Somebody please help.

**Fisherman_Wantabe** · 02-02-2019, 07:29 PM

This new boat I got has 2 Helix 7 G2 fish finders on it. The one on the console is a Helix 7 DI GPS G2? That's my first question the manual I down loaded does not show that unit?
The one on the trolling motor is a Helix CHIRP GPS G2. My question here is what the heck is CHIRP?? I done a few searches here and HB forum but I still don't understand what it is
really doing and how to use it.
Not like the 1199 and 777C I had on my old boat.
Thanks for any help here.

**scrat** · 02-02-2019, 07:47 PM

You can learn a lots about just every sonar there is on youtube.

**Fisherman_Wantabe** · 02-02-2019, 08:15 PM

Originally Posted by scrat

You can learn a lots about just every sonar there is on youtube.

Yep done watched a few. None of them say what CHIRP is? New software? New hardware? Maybe I'm just getting old??

**CrappiePappy** · 02-02-2019, 09:43 PM

CHIRP is the most sophisticated sonar technology available for use by the fishing and boating public. The word itself is an acronym for Compressed High-Intensity Radiated Pulse.

CHIRP sonar generates an image using a wider range of frequencies, which allows the processor to produce a much more accurate and detailed sonar image of fish, structure, or the bottom. "For freshwater use, 200 kHz is the most commonly used frequency with traditional 2Dsonar.

**Fisherman_Wantabe** · 02-03-2019, 08:55 AM

Originally Posted by CrappiePappy

CHIRP is the most sophisticated sonar technology available for use by the fishing and boating public. The word itself is an acronym for Compressed High-Intensity Radiated Pulse.

CHIRP sonar generates an image using a wider range of frequencies, which allows the processor to produce a much more accurate and detailed sonar image of fish, structure, or the bottom. "For freshwater use, 200 kHz is the most commonly used frequency with traditional 2Dsonar.

Thanks for the info.

**6poundtest** · 02-03-2019, 09:45 AM

A simple search of "what is chirp sonar" on most any search engine will give a number of webpages with great explanations of what it is and how it works.

**ezfishn** · 02-03-2019, 12:12 PM

If your Helix 7 DI GPS model doesn't have CHIRP, then it is the first generation model. The manuals on the Humminbird site are probably only for the G2 model. The below link should be for the basic Helix 7 DI model:

Humminbird HELIX 7 DI Manuals

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