GPS Sonar opinions

[dhensonsc]

I would appreciate any insight into GPS Sonar units. Going to purchase a new unit for my bass boat. Budget is under $500.00. Thanks in advance for any opimions.

 

[jhebert]

Re: GPS Sonar opinions

I suggest four areas for comparison:

--satellite navigation receiver: is the unit a GPS-only device or can it utilize other satellite navigation systems like GLONASS?

--included cartography and additional cartography: does the unit include a good base map? What brand digital charts can it use? How much are the additional charts? Are there charts for the waters you use?

--SONAR capability: what type of SONAR and what frequencies of operation are provided?

--networking capability: does the unit support NMEA-2000 networking? Does it provide basic NMEA-0183 interconnection? Does it have Ethernet capability?