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Author Topic: Palm V and Magellan GPS  (Read 964 times)
AA5ZC
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« on: February 27, 2001, 07:22:48 PM »

I have a new Magellan/Rand McNally Streetfinder GPS unit. This GPs attaches to the Palm V like all other Palm V accessories; the arrangement blocks the PDA's serial connector, for good reason.

To conserve battery power (2 AAA batteries) the GPS unit accepts 12VDC through a mini plug on the side. The PDA does not accept external power other than through the serial connector; it requires 4VDC.

What I'd like to do is tap into the 12VDC, inside the GPS unit's case, and bring +4VDC to the correct pins of the serial connector. I have already opened the GPS case and verified there is room for some small circuitry.

Without this mod, the Palm is capable of only about an hour of GPS use. I plan to use the setup on a bicycle, attached to a 12V gel-cell.

I will take pictures of the GPS unit and supply connector pinouts, if necessary, to anyone willing to assist with this mod.

Please help me navigate my bike rides!

Michael L. Hoenig
AA5ZC
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