Thanks! Something similar (maybe a little more selective and a little more money) might work. :)
Regarding the 75-ohm stuff. It's unlikely that we'll be "piecing" this stuff together. It's more likely that it will be all assembled and certified as a unit. FCC certification is a requirement. Blair Davis wrote: > Here is one kind I found quick. > > http://www.tinlee.com/bandpass_filters.php?active=1#CFAL > > Winegaurd and Channel Master both made them for CATV use and for > master antenna distribution systems > > Jack Unger wrote: >> That's good. Do you have a url or two? >> >> Blair Davis wrote: >> >>> And those are available already. the CATV industry has had them, in >>> 75ohm, for a long time. >>> >>> One thing I really hope for this gear is that the vendors decide to >>> make 75ohm gear. There is a HUGE amount of stuff already out there >>> that we can use if they do. >>> >>> Jack Unger wrote: >>> >>>> That's a very good idea on the transmit side. Remember that our AP >>>> receivers will also need a VERY sharp filter ($$$) to keep the adjacent >>>> channel TV signal from overloading it and reducing the reception range >>>> to ****. >>>> >>>> jack >>>> >>>> >>>> Chuck McCown - 3 wrote: >>>> >>>> >>>>> For adjacent channel use, we don't have to use a 6 MHz channel. We could >>>>> use 5 or 4 or whatever it takes to make it work. >>>>> ----- Original Message ----- >>>>> From: "Jack Unger" <[EMAIL PROTECTED]> >>>>> To: "WISPA General List" <wireless@wispa.org> >>>>> Sent: Wednesday, November 19, 2008 1:32 PM >>>>> Subject: Re: [WISPA] TV Whitespaces >>>>> >>>>> >>>>> >>>>> >>>>> >>>>>> Directional antennas and other interference-avoidance techniques will >>>>>> help but for mass-market use (which is how the vendors visualize the >>>>>> TVWS) I suspect that it's going to be a long time before 1st adjacent >>>>>> channel use will be practical. Still, gaining access to most of the >>>>>> non-1st adjacent channels white space is still a big "win" for the WISP >>>>>> industry. >>>>>> >>>>>> Chuck McCown wrote: >>>>>> >>>>>> >>>>>> >>>>>>> Hopefully forward error correction and directional antennas will make it >>>>>>> possible. >>>>>>> >>>>>>> ----- Original Message ----- >>>>>>> From: "Jack Unger" <[EMAIL PROTECTED]> >>>>>>> To: "WISPA General List" <wireless@wispa.org> >>>>>>> Sent: Wednesday, November 19, 2008 1:19 PM >>>>>>> Subject: Re: [WISPA] TV Whitespaces >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>>> Anything's possible but look at the shape of a DTV waveform and compare >>>>>>>> it to the shape of an OFDM broadband wireless signal. Now look at the >>>>>>>> space between those two waveforms if they are on adjacent channels. >>>>>>>> It's >>>>>>>> kind of like putting two bricks side by side with no space in between. >>>>>>>> Who is going to interfere with who the most? Looks like the DTV signals >>>>>>>> will interfere with our AP receivers AND our CPE transmitters will >>>>>>>> interfere with nearby television receivers. Of course, I could be >>>>>>>> wrong.... What's your take on it? >>>>>>>> >>>>>>>> Chuck McCown wrote: >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>>> Perhaps once TVWS gets used and it proves a success, then they will >>>>>>>>> open >>>>>>>>> up >>>>>>>>> adjacent channels. >>>>>>>>> Once they do that there will be holes everywhere. >>>>>>>>> >>>>>>>>> ----- Original Message ----- >>>>>>>>> From: "Jack Unger" <[EMAIL PROTECTED]> >>>>>>>>> To: "WISPA General List" <wireless@wispa.org> >>>>>>>>> Sent: Wednesday, November 19, 2008 12:58 PM >>>>>>>>> Subject: Re: [WISPA] TV Whitespaces >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>>> Joe, >>>>>>>>>> >>>>>>>>>> The White Spaces are the unused television channels. In most major >>>>>>>>>> metro >>>>>>>>>> areas, many of the channels are in use by television broadcasters and >>>>>>>>>> other licensed users. Outside of major metro areas, there will be >>>>>>>>>> unused >>>>>>>>>> channels available that you can use. In general, the more rural you >>>>>>>>>> are, >>>>>>>>>> the more channels will be available. >>>>>>>>>> >>>>>>>>>> jack >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> Joe Laura wrote: >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>>> Am I hearing correctly that this new space can only be utilized in >>>>>>>>>>> rural >>>>>>>>>>> areas? Not for Citys like New Orleans? TIA >>>>>>>>>>> Joe Laura >>>>>>>>>>> Superior Alarm/Wireless >>>>>>>>>>> New Orleans,La. >>>>>>>>>>> www.superior1.com >>>>>>>>>>> ----- Original Message ----- >>>>>>>>>>> From: Blair Davis >>>>>>>>>>> To: WISPA General List >>>>>>>>>>> Sent: Monday, November 17, 2008 5:47 PM >>>>>>>>>>> Subject: Re: [WISPA] TV Whitespaces >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> Ubquity? Some kind of mini-pci card? >>>>>>>>>>> >>>>>>>>>>> Charles Wyble wrote: >>>>>>>>>>> Mike Hammett wrote: >>>>>>>>>>> Now that TV whitespaces have been approved for our use, let's hear >>>>>>>>>>> from >>>>>>>>>>> the vendors. When, how much, and what will you do with it? >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> Indeed! >>>>>>>>>>> >>>>>>>>>>> Who would the likely vendors in this space be? >>>>>>>>>>> >>>>>>>>>>> Should we put an RFP together and send it around? I sure want >>>>>>>>>>> answers >>>>>>>>>>> to your questions as well. >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> Ladies and gents: I haven't read all of the published information >>>>>>>>>>> yet, >>>>>>>>>>> but this is the second greatest battle we have come across (second >>>>>>>>>>> only >>>>>>>>>>> to having unlicensed available in the first place) and we have won! >>>>>>>>>>> Congrats. It appears the portable devices are held to 100 mw of >>>>>>>>>>> power, >>>>>>>>>>> while we have 4 watts (which is pretty much what we have everywhere >>>>>>>>>>> else). Four watts at these frequencies will carry! >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> Yep! >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> -------------------------------------------------------------------------------- >>>>>>>>>>> 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/ >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>>> >>>>>>>>>> -- >>>>>>>>>> Jack Unger - President, Ask-Wi.Com, Inc. >>>>>>>>>> Serving the Broadband Wireless Industry Since 1993 >>>>>>>>>> Cisco Press Author - "Deploying License-Free Wireless WANs" >>>>>>>>>> WISPs - Do you know where your customers are? >>>>>>>>>> For wireless coverage mapping see http://www.ask-wi.com/mapping >>>>>>>>>> FCC Lic. #PG-12-25133 LinkedIn Profile >>>>>>>>>> <http://www.linkedin.com/in/jackunger> >>>>>>>>>> Phone 818-227-4220 Email <[EMAIL PROTECTED]> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> >>>>>>>>>> -------------------------------------------------------------------------------- >>>>>>>>>> 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/ >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>> -- >>>>>>>> Jack Unger - President, Ask-Wi.Com, Inc. >>>>>>>> Serving the Broadband Wireless Industry Since 1993 >>>>>>>> Cisco Press Author - "Deploying License-Free Wireless WANs" >>>>>>>> WISPs - Do you know where your customers are? >>>>>>>> For wireless coverage mapping see http://www.ask-wi.com/mapping >>>>>>>> FCC Lic. #PG-12-25133 LinkedIn Profile >>>>>>>> <http://www.linkedin.com/in/jackunger> >>>>>>>> Phone 818-227-4220 Email <[EMAIL PROTECTED]> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> -------------------------------------------------------------------------------- >>>>>>>> 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/ >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>>> >>>>>> -- >>>>>> Jack Unger - President, Ask-Wi.Com, Inc. >>>>>> Serving the Broadband Wireless Industry Since 1993 >>>>>> Cisco Press Author - "Deploying License-Free Wireless WANs" >>>>>> WISPs - Do you know where your customers are? >>>>>> For wireless coverage mapping see http://www.ask-wi.com/mapping >>>>>> FCC Lic. #PG-12-25133 LinkedIn Profile >>>>>> <http://www.linkedin.com/in/jackunger> >>>>>> Phone 818-227-4220 Email <[EMAIL PROTECTED]> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> -------------------------------------------------------------------------------- >>>>>> 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/ >>> >> >> > > ------------------------------------------------------------------------ > > > > -------------------------------------------------------------------------------- > 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/ -- Jack Unger - President, Ask-Wi.Com, Inc. Serving the Broadband Wireless Industry Since 1993 Cisco Press Author - "Deploying License-Free Wireless WANs" WISPs - Do you know where your customers are? For wireless coverage mapping see http://www.ask-wi.com/mapping FCC Lic. #PG-12-25133 LinkedIn Profile <http://www.linkedin.com/in/jackunger> Phone 818-227-4220 Email <[EMAIL PROTECTED]> -------------------------------------------------------------------------------- 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/
