Re: [WISPA] brain cramp, can someone jog my memory?

2008-01-02 Thread Blair Davis
I've tried using trees to mount AP's.  Too much sway for the backhauls.  Altho, mesh might work there. ralphlists wrote: Ahh Thanks. I had envisioned something like that, but figured the "legs" would be the leggy things extending out. You just mount your stuff on the top of that tower

RE: [WISPA] brain cramp, can someone jog my memory?

2008-01-02 Thread ralphlists
Ahh Thanks. I had envisioned something like that, but figured the "legs" would be the leggy things extending out. You just mount your stuff on the top of that tower, then, I guess. Not a lot of them around N GA, but we got lots of pine trees :-) Ralph -Original Message- From: [EMAIL PRO

Re: [WISPA] brain cramp, can someone jog my memory?

2008-01-02 Thread Blair Davis
http://www.wmwisp.net/modules/tinycontent/index.php?id=13 Click on the picture for Koeman Farms and you will see a grain leg. ralphlists wrote: Thanks. I don't understand it, but I did it 3 times. You can do a lot with line of sight. 11 miles on 2.4 is never a problem for us when we have

Re: [WISPA] brain cramp, can someone jog my memory?

2008-01-02 Thread Blair Davis
I have users on 2.4GHz at a range of 30+ miles with clear LoS. On 5.8GHz I have links over 25 miles with clear LoS. Just wish I could get that 900MHz stuff to work better. John Valenti wrote: Wow, thank you! (really meant to send that message directly to you, but now the list can see your plo

Re: [WISPA] brain cramp, can someone jog my memory?

2008-01-02 Thread Mike Hammett
These are silos: http://www.plant.uoguelph.ca/performance_recommendations/ofcc/pub/SILO.htg/silo2.gif The round things are bins and the center is a grain leg aka bucket elevator: http://www.grainbinsupply.com/images/bins.jpg - Mike Hammett Intelligent Computing Solutions http://www.ics-

Re: [WISPA] brain cramp, can someone jog my memory?

2008-01-02 Thread Mike Hammett
It took me a bit at first. Once I figured it out, I considered my time investment invaluable. Now if only I knew all the ins and outs of the program. I know I don't use it to its potential. - Mike Hammett Intelligent Computing Solutions http://www.ics-il.com - Original Message ---

RE: [WISPA] brain cramp, can someone jog my memory?

2008-01-02 Thread ralphlists
Thanks. I don't understand it, but I did it 3 times. You can do a lot with line of sight. 11 miles on 2.4 is never a problem for us when we have it. It is hard for me to visualize your terrain or what a grain leg even is, but I guess it must be like a silo or something. Ralph -Original Messa

Re: [WISPA] brain cramp, can someone jog my memory?

2008-01-02 Thread John Valenti
Wow, thank you! (really meant to send that message directly to you, but now the list can see your plots, too) It is flat here, but the trees are the problem for RF. Do I understand the last plot correctly: that ignoring trees, a 2.4GHz signal would work for ~12 miles? Amazing. I feel luc

Re: [WISPA] brain cramp, can someone jog my memory?

2008-01-02 Thread John Valenti
Ryan, Thanks for that method, too. I've done something similar with Delorme's TopoUSA software. But I'm coming to the conclusion that Google Earth is probably fine for around here. It is flat enough that the trees block the signal within a mile or so. -John (pinning my hopes on the white

[WISPA] Contract wording

2008-01-02 Thread CHUCK PROFITO
We have always run point to multipoint for subscribers. We are thinking about deploying a quasi mesh / repeater system in a difficult to serve area. Do any of you use any special contract wording for mesh, especially covering power requirements, etc. that you would be willing to share? Or if you w

RE: [WISPA] Radio Mobile

2008-01-02 Thread Brian Webster
Matt, There are many things to consider with mapping data. SRTM and other terrain files all have their native map projection and datum. It takes someone strong in the GIS and mapping field to make sure these files get overlaid and used properly without shifting any one of the layers out of

Re: [WISPA] Radio Mobile

2008-01-02 Thread Matt Liotta
I have found most people don't purchase clutter data even when using the commercial tools when used as part of a fixed wireless operation. They generally just put in an average height to use. This is what we do as well even though we purchased clutter data. Although, we aren't using commercial

RE: [WISPA] Radio Mobile

2008-01-02 Thread Brian Webster
Mike, As mentioned by another, try adjusting the height of one end or the other to increase signal level. As Mac will tell you, higher on a site is not always better. If you can engineer a path to obstruct as much of even number Fresnel zones as possible it will help your signal level. Eve