[WISPA] Downtilt Calculation

2007-10-22 Thread Ryan Langseth
I have been meaning to ask this for a while.  How does everyone figure
their downtilt?  Do you tilt down slightly more or less than 1/2 the
vertical beamwidth? No downtilt? Anything else?

As a real world example:
We are re-deploying a tower and are moving from an omni to sectors,  we
are putting up tranzeo 13 db 120 degree sectors, with 13 degrees
vertical beamwidth.  The height of our equipment is about 220 ft, over
pretty flat terrain.  With such a setup,  what would you do for the
downtilt?



Thanks,

Ryan



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Re: [WISPA] Downtilt Calculation

2007-10-22 Thread Travis Johnson

Hi,

I use this quite a bit... it's quick and easy:

http://www.wisp-router.com/calculators/downtilt.php

If it were me, I would probably set them at 2-3 degrees downtilt.

Travis
Microserv

Ryan Langseth wrote:

I have been meaning to ask this for a while.  How does everyone figure
their downtilt?  Do you tilt down slightly more or less than 1/2 the
vertical beamwidth? No downtilt? Anything else?

As a real world example:
We are re-deploying a tower and are moving from an omni to sectors,  we
are putting up tranzeo 13 db 120 degree sectors, with 13 degrees
vertical beamwidth.  The height of our equipment is about 220 ft, over
pretty flat terrain.  With such a setup,  what would you do for the
downtilt?



Thanks,

Ryan



** Join us at the WISPA Reception at 6:30 PM on October the 16th 2007 at ISPCON 
**
** ISPCON Fall 2007 - October 16-18 - San Jose, CA   www.ispcon.com **
** THE INTERNET INDUSTRY EVENT **
** FREE Exhibits and Events Pass available until August 31 **
** Use Customer Code WSEMF7 when you register online at 
http://www.ispcon.com/register.php **


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** Join us at the WISPA Reception at 6:30 PM on October the 16th 2007 at ISPCON 
**
** ISPCON Fall 2007 - October 16-18 - San Jose, CA   www.ispcon.com **
** THE INTERNET INDUSTRY EVENT **
** FREE Exhibits and Events Pass available until August 31 **
** Use Customer Code WSEMF7 when you register online at 
http://www.ispcon.com/register.php **


WISPA Wants You! Join today!
http://signup.wispa.org/


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