Thread: New fish finder

Originally Posted by rnvinc

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Minn Kota US2 built in xducer is not compatible with HELIX G3N or G4N because US2 is 83kHz/200kHz 2d Sonar and HELIX G3N and G4N utilize CHIRP HW Low Q 2d Sonar ...

Note: US2 only pertains to the built-in 2d xducer in the Minn Kota TM
Rickie

I should clarify my statement above a little more in depth because Minn Kota US2 can be used with newer Humminbird units - but with certain limitations ...

*Minn Kota US2 uses fixed frequency 83kHz/200kHz 2d Sonar
*Minn Kota MDI uses CHIRP HW Low Q 2d
*Minn Kota MSI uses CHIRP HW Low Q 2d

*HELIX G3N and G4N transmits CHIRP HW Dual Spectrum 2d Sonar which is designed to work with the Minn Kota MDI or MSI built in transducers ...

*HELIX G3N and G4N can be configured to transmit fixed frequency 83kHz/200kHz (for the US2) but that configuration also turns off the capability of the HELIX G3N or G4N to transmit the MEGA (1200kHz) imaging frequency allowing only 455kHz/800kHz imaging.

In effect the HELIX G3N or G4N has to be “dumbed down” to utilize the Minn Kota US2 ... losing other desirable features of the newer HELIX ...

All this techno speak is basically saying that 83kHz/200kHz (US2) is older 2d technology and CHIRP Low Q HW is newer 2d technology ... and there are limitations in connecting a newer technology HELIX (G3N or G4N) to an older technology 2d transducer (US2) ...

Rickie[/QUOTE]