool stuff. > > We used mainly Zcomax gear at the time. Just off the shelf stuff. > > Let me know if I can be of help. Maybe I can get lucky and find the guy > that actually built if for you. Very cool, I will pass on that info, as well as the info of those who wrote me privately. The project (to my knowledge) isn't a "go" yet, it's just a pain point that I know that they eventually have to address. Right now, he's generally looking for vendors that are willing to put in writing some of their "ruggedness" claims or have had experience putting up installations in tough environments. For example, BelAir Networks says (something like) the following in their claims: "BelAir nodes and mounting systems are designed to operate and survive in windy conditions of up to 165mph gust, 100mph sustained." While those claims may look okay, and their brackets look okay, I'm wondering if the antennas could take the same abuse. Is there "hurricane resistant" antennas? Thanks for the feedback! This info is great! 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] wireless mesh recommendations for extreme weatherconditions?
I helped design a network that worked through a hurricane out on the barrier islands near NC. We did NOT use adhoc but rather put in ptp or ptmp stations. It was pretty amazing to see video feeds from inside the hurricane. Cool stuff. We used mainly Zcomax gear at the time. Just off the shelf stuff. Let me know if I can be of help. Maybe I can get lucky and find the guy that actually built if for you. marlon - Original Message - From: "Rogelio" <[EMAIL PROTECTED]> To: "WISPA General List" Sent: Friday, November 28, 2008 9:13 PM Subject: [WISPA] wireless mesh recommendations for extreme weatherconditions? > Can anyone recommend a wireless mesh vendor (and associated brackets and > antennas) that would undergo extreme weather conditions? > > A really good friend from university works in a hurricane research group > and is looking wireless communication devices that they can put on top > of these 30m ad hoc mobile research towers that they place in the middle > of hurricanes for monitoring. > > He told me the distances that they want to get (1+ mi), and I told him > that from a link budget perspective, this was a piece of cake on 2.4/5.8 > Wi-Fi bands, and as long as he could be assured that the radio and the > radio accessories could stay on the mobile unit and have a good source > of power, we'd most likely be okay (these mobile units apparently have > great backup batteries). > > Right now, they're looking at cellular coverage, but the distances that > they want to do aren't that far, and they like the idea of building a > backbone in these emergency situations which might also be used to > converge other services on, particularly when the cellular network is > unstable in hurricane environments. > > Any help or pointers on this would be greatly appreciated! > > > > 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/
