Premades? Or did you make your own and get as close as humanly possible? Josh Luthman Office: 937-552-2340 Direct: 937-552-2343 1100 Wayne St Suite 1337 Troy, OH 45373
On Tue, Oct 25, 2011 at 1:55 PM, Chuck Hogg <ch...@shelbybb.com> wrote: > It is my understanding that they need to be of the same length. That > was our design, all the same length...we used 18" LMR 240 for this > situation. > > Regards, > Chuck > > > > On Tue, Oct 25, 2011 at 1:30 PM, Kristian Hoffmann <kh...@fire2wire.com> > wrote: >> Do you have a reference for calculating the proper cable lengths and >> antenna spacing based on frequency when using splitters in a >> configuration like this? >> >> Thanks, >> >> -Kristian >> >> On 10/25/2011 06:39 AM, Chuck Hogg wrote: >>> I thought I would post back on here what we did and our results. >>> These are preliminary. >>> >>> Equipment: >>> 1 x 320AP >>> >>> Configuration with only one sector: >>> Power set to 19.9dB (per the manual for legal power settings) >>> AP set to -65 power leveling >>> Client signals at the AP were -65 (or thereabouts, this fluctuates >>> from -65 to -70) for all clients. >>> Client receive levels ranged from -61 to -75. >>> >>> Equipment: >>> 1 x 320AP >>> 4 x 16.5dB 90 degree sectors >>> 2 x 4 way splitters from L-Com >>> >>> Configuration with only one sector: >>> Power set to full 25dB (per the manual for legal power settings, >>> assuming a -6.5dB of loss) >>> AP set to -65 power leveling >>> Client signals at the AP were -65 (or thereabouts, this fluctuates >>> from -65 to -70) for all clients. >>> Client receive levels ranged from -64 to -78. >>> >>> So essentially by adding a 4 way splitter the clients receive levels >>> increased by about 3.5-4dB. Tower receive levels were unchanged, as >>> most of the clients were power leveled down. Only one client is >>> transmitting at full power now. That client is also the highest >>> signal on both sides. Most client transmit levels are also running at >>> a higher power now as well. >>> >>> Conclusion: >>> I think that running 1 x 320AP x 4 sectors through splitters is a >>> little aggressive. If the majority of your clients are going to have >>> decent signal levels, then I see no problems with it. However, I >>> think that our current situation is a little on the edge. I think >>> that if you are looking for an inexpensive way to use 320AP's, I would >>> recommend this solution. I think that this solution has a higher net >>> gain over using an 8dB omni. My results show that it is pretty >>> consistent on being about a total loss of about 8dB using a 4 way >>> splitter. You can overcome 6.1dB of that loss in turning up the >>> transmit power of the radios. Your net loss is about 2.5-3dB, >>> however you are able to focus the sectors a little better. >>> >>> In the long run on future deployments, we will likely use 2 AP's and 4 >>> sectors with 4x2way splitters (MIMO). Once they reach capacity, we'll >>> add additional AP's. >>> >>> Regards, >>> Chuck >>> >>> >>> -------------------------------------------------------------------------------- >>> 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/ >>> >> >> >> -- >> Kristian Hoffmann >> System Administrator >> kh...@fire2wire.com >> http://www.fire2wire.com >> >> Office - 209-543-1800 | Fax - 209-545-1469 | Toll Free - 800-905-FIRE >> >> >> >> -------------------------------------------------------------------------------- >> 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/
