'Cloaking' is the term used by the StarOS to refer to the functionality that allows for changing channel width from 20Mhz to 10Mhz or 5Mhz.
According to http://forum.mikrotik.com/viewtopic.php?p=30343&sid=d1e41e16905346726003d1f2 b84d7ea2 Mikrotik also has this functionality as of version 2.9.12 Alvarion VL radios also have this ability. However my current understanding is that this functionality may not fully interoperate with another mfg.'s equipment. Faisal Imtiaz SnappyDSL.net -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of rabbtux rabbtux Sent: Monday, February 05, 2007 2:37 PM To: WISPA General List Subject: Re: [WISPA] Typical OFDM CPE antennas Forgive my ignorance, but is this 'cloaking' you speak of, a feature of 802.11G, or is it exclusively starOS, or can I find in in Mikrotik as well?? On 2/5/07, Tom DeReggi <[EMAIL PROTECTED]> wrote: > I won't join into the arguement of B versus G and Amp versus no amp, > but I will say.... > > I got three links working last week, using Cloaking, that were not > able to be made work without Cloaking ability. > When I can make a software parameter change and go from bad link to > good link, thats something that can not be ignored. > > Tom DeReggi > RapidDSL & Wireless, Inc > IntAirNet- Fixed Wireless Broadband > > > ----- Original Message ----- > From: "Lonnie Nunweiler" <[EMAIL PROTECTED]> > To: "WISPA General List" <wireless@wispa.org> > Sent: Monday, February 05, 2007 12:07 AM > Subject: Re: [WISPA] Typical OFDM CPE antennas > > > > 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/ > > -- > 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/ -- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
