Exchanging data between two Garmin GPS receivers?

I have a fixed Garmin 128 GPS receiver onboard. Used to take a
portable computer onboard so at the end on my trip I could donwload
all data about my track, speed etc.

I noticed I could use my handheld Garmin GPS 48 (which is also onboard
as a reserve unit) to transfer route and waypoint information from
boat to home and vice versa, as there is this Garmin propriatary
interface setup. No need to bother with a laptop and serial cable.

All data such as waypoints, track and routes moves fine back and
forth. However, I have not been able to read timestamps of my track
data. Is that possible, and how? Laptop works fine and I can download
time data, but I would rather use just my GPS for data transfer...

Mika



...............................................................
A bad day on the water is better than a great day on land.

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Mika wrote:
> I have a fixed Garmin 128 GPS receiver onboard. Used to take a
> portable computer onboard so at the end on my trip I could donwload
> all data about my track, speed etc.
>
> I noticed I could use my handheld Garmin GPS 48 (which is also onboard
> as a reserve unit) to transfer route and waypoint information from
> boat to home and vice versa, as there is this Garmin propriatary
> interface setup. No need to bother with a laptop and serial cable.
>
> All data such as waypoints, track and routes moves fine back and
> forth. However, I have not been able to read timestamps of my track
> data. Is that possible, and how? Laptop works fine and I can download
> time data, but I would rather use just my GPS for data transfer...
>
> Mika
>
>
>
> ..............................................................
> A bad day on the water is better than a great day on land.
>
> Lähetätkö e-mailia? Vaihda osoitteen eka (vai oliko se toka?)
> kahdeksikko numeroksi viisi.

Have never tried to transfer data between 2 Garmins, but provided you can
connect them, as they both have the facility for input/output, using packet
transfer (Garmin protocol). On the 48, If you set the i/o to Grmn/Grmn, and
move the cursor down one line and press enter, you get a whole lot of
different options to send/receive data by pressing the up/down keys. You
could make a double-ended 4-pin plug cable.