The advantage of Open Sky, as I see it--is that one channel can carry on 2 conversations...BUT in day to day communications that will not be needed in my opinion.
1a) I don't know how this became an OpenSky thread.
1b) That is an advantage of TDMA of all sorts. (They each have their own slot count) (TETRA (4), iDEN (6), OpenSky (2 or 4), MotoTurbo (2), and P25 Phase 2 (2).
1c) The determination of the necessary number of communications paths and the number of RF carriers is best left to the system designers and not the opinion of someone without sufficient information.
Another issue: Anyone who does not have an Open Sky radio WILL NOT be able to communicate with the system.
2a) As with any radio system. (No, I am not a proponent of OpenSky for public safety, but I am also not a proponent of using silly factoids to (overly) state your case.
2b) See #1a.
Pa has seen that as an issue and is deploying more repeater sites---in the 450 MHz range( basically an all NEW radio system, I.e.; More costs) and plans on using it's existing sites that use the national frequency of 155.475 MHz to "patch" existing radio systems in.
3a) This is about DE not PA
3b) This is not an OpenSky system; See #1a
That may sound good on paper---but when you're involved in a high stress situation---you shouldn't be wasting time asking a dispatcher to "throw a patch" or telling local law enforcment to switch to the correct frequency. Right now in most Pa State Police cars, the "old" radio system has the capability of talking the local law enforcement by flicking a channel selector in the car and not having to depend on anyone else. That will done away with with Open Sky. Also, right now, Troopers can listen to local law enforcement to know whats going on around them.
4a) This is about DE not PA
4b) This is not an OpenSky system; See #1a
One of the main potential problems is the so called "cell sites" that will be used. They are used to "fill in" dead spots that the tower sites can not reach.
5a) What "Cell Sites", where did you find reference to "Cell Sites"?
5b) How do you know how the system is to be deployed?
In Pa most of those cell sites are connected by phone lines! In bad weather if the phone lines are pulled down or receive such damage---the cell site is useless. IF the cell sites are linked via microwave or another RF form there is less likely the chance of a problem.
6a) This is about DE not PA. See #4A
6b) You are making very large assumptions about the design of a system with no supporting information.
Getting back to Project 25. Lets say that local police departments decide to go to that digital format. They can bid on and then buy P25 radios from a variety of vendors, Motorola (Ma/Com DOES make a p25 radio) Relm, GE, just about anyone.
7a) We never got away from P25, only you (and Dave a little bit) did.
7b) The State of DE is already P25, as there Motorola system has been updated.
7c) If it is trunked, then they need to be trunked P25 radios.
7d) While there are lots of P25 radios available, and even a good number are trunked, I would not say "everyone", and certainly not GE.
That's another problem for taxpayers with Open Sky. Because it is a propriety format (patended) no one else can manufacture those radios---meaning a government agency would be forced to buy from Ma/Com--no one else. (no bidding!)
8a) This is not an OpenSky system; See #1a, #2b, #3b, #4b, and #6a
That's like saying I have a radio and TV station. I will not be using the national standard to broadcast my programming. If you want to see/hear us you will have to buy the TV/radio set from us!
Isn't that what AM Stereo, SiRIUS. XM, and HD-Radio are all about?
Now, I know you have a hard-on for OpenSky, and you have allowed that to infuriate you over every action of M/A-COM (TYCO Electronics), and you relate every issue to those in PA, . . . .
. . . But maybe its time to take a chill-pill?
