Raymarine with Chirp 7inch

A Garmin or equivalent with a better Chirp transducer... or even probably the base TM150 Chirp will absolutely outperform those (for a few dollars more obviously). For a lake, that is probably an exceptional unit. Priced well, but you get what you pay for, very much mixed reviews for the 5" in the salt, which from what I am guessing is going to be the same relative performance as the 7, without the bigger screen.
 
How about the new lowrance sonar hub with tm150 for your HDS units,
hub and ducer for 800.00 ish was to be released today.
 
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