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GPS City Q&As » Marine GPS » Garmin GPSMAP 421s Sounder with Dual Frequency Transducer Q&As
Garmin GPSMAP 421s Sounder with Dual Frequency Transducer: Is this compatible with Mapsource Toponav 1:20000 Québec? (2 replies) Reply To This Question  
Item Original Question
Go to the Garmin GPSMAP 421s Sounder with Dual Frequency Transducer webpage

Is this compatible with Mapsource Toponav 1:20000 Québec?


› Garmin GPSMAP 421s Sounder with Dual Frequency Transducer
Author Reply
Manuel Larente
Rivière-Rouge, Québec
Original question asked on Jul 11, 2012, 6:48am
i just bought 421S. does not work with mapsource toponav 1:20000 Québec. works with tpop canada but not to precise. works good with marine trakmap, its like plug and play.
anyone can help me to have mapsource toponav 1:20000 Québec works
thank

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Jordan
GPS City
Reply #1 on Jul 11, 2012, 4:44pm
It should work if the format is like topo Canada or marine maps. I suggest if you just got the 421S to load a memory card with the maps and try it in the unit. Please let us know if it worked for you. We do not have access to the 1:20000 maps to test for you

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Manuel Larente
Rivière-Rouge, Qc
Reply #2 on Jul 12, 2012, 7:26am
yes, topo canada, marine trakmap and toponav have same file extension .img, i can read all maps with map source or base camp and transfert maps to SD card. marine trak map and topo canada works with my 421S, but not toponav. i contact the compagny who sold me toponav and they gave a unlock number for my maps so it could download to 421S SD card with his ID number and to be able to read from the device. But nothing works so far. Toponav should come back to me after checking with his program analyst. but if you find something before, would be appreciate. Thanks

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