[OSM-Talk-ZA] Cheap GPS DataLogger on BidorBuy
1tinshack at gmail.com
Sat Feb 13 05:03:29 GMT 2010
I've got something similar (Globalsat BT-335). What I like about
having a unit without a display is that you can just chuck it in your
bag (or wherever it is that you can get good reception) without
additionally having to orientate it so you can read it.
Mine stores about ±40 000 points with altitude (±60 000) - the 747A
seems similar. Setting the logging interval to once-a-second means I
can drive around the local game park for 1 1/2 days before it runs out
of memory (about 11 hours).
I use my phone to display information from the GPS. I use either
Trekbuddy (which renders raster map tiles like those used on OSM's home
page) or GpsMid (wich renders vector OSM data). Boths of these have
ways of logging your track, either to GPX or NMEA files, and as long as
you've got memory on your phone, you can carry on logging, even after
the GPS runs out of on-board memory. My only problem with this loggins
setup is that logging to file will stop if the bluetooth connection is
lost. Trekbuddy keeps on trying to re-establish, but GpsMid gives up
after about a minute.
I've found it to be reasonably accurate (as far as GPS is accurate) and
about the only place I found a real difference was in buildings (but I
don't really expect any GPS to work there).
On 2010/02/12 10:30 PM, John Grant wrote:
> I have been tempted by the 747A. My old Garmin etrex is getting on and often
> struggles under trees.
> The 747A seems to be a good basic data logger, small, reasonable battery life.
> No display although blue tooth available for use with smart phone etc.
> Replacable battery albeit Nokia phone battery (AA may be more accessible) for
> longer hikes etc. Then no SD card although still reasonable memory. A small
> limited display would also be nice for spedd, distance etc ala Holux M241
> Any other good ideas for a good data logger?? Heinz, would be interested to
> here your experience.
> On Thursday 11 February 2010 09:32, Heinz Meulke wrote:
>> I bought one.... got it in 14 days... paid about R690 with shipping
>> and customs clearing charges
>> Shipping was R120
>> Customs clearing R25
>> price dependent on exchange rate....
>> have not had a chance to use it and collect tracks though
>> On Wed, Feb 10, 2010 at 7:23 PM, Grant Slater
>> <openstreetmap at firefishy.com> wrote:
>>> On 10 February 2010 17:13, Nic Roets<nroets at gmail.com> wrote:
>>>> Except the seller is located in Germany. I'd only buy on bidorbuy when
>>>> the seller is close enough that I can collect the goods. Fraud is really
>>>> rampant in SA, and then there's also the possibility of buying stolen
>>> Yup, so also the possibility of a customs whack. The guy's bidorbuy
>>> rating is fairly impressive.
>>> / Grant
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>>> Talk-ZA at openstreetmap.org
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