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Thread ID: 54069	2005-02-03 10:04:00	GPS - maps NZ	Mercury (1316)	PC World Chat

Post ID	Timestamp	Content	User
321138	2005-02-04 05:47:00	Does the unit incorporate an internal antenna? If not, it will need the correct (and expensive) external one. There will be connections to the vehicle lighting circuit (display dimming at night) and goodness knows what else.	godfather (25)
321139	2005-02-04 09:01:00	Navman (www.navman.com) provide GPS type software with NZ maps. Dunno whether it will be able work on your unit, but it's always worth a shot. Their ph is 0800 466 28626	Antmannz (6583)
321140	2005-02-04 09:12:00	Does the unit incorporate an internal antenna? The unit looks complete - antenna, remote, the lot. Our first problem is to test it - preferably without blowing it up. It is possible that we may find someone tomorrow afternoon (daughter's birthday party - last year she took us paintballing {ouch}, this year it's go-carting) who can identify the wiring. If we can get it working then we will get an indication as to what it does and will study, in depth, all the links to software.	Mercury (1316)
321141	2005-02-04 09:19:00	You need New Zealand Map Grid coordinate format, which most GPS units have nowadays. I wonder how long it'll take, whoever it is that decides, to move GPS units from the outdated New Zealand Map Grid to the more recent New Zealand Transverse Mercator? Surely there are some GPS units using NZTM by now? Mike.	Mike (15)
321142	2005-02-04 10:42:00	... from the outdated New Zealand Map Grid to the more recent New Zealand Transverse Mercator?... :confused: Now THAT is showing off! :) No doubt it has some obtuse meaning but it is totally beyond me at the moment. I like your location though...	Mercury (1316)
321143	2005-02-04 18:56:00	I wonder how long it'll take, whoever it is that decides, to move GPS units from the outdated New Zealand Map Grid to the more recent New Zealand Transverse Mercator? Surely there are some GPS units using NZTM by now? Mike . :thumbs: Presumably it will take time . Since all the 1:50,000 maps are NZMG, and will continue to be used for a long time then the GPS readouts will also need to continue with NZMG . But then the option to choose will be needed when new maps start appearing . I'm not sure what the actual differences in metres on the ground is between the two grid systems, probably not more than a few tens of metres . For ordinary tramping navigation that wouldn't matter, (not that GPS in the bush is very good!) but if you wanted to aim a guided missile through a politicians toilet window, then it would :dogeye: Any idea Mike when the new grid will appear on maps? Just editing in a comment, the Pioneer unit appears to be quite old , but as I cant read Japanese I'm not sure . I think it is around 1990+? It certainly wont have NZMG built in, but as well as any inbuilt Jap maps, it may give the latitude and longitude, which is what I meant to say earlier .	Terry Porritt (14)
321144	2005-02-05 02:09:00	It's a consumer item, Terry. I doubt if Pioneer would consider car drivers capable of handing concepts as esoteric as longitude and latitude, even Japanese car drivers. They need pictures. ;) The red and black wires are almost certainly +/- 12 V. It's fairly likely to need an external aerial, but that wouldn't be connected with a "wire" (of any colour). It needs a high quality coaxial cable to handle the very high frequency signal from the satellites.	Graham L (2)
321145	2005-02-05 03:18:00	It's a consumer item, Terry . I doubt if Pioneer would consider car drivers capable of handing concepts as esoteric as longitude and latitude, even Japanese car drivers . They need pictures . ;) That's right, no time to read coordinates when driving! Here's some info from LINZ, but first a quote: "In August 1998 Land Information New Zealand approved the adoption and implementation of a new geocentric datum, New Zealand Geodetic Datum 2000 (NZGD2000) to replace the existing New Zealand Geodetic Datum 1949 (NZGD49) . One of the major effects of this new datum is that the coordinates (latitude and longitude) of points in terms of the new datum will change by approximately 200m relative to the old datum . " So we may all be displaced by 200 metres, but since everyone will be affected at the same time we wont actually notice any change :nerd: . linz . govt . nz/rcs/linz/5684/nztm . pdf" target="_blank">www . linz . govt . nz For all the low-down on geodetic systems, their publication, "Where in the World are We" looks good: . linz . govt . nz/docs/surveysystem/survey_publication/witwaw . pdf" target="_blank">www . linz . govt . nz	Terry Porritt (14)
321146	2005-02-09 19:45:00	Talk to the guys at GeoSmart (http://www.geosmart.co.nz/). They might have software, or tell you where you can get it, or even how to work the thing maybe? Not sure really... HTH Mike.	Mike (15)
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