Beginner here (with sonars).
My dad got a Helix 10 SI combo (we are fishing in saltwater, depth around 10-50 meters, Öresund).
Was very surprised when i found out after he bought it that it lacks CHIRP.
How can a product that is about twice as expensive as others (that does have CHIRP) lack a feature like CHIRP?
Again, I'm a beginner with this so I don't understand all the functions and specifications.
Also, because of DI is the Helix 10 worse than traditional sonars and/or CHIRP capable units when it comes to very slow speeds or standing still?
Do I need the Auto Chart Live product from HB or can I just buy a SDXC/SDHC card and put into the unit to get more than 8 hours list for the Heli 10?