Humminbird Side Imaging Forums
		General => General Discussion => Topic started by: rnvinc on May 04, 2013, 02:27:47 PM
		
			
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				What was the original technical reasoning for the 2d beams of the XNT 9 DI T being 200kHz and 455kHz...instead of the standard Dual Beam frequencies of  200kHz and 83kHz...??
 
 (Yes I know HB makes the XTM 9 WIDE DI 20 T which has the standard 200/83...but the XNT 9 DI T came out first)..
 
 Rickie
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				I don’t know the answer to that Rickie. 
 Maybe it was the size of the 2D element?
 
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				Maybe they had walleye fishermen in mind with the 16° degree angle for better target separation from the bottom...??
 
 I don't know either...
 
 Rickie