Hi All,
I'm looking at adding fish finder/bottom contour information to my GPS - I'm really after bottom composition and contour more than fish, and this requires addition of a 50/200Khz transducer. There are many flavors available, and the one Garmin has for in-hull use e.g. don't cut a hole but shoot through the laminate is an Airmar P79, as seen here:
http://airmartechnology.com/airmar2005/ex20/RMProducts/ElectCat.asp?ProdID=52&Man=Garmin&PageNo=99
Here's my big question. I used one of the P79s with a simple depth finder many years ago on my prior E-27, and it worked. This was not using it as a transducer for fish finder/bottom contour information. I am trying to figure out if there is a sensitivity difference that might come into play between how the signals are interpreted. Also, the Indpendence 31 is about 1" solid layup on center line, and is going to probably be in the 3/4"+ thick range down in the bilge area where I would mount this. I believe this is thicker than my E-27 was. Does anyone have real life experience of using one of these as a fish finder/bottom contour instrument and did it give consistant readings?
Thanks in advance for any and all feedback.
I'm looking at adding fish finder/bottom contour information to my GPS - I'm really after bottom composition and contour more than fish, and this requires addition of a 50/200Khz transducer. There are many flavors available, and the one Garmin has for in-hull use e.g. don't cut a hole but shoot through the laminate is an Airmar P79, as seen here:
http://airmartechnology.com/airmar2005/ex20/RMProducts/ElectCat.asp?ProdID=52&Man=Garmin&PageNo=99
Here's my big question. I used one of the P79s with a simple depth finder many years ago on my prior E-27, and it worked. This was not using it as a transducer for fish finder/bottom contour information. I am trying to figure out if there is a sensitivity difference that might come into play between how the signals are interpreted. Also, the Indpendence 31 is about 1" solid layup on center line, and is going to probably be in the 3/4"+ thick range down in the bilge area where I would mount this. I believe this is thicker than my E-27 was. Does anyone have real life experience of using one of these as a fish finder/bottom contour instrument and did it give consistant readings?
Thanks in advance for any and all feedback.
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