I currently use a Helix 5 DI/GPS on front of my Blazer SS. I am using the supplied XNT 9 DI T transducer on the trolling motor with a shield on it. Would there be any advantage SWITCHING to the XTM DI 25 T. I'm thinking they both have the same coverage and I am not having any interference issues.
The piezoes are the same in both ...the housing is different ...
The XTM 9 DI 25 T has extra shielding for possible interference issues ...
Over time, as your TM brushes wear = this can eventually cause interference ...
HB offers a xducer exchange program when the xducer is still new ... Yours being used now would just incur cost of buying the XTM 9 DI 25 T for a future interference issue that may or may not ever occur ...
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There is advantage in upgrading to the XTM 9 WIDE DI 20 T as this puck style xducer has 83kHz/60° and 200kHz/20° 2d beams (and extra shielding) ...
Check your "Connected Transducer" Menu under the Sonar tab for a "HB + 83/200" selection to see if your unit will support the XTM 9 WIDE DI 20 T ...
Rickie