No you don't. wpci1: atheros 100 -73dbm -96dbm 23 2442 sta,U1,x2 00:80:48:39:8e:42
war-platform ~ > starutil 10.10.251.1 password -rx rx rate: 1220 KB/sec (Press Ctrl-C to exit) war-platform ~ > war-platform ~ > traceroute -n 10.10.251.1 traceroute to 10.10.251.1 (10.10.251.1), 30 hops max, 40 byte packets 1 10.10.67.1 5.532 ms 10.319 ms 4.523 ms 2 10.10.12.5 6.805 ms 11.779 ms 4.623 ms 3 10.10.227.1 5.018 ms 6.86 ms 5.174 ms 4 10.10.226.254 5.307 ms 7.747 ms 5.948 ms 5 10.10.251.1 8.279 ms 12.21 ms 5.814 ms This is the client at 13 miles in X2 cloaking. The AP is a 16 dB 60 degree sector and the client is a 24 dB grid. If this were an AP in the middle I could just as easily use a 15 dB omni and achieve almost identical results. Both units have a Compex WLM-54SuperG radio. No high power, no amplifiers. I don't need it and neither do you. An amplifier adds noise and worse, it increases the time to transition from tx to rx, which requires that you use long preamble which slows performance down. The worst thing it adds is signal, which you do not need and which messes up areas outside your coverage. You have been using amps for so long you just believe you always have to use them. A lot of companies have made a lot of money selling unnecessary amplifiers and they prey on the guys who do not know any better. That is fine normally and you would just laugh at the guy for not knowing better, but when that guy is in the same area as you are trying to serve, then it is not funny. Lonnie On 2/4/07, Marlon K. Schafer <[EMAIL PROTECTED]> wrote:
with sites that have 10 users in a 15 mile RADIUS, you have to have an amp.... marlon ----- Original Message ----- From: "George Rogato" <[EMAIL PROTECTED]> To: "WISPA General List" <wireless@wispa.org> Sent: Sunday, February 04, 2007 11:51 AM Subject: Re: [WISPA] Typical OFDM CPE antennas > Amps? > > The success of G is less noise and less power. IMHO > > Never looked for a G amp or tried a G high powered card. > > > Marlon K. Schafer wrote: >> Has anyone found an amp that'll work CORRECTLY with g AND b? >> marlon >> >> ----- Original Message ----- From: "George Rogato" <[EMAIL PROTECTED]> >> To: "WISPA General List" <wireless@wispa.org> >> Sent: Sunday, February 04, 2007 11:21 AM >> Subject: Re: [WISPA] Typical OFDM CPE antennas >> >> >>> Nothing scientific Mac, but I think lots of G ap's work better than lots >>> of B ap's. >>> >>> Seems when I've seen high powered B ap's in the mix there can be issues. >>> Where as when I see only low powered G things still work. >>> >>> The area I cover is fairly small, so i'm getting densly built out with >>> omni's and sectors all over the place. >>> >>> >>> >>> Mac Dearman wrote: >>> >>>> How are y'all running "G" in so many places? I would love to implement >>>> G, >>>> but I have so many towers sectored out and then we have so many clients >>>> running wireless routers close to the CPE that I feel like there would >>>> be >>>> trouble in Paradise here!! >>>> >>>> Are any of you running G on anything but an Omni antenna? (Multiple >>>> antennas on one tower?) >>>> >>>> Mac >>>> >>>> >>>> >>>> -----Original Message----- >>>> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On >>>> Behalf Of Lonnie Nunweiler >>>> Sent: Sunday, February 04, 2007 12:30 PM >>>> To: WISPA General List >>>> Subject: Re: [WISPA] Typical OFDM CPE antennas >>>> >>>> Totally agree. A bad G link will still give as good as a GOOD B link. >>>> G will give 5 mbps even when it is close to not connecting and B >>>> requires superb signals to get 5 mbps. >>>> >>>> Lonnie >>>> >>>> On 2/4/07, George Rogato <[EMAIL PROTECTED]> wrote: >>>> >>>>> I have quite abit of G out there. All the clients and ap's I install >>>>> today are G. >>>>> 60's is great, 70's work just fine too. >>>>> 60's get top performance, 70' is still a great very fast connection >>>>> and >>>>> even low 80's beat B. >>>>> >>>>> B stands for Bad >>>>> G stands for Good >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> Marlon K. Schafer wrote: >>>>> >>>>>> It's not about antenna size. It's about signal levels. >>>>>> >>>>>> Most g radios need -60ish signal levels to work well. Use the >>>>>> antennas >>>>>> that you need to make it work right. >>>>>> >>>>>> Find the sensitivity levels of the product you are using, run the >>>>>> calcs, >>>>>> and compute a 10 dB or so fade margin. >>>>>> >>>>>> laters, >>>>>> marlon >>>>>> >>>>>> ----- Original Message ----- From: "Tom DeReggi" >>>>>> <[EMAIL PROTECTED]> >>>>>> To: "WISPA General List" <wireless@wispa.org> >>>>>> Sent: Saturday, February 03, 2007 12:38 PM >>>>>> Subject: [WISPA] Typical OFDM CPE antennas >>>>>> >>>>>> >>>>>> >>>>>>> I wanted to get some feedback from the List. >>>>>>> >>>>>>> Typically, what Dbi gain antennas are you desiring for OFDM short >>>>>>> Near-LOS or Mid-range CPE links? >>>>>>> Is 18 dbi enough? >>>>>>> >>>>>>> I'm well aware that 18dbi will not be good for many applications >>>>>>> (long >>>>>>> range or noisy), but what percentage of CPE installtions would it be >>>>>>> good for? >>>>>>> Could 75% of the CPE installs be acheived with 18dbi? >>>>>>> >>>>>>> I personally, would pick a 21-23db antenna as a preferred choice, >>>>>>> but >>>>>>> PacWireless Rootennas are 19dbi, and often used with 13-15 dbm CM9 >>>>>>> cards. The beamwidth of 18dbi (< 20-30 degrees) is pretty good for >>>>>>> interference resilience and OFDM maximized, and if more gain was >>>>>>> needed it could be accommodated with higher power radios such >>>>>>> Teletronic's >18dbm Atheros cards or Ubiquiti's SR5 18-26db cards. >>>>>>> >>>>>>> Tom DeReggi >>>>>>> RapidDSL & Wireless, Inc >>>>>>> IntAirNet- Fixed Wireless Broadband >>>>>>> >>>>>>> >>>>>>> -- >>>>>>> WISPA Wireless List: wireless@wispa.org >>>>>>> >>>>>>> Subscribe/Unsubscribe: >>>>>>> http://lists.wispa.org/mailman/listinfo/wireless >>>>>>> >>>>>>> Archives: http://lists.wispa.org/pipermail/wireless/ >>>>>> >>>>>> >>>>>> >>>>> -- >>>>> George Rogato >>>>> >>>>> Welcome to WISPA >>>>> >>>>> www.wispa.org >>>>> >>>>> 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/ >>>>> >>>> >>>> >>>> >>> >>> -- >>> George Rogato >>> >>> Welcome to WISPA >>> >>> www.wispa.org >>> >>> 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/ >> >> > > -- > George Rogato > > Welcome to WISPA > > www.wispa.org > > 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 Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
-- Lonnie Nunweiler Valemount Networks Corporation http://www.star-os.com/ -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
