The HELIX 5 CHIRP SI GPS G2 is one of the newest models from Humminbird for 2017. It comes with quite a few improvements over the older HELIX 5 SI GPS. The major differences are the CHIRP sonar technology and the AutoChart Live capability. As its name suggests, it's a unit with GPS and Side Imaging sonar, but it also has Down Imaging and DualBeam Plus standard sonar, all CHIRP enhanced. As for base maps for navigation, it comes with the Humminbird UniMap charts.
The PiranhaMAX 4 DI is one of the newest fish finders from Humminbird for 2017. It's also one of the most affordable units that have Down Imaging. However, as the title suggests, this is NOT a combo unit. Thereby it does not have GPS, charts or any other navigation functions. It's a standalone fish finder.
Like most Humminbird fish finders, this PiranhaMAX 4 DI does come with a transducer. The box includes the XNT 9 DI T transducer, which is also temperature capable, as it integrates a temperature probe. This transducer comes with a transom mount.
The Humminbird HELIX 12 CHIRP DI GPS shares many similarities with the smaller units, the HELIX 10 DI GPS and HELIX 9 DI GPS. However, it features several improvements over these units, and the most important one is the CHIRP sonar.
So, to begin with, let’s have a look at the sonar capabilities and the transducer supplied with this unit.
The HELIX 12 CHIRP DI GPS comes with the XNT 9 DI T transducer, which features a transom mount and incorporates a temperature sensor. Now, in case you?re
The HELIX 12 CHIRP SI GPS is the head of the HELIX family from Humminbird. Not only it offers just about everything else the other, smaller units offer, it also has a huge display, comes with a HD transducer, and features CHIRP sonar technology.
It’s one of the best, if not the best Humminbird fish finder and GPS combos for 2016, and so far, in terms of price / quality ratio it stands quite a bit higher than the ONIX 10 SI Combo. So, let’s see what this unit has to offer.
To begin with,
The HELIX 10 DI GPS model shares quite many similarities with the HELIX 10 SI GPS model. However, this model comes with dedicated Down Imaging sonar, a transducer specific for this type of sonar technology, and evidently does not have Side Imaging.
In terms of sonar, this unit offers both Down Imaging and DualBeam Plus sonar. For Down Imaging, is capable of 455/800 kHz, and the supplied transducer (XNT 9 DI T) does cover these frequencies, using thin, fan-shaped beams of 75° and 45° angles for