A size comparison between the Navico HST-WSBL transducer and AIRMAR TM150M

Here is a quick size comparison showing the popular 300w HSTWSBL transducer on the left, to the 300w TM150M.
Same power output, with a considerable size difference in the elements.
HSTWSBL is a dual frequency 83khz @ 20o and 200khz @ 60o
TM150M is a modulated CHIRP  Medium band frequency operating at 95khz to 155khz @ 17o to 26o

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