Hi Forensics,
I don't know anything about the Rand Mc Nally GPS for palm V series, you might go and visit the following site it is very good and offers all kinds of advice (and links) on GPS:
http://joe.mehaffey.com/
Joe Mehaffey is a verry nice guy.
SNiPER, the 12CX has to my best knowledge no way of loading maps into and Garmin says the following:
"Based on the popular GPS 12XL, the GPS 12CX offers more than just a pretty picture. The LCD screen on GARMIN's new GPS 12CX takes handheld navigation to another level. Characters, icons, numbers, and letters are crisply rendered in any of three bright colors: red, green, and blue. These colors don't wash out in bright sunlight and are perfect for sorting out map pages cluttered with waypoints and tangled track logs.
The 12CX's powerful 12 parallel channel receiver gives you continuous position updates whether you're cruising the placid surface of a lake or bushwhacking in the outback. It even boasts vastly improved battery lifeup to 50 percent over the respectable 24 hours of its predecessorin case your adventures take you farther afield than you planned.
GARMIN handhelds are renowned for their ease of use, and the GPS 12CX is no different. The new keypad layout includes separate "Zoom In" and "Zoom Out" keys for simple manipulation of the moving map page, and the enhanced graphic interface organizes 1000 waypoints into an easily accessible tab-file system. This unit also comes with a full complement of advanced software features such as a point database of cities, TracBackTM navigation, and graphic steering guidance.
GARMIN's new GPS 12CXhandheld navigation of a different color."
My opinion, you don't need colors it wastes energy (batteries) so you'll have a shorter working life on a set of batteries and you can't store maps/topographical maps into memory so it CAN'T do what the GPS 12MAP can do.
Garmin itself says about the 12MAP:
"The GPS 12MAP combines the enhanced software features of the popular GPS III Plus with the rugged design of the GPS 12.
Similar to the GPS III Plus, the basemap on the GPS 12MAP will include cartography information for North and South America including a database of cities, interstates, lakes, rivers, railroads, coastlines, and exit information for the federal interstate highway system. Even more remarkable, the GPS 12MAP takes mapping one step further with an added CD-ROM capability. Simply insert one of GARMIN's MapSource CD-ROMs into your PC, and download up to 1.44 MB of extra map detail into your GPS 12MAP.
The 12 parallel channel GPS 12MAP boasts the same physical characteristics as GARMIN's 12CX (excluding color display), including a rugged, waterproof case, dedicated zoom keys for quick map scaling, and a high-resolution LCD display complete with backlighting. The unit gets up to 36 hours of battery life with four AA batteries and includes the ability to store up to 500 user waypoints.
The GARMIN GPS 12MAP: Satellite navigation you can count on, pure and simple."
The 50 feet accuracy sounds like a fine figure for me, with my 12MAP I find it's acuracy often to be better then 20 feet !
when I compare it to previously stored waypoints. Natuarly it all depends on the signal strength, current number AND relative positioning of the satelites in "view" to your position on earth.
SNiPER, go for the 12MAP or to be really UpToDate with loads of memory go for the Etrex VISTA if you need more then the "preprogrammed" "large" highways in the GPS.
LATEST UPDATE VIEW JOE MEHAFFEY's site and SEE the GARMIN LEGEND and VISTA models !!! Hot stuff in a very small package AND 8MB or 24!! MB in the Vista model internal memory to store MAPS
AND the Etrex Vista is the FIRST
GPS to be able to work with WAAS (Wide Area Augmentation Systemen by the FAA) that if working perfectly will give the Etrex an precission of about 10-12 feet
this must really make you smile
Best Scouting wishes from Holland,
Bagheera
Anyhow, I can't imagine anybody not into scientiffic research or military operations to have a problem with a 50 feet accuracy
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[This message has been edited by Bagheera (edited 02-27-2001).]
[This message has been edited by Bagheera (edited 02-27-2001).]
[This message has been edited by Bagheera (edited 02-28-2001).]