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Honda Odyssey GPS Navigation System

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#31 of 963 maybe so... by dcrisler Oct 03, 1999 (10:57 pm)
but it still does not suffer from the usual off angle viewing problems that lcd's exhibit.
#32 of 963 by abid1 Oct 04, 1999 (8:44 am)
Is the Nav system the same as in Acura TL 3.2 2000 model, finger prints/marks free? Can you add a Cassette tape player in addition to the standard CD player(which comes with EX model), since Nav screen takes some space on the dash board?
#33 of 963 abid1 by md5033 Oct 04, 1999 (10:48 am)
I believe that the NAV in the Odyssey and the TL is the same. They both are based on one (1) DVD disk database. There is only one radio slot below the NAV on the dash, therefore you can not add the additional tapedeck to the AM/FM/CD standard radio. Only choice is to remove the radio and install one of your choosing, or find an LX owner to trade radios and install the CD Changer under the drivers seat. David
#34 of 963 Technology: Screen, movies, Satellite updates... by jimblock Oct 04, 1999 (1:22 pm)
1) I looked at the screen carefully over the weekend, and I'm practically sure it is an active matrix LCD under a firm touch screen. It doesn't exhibit "off-angle" because you really can't view it off angle -- it is recessed into the dash. (My opinion, only, of course). 2) As much as I also wish it, the system can't play DVD movies. Even if the operating system let it try, it doesn't have MPEG-2 decoding needed to play them. (No reason for a mapping system to have it, and it would add to cost.) [It is also illegal to have video displayed in front seat of car in many states.] 3) Satellite updates -- nice idea, but would require an additional receiver, of a different type. The NAV is a GPS system which means it can receive position information only from GPS satellites. It is not a satellite receiver like a TV dish receiver, and GPS satellites do not transmit extra (map) data. 4) Use in criminal investigation, etc. While the system does track previous destinations, I doubt sincerely that it tracks location otherwise. And there is no indication that it records time or date. 5) Many posts ago some in the general Honda Odyssey list speculated on tracking location of a van because of GPS -- not possible as far as I know -- the GPS system receives only -- unlike a cell phone it does not send anything that can be tracked.
#35 of 963 jimblock - cell phones by csade Oct 05, 1999 (12:42 pm)
The comment made about cell phones is not correct. It IS possible to locate a cell phone based upon it's connection to the home system (or connected cell tower). I think the possibility exists for GPS receivers to be tracked (maybe the gov't does it for their planes already). One thing to think of is the GPS broadcast is for your position only. It appears easy to track in on the nav systems receiver. One thing to think of: a nav system is unique to the vehicle, not like a radio that broadcasts the same signal to thousands of receivers.
#36 of 963 : jimblock - cell phones by dcrisler Oct 05, 1999 (1:05 pm)
Cell phones are tracked by their transmitters... and as far as I know that only gives the current "CELL" that the phone is located in... gps systems have no transmitter! How would it be possible to track them? And yes Goverment planes have transmitters that can identify the location of the plane... but they had it long before gps... any pilot out there can explain it. As to our previous lcd thread... yes I agree it has to be lcd... and the thick glass theory explains alot... however it is still the best one I have seen!
#37 of 963 Cell phone locating by timothyadavis Oct 05, 1999 (2:13 pm)
E911 (the 'E' is for "Enhanced") has a critical concern with where calls are originating. From support work I used to do for E911, I know a little about the cell-phone-locating problem. The "cells" (antennas or antennae for you scholars) are generally set up with overlapping coverage areas so that any given radio exchange from a specific cell phone is usually "heard" by several cell antennas. However, only the antenna with the "best" signal responds and opens the transmission (the signal can also get "handed off" to the next antenna as you move). At the very least, that responding antenna can be identified so that the location of the cell phone must be somewhere in the 'V'-shaped area covered by that antenna (they use directional antennas with groups to cover up to 360 degrees from each cell site). If at least three widely-spaced antennas "hear" the signal then it is possible to locate the cell phone fairly accurately by triangulation. For E911 purposes, Congress has mandated that the first phase (transmitting the one specific "cell" tower handling the call to E911 Emergency Response Providers along with the call itself) be in place by 2000 (I think). The second phase requires the triangulated location to be sent with the call by 2006 (I think). So, this problem is being addressed for cell phones, but it is an unwanted expense to the providers in capturing, processing and transmitting the information with the E911 calls. However, I think dcrisler is also correct in that there is no "sent" signal from the Nav system as it is only a receiver (everything necessary is sent from the satellite(s)). In addition, even if the Nav system did send a signal, it would be a costly proposition to track and process each one; I really doubt that our government (who has built and maintains the satellites) has taken that on (Big Brother fears notwithstanding). I work with databases all the time. While there is certainly a lot more information available and collectible on each of us than we may like, it tends to be information with Social Security Number as the key. Without that clear and unique key, it is nearly impossible to match up and collect the information together in any meaningful way. The volumes of data become so immense so quickly that the expense and the error rates are enormous; so I think it happens far less than our paranoia might indicate.
#38 of 963 cell phones vs. gps by jimblock Oct 05, 1999 (4:00 pm)
This discussion is interesting, although perhaps getting off topic. Having read the last couple of messages twice, I still am not sure I'm understanding what each poster is saying. However, I *THINK* that I agree with dcrisler and disagree with csade. What I was trying to say in my last post (although obviously not clearly) was that cell phones can be located (in theory -- not every system has yet implemented E911) because they do transmit; GPS receivers cannot be located because they do NOT transmit (unless some other transmitter is added to the device). The GPS system consists of satellites that transmit, and a receivers (like the one in the Odyssey) that receive signals from multiple satellite transmitters and compute location from that. I also speculated (I really don't know) that no database of where you have been is kept in the system. It would take storage, which is limited in the Navigation system.
#39 of 963 jimblock by timothyadavis Oct 05, 1999 (4:31 pm)
Yes, yes and yes. Sorry for the loooonnnngggg off topic cell-phone/E911 post. You captured it in a nutshell: no Nav system transmitter, receive-only, no where-you've-been database. That last is from the assumption that anything beyond the entered destination points would result in a huge amount of data in short order -- even if the "granularity" of the way-points stored was big. Sorry, getting off again and I don't even plan on getting a Nav. Never mind....
#40 of 963 way off topic... by dcrisler Oct 05, 1999 (4:34 pm)
timothyadavis... what a small world... my last offsite contract(out of state) placed me at a regional PCS startup called Primeco, (Unix, Winnt40, & windows pc networking support & US West's Cell developement tools and informix databases...) and before that I spent years in the mini/main frame support arena with E911 customers...

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