Top Five Fishfinders
| Rank | Model | Rating | |
|---|---|---|---|
 | Humminbird 597ci HD DI |  | |
 | Humminbird 898c SI |  | |
 | Garmin Echo 300c |  | |
 | Humminbird 788ci HD DI | | |
 | Lowrance Elite-5 DSI | |
Review of Garmin GPSMAP 720S
| Overall Rating | No Ratings |
I use the Garmin GPSMAP 720S as the marine chart plotter on my boat. It is designed with a touch screen that allows me to navigate the device options quickly. The 8.8 inch by 3.1 inch by 5.6 inch housing of the fishfinder at a weight of 13 pounds, allows me to place the device anywhere on my boat without having to compromise with any other pieces of equipment. The 7 inch diagonal touch screen provides all of the data I need to plot my potential fishing spots.
I make use of the 1kW sonar transceiver every time I am going to be fishing at depths down to 2000 feet. It helps to also avoid dangerous snags when I drop anchor in locations where there are many underwater structures. I also get the BlueChart g2 Vision SD card data for my favorite fishing locations to have greater precision with my casts. It simply goes into the Garmin GPSMAP 720S with the available SD card slot and works within seconds.
The GPSMAP 720S has a built in antennae, capable of an output of 3000 waves per second and can provide an accurate, plotted chart within seconds. I tend to monitor the screen for subtle changes which can hook me the larger fish. I was able to use my radar system input and I saw that it also supports NMEA 2000 interface connectivity.
I also get advanced weather graphical data for North America so I always know when to return to harbor and avoid dangerous water conditions. It only needed a GXM 51 satellite receiver which has been a great investment. Fortunately the GXM 51 works with the NMEA 2000 bus alone and does not require an external power supply. All I needed to do was plug it into the Garmin GPSMAPS 720 and it worked like a charm.
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