WiSPA, Yes 700 MHz important. Regarding two-way voice. Still important. Same with interoperability. http://mrtmag.com/ is a good webling.
I am or was involved in two-way radio systems in rural areas and some urban areas during my tenure (which ends this week) at a large manufacturing company. It is my understanding that the APCO P25 standard hopes to resolve the issues of interoperability. The issue of regional problems with voice radio has to do with each agency being on its own private spectrum and system. And its been my experience it is not a pursposeful thing. There is no conspiracy to NOT be interoperable. As usual things are local, then regional, then state, then national. (I loved Tip O'Neil when he recognized this - All Politics is Local) For example an electric utility may have their own VHF voice radio system and the police/fire may have a UHF system or VHF on a certain frequency. For the old radio guys (I'm member of ARRL) they miss the old days where talking to eachother was important. Anyway, as always it has been my experience that there is no one panacea as on reader wrote. It has been my experience in the utility business that in storm rooms, dispatch centers, working with electric linemen, downed powerlines; it is usually a hybrid approach and combo of two way voice, push to talk, and now some of the broaderband solutions. I even think that the 801.11(_), 802.16(e), and personal area networks will play bigger roles. One of my dealers is also a WiSP in his rural area and the local volunteer fire department use his backbone for many data centric things. Perhaps one day even voice. I subscribe to the following http://mrtmag.com/ which provides good overview. For those in the utlity business we follow UTC. Believe it or not many gas and electric linemen are now using commercial carriers such as Nextel Push To Talk (PTT). I was involved in high voltage work in the 199os and thought we would never use PTT on commercial carrier and only Two-Way radio. But it is here to stay and now that broadband like EDGE, EVDO, CMDA etc existing there will be more demand from workforce to offer those data-centric features. Especially at the edge. That is why I think that WiMax has a role in a data-centric voice environment. There may be a time where the WiSPs are being called on by the WiMAx operators system to interoperate for data-exhange. We already see this with Zigbee standard in a connected home enviroment. Felix Lopez --- John Scrivner <[EMAIL PROTECTED]> wrote: > I think we can all appreciate that you are working > hard to make public > safety communications better and I applaud your > efforts. If I lose > opportunities for use of spectrum then I can think > of no better place > than to those who are working to make our country > safer and to help us > when disaster strikes our lives. > > I do get frustrated sometimes when I see the > opportunity for building > robust IP networks which could offer both public > safety priority access > during time of need and general purpose wireless > broadband when public > safety was not using the band. Allowing top priority > to public safety > with secondary access for the rest of us would be a > simple matter I > believe and would offer a very efficient use of this > quality spectrum > asset. If we all had access to this spectrum then I > know in my heart I > would do all I could to help improve public safety > and would easily give > up access to the band in times of need as a > condition of use of the > band. I wish that had been part of the plan but that > does not mean I do > not support the interests of public safety. It only > means I would have > liked to be part of the plan. Especially when so > many of us WERE part of > the plan in the post-Katrina efforts where we > delivered when many others > did not. > > Rich, is the plan for public safety to use IP based > communications in > this band? If not then why not? What is the plan? > Will other interests > like private or muni broadband be able to use the > spectrum when public > safety is quiet? If not then why not? > Thanks, > Scriv > > > > Rich Comroe wrote: > > > > > ----- Original Message ----- From: "Mark > Koskenmaki" <[EMAIL PROTECTED]> > > To: "WISPA General List" <[email protected]> > > Sent: Friday, April 27, 2007 6:49 PM > > Subject: Re: [WISPA] 700 MHz decision at FCC > > > > > >> Justin... I am aware of the problems revolving > around the inability > >> to talk > >> to each other via voice radio. I would tend to > agree that frequency > >> coordination seems to be a terrible issue. The > cited "reasons" for > >> this > >> was the 9-11 problems with coordination of > emergency services, and NO > >> hurricane problems. Nobody blew up the NO radio > communications > >> facilities. > >> They just died because they lacked any means of > self support when the > >> power > >> went out, and the phone and the agencies weren't > talking to each > >> other, and > >> didn't seem to know who to talk to for what. > That's just the outside > >> perception, at least. > > > > > > Your outside perceptions are completely wrong. > > > >> > >> But as far as I can tell, this isn't about > talking to each other, it's > >> about building a digital network - IP based, > perhaps? > > > > > > If you're not sure what the broadband network is > for, how could you > > have already called the plan absurd? > > > >> > >> I'm still confused as to why we can't have fire > department radios > >> that can > >> talk to the cops, ambulances, and whoever else. > A lack of spectrum > >> doesn't > >> seem to be issue, rather it appears to be > political boundaries > >> between each > >> department, and no mechanism to deal with > widespread communications > >> problems. > > > > > > Completely wrong. > > > >> > >> Cyren Call wanted 30 mhz to build a nationwide > network. I'm just not > >> cognizant of how this is going to somehow > magically solve the problem > >> with > >> agencies having turf wars, and people either not > following, or not > >> haveing a > >> rational plan for dealing with widespread > disasters. > >> > >> I'm welcome to explanations of how things are > going to improve with a > >> national digital network that's subject to all > the same issues as telco > >> outages, broadband outages, etc, etc... ??? > >> > > > > I wouldn't begin to know where to start to explain > it to you. I don't > > believe you have any notion whatsoever of what the > issues and > > challenges are of public safety communications > that are being > > addressed. If you wanted to learn, you could > start with the PSWAC > > report ... it's public and on-line. But what > amazed me is how you > > conclude with no knowledge that the public safety > broadband > > communications plans are absurd and can't possibly > work. Why would you > > jump out and slam a field that you know nothing > about? Yet you wonder > > where people get the notion from that you're > anti-gov. Why not just > > say "excuse me" on that one and we'll move on. > > > > Rich > > > >> > >> ----- Original Message ----- From: "Justin > Comroe" > >> <[EMAIL PROTECTED]> > >> To: "WISPA General List" <[email protected]> > >> Sent: Friday, April 27, 2007 3:58 PM > >> Subject: Re: [WISPA] 700 MHz decision at FCC > >> > >> > >>> > >>> ----- Original Message ----- From: "Mark > Koskenmaki" > >>> <[EMAIL PROTECTED]> > >>> To: "WISPA General List" <[email protected]> > >>> Sent: Friday, April 27, 2007 5:22 PM > >>> Subject: Re: [WISPA] 700 MHz decision at FCC > >>> > >>> > >>> >I hate to say it, but it looks like the FCC is > going to squander > >>> massive > >>> > opportunity, and instead, settle for some > money... > >>> > > >>> > (sigh). > >>> > > >>> > This "nationwide broadband network for public > safety" is absurd. > >>> > > >>> Why would you say this? I served on the > technology committee that > >>> drafted > >>> the Public Safety Wireless Advisory Committee > (PSWAC) report to the > >>> FCC/NTIA. The initiative was a response to the > first world trade > >>> center > >>> bombing in 93 when public safety agencies from > all surrounding > >>> communities > >>> converted on South Manhattan ... and yet the > public safety officers > >>> could > >>> more easily throw stones / rocks at each other > than communicate on > >>> their > === message truncated === __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com -- WISPA Wireless List: [email protected] Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
