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fishsmith · 08-04-2008, 11:10 AM

Can anyone speak to the quality of the fishfinder on Garmin 5 series (540/545) chartplotters? I know you need to buy the GSD21 black box to feed in the transducer, but if the quality isn't there, why spend the $200 for the black box.

08-04-2008, 11:10 AM	#8
fishsmith DDG-51 iTrader: (0) Join Date: Mar 2002 Posts: 3,550	Can anyone speak to the quality of the fishfinder on Garmin 5 series (540/545) chartplotters? I know you need to buy the GSD21 black box to feed in the transducer, but if the quality isn't there, why spend the $200 for the black box.