Interesting, care to post the test results? I'm interested to see what the actual attenuation is on these cables at 5.7GHz.
-----Original Message----- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Chuck Hogg Sent: Tuesday, October 25, 2011 2:06 PM To: WISPA General List Subject: Re: [WISPA] Splitters with Motorola Canopy 320 - Results Update No they were pre-made/tested by Titan Wireless. Regards, Chuck On Tue, Oct 25, 2011 at 2:39 PM, Josh Luthman <j...@imaginenetworksllc.com> wrote: > 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! 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