Editor's Review
Humminbird 798ci HD SI
| Overall Rating |   |
The Humminbird 798ci HD SI offers the high tech features that you need to make the most of your fishing excursion. With 4000w of PTP power output and a user-friendly interface and menu, this fishfinder is ideal for the angler of any skill level. Don’t miss a minute of the action with instant image updates. Take a screen snapshot and send it directly to the memory card so that you can save data as you encounter it. You can even save your favorite views with three programmable buttons available for the job.
GPS Chartplotting helps you see the waypoints, tracks and routes you have taken to keep you on course. Navigate nearly any lake in the U.S. with the built-in Contour XD. See detailed maps of over 3,000 lakes including the depth contours that can show you were the fish hang. With the included dual memory card slots you can take advantage of additional maps and cards that allow you to save snapshots and waypoints.
Down Imaging on the 798ci HD SI takes you directly beneath the boat to see fish, structures and the bottom in crystal clear detail. View below the surface up to 100ft deep. With Side Imaging, your view expands to 240ft to the left and right. Sonar snapshots are taken of the area below and to the side. They are then combined to offer you a detailed 180 degree picture of the bottom. You can easily mark the GPS location of structure and gain an accurate representation of where to drop your line.
Take advantage of the DualBeam Plus Sonar to expand your coverage using both the narrow and wide beams. Combine them together and gain highly accurate returns in depths of 1500ft. Alter the returns based on fishing and water conditions using Switchfire technology. Choose to display detailed returns or only the fish and structures. With a 640 X 640 resolution display on a 5” color screen, your returns will come to life before your eyes.
Lowrance HDS-7 vs Humminbird 798ci SI vs Humminbird 858c DI
| Lowrance HDS-7 | Humminbird 798ci SI | Humminbird 858c DI | |
|---|---|---|---|
 |  |  |
|
| Screen Size | 6.4 in / 163 mm | 5 in / 127 mm | 7 in |
| Screen Resolution | 480 x 640 pixels | 640 x 640 pixels | 480 x 800 pixels |
| Display Type | 16-bit color Full VGA SolarMAX™ PLUS TFT | 256 Color TFT | 16:9 Color TFT |
| Imaging | 2D | 2D and Side Imaging | 2D and Down Imaging |
| Transducer Type | Transom Mount/Trolling Motor | Transom Mount/Trolling Motor | Transom Mount/Trolling Motor |
| Transmit Power | Max 250W Broadband, analog equivalent 30000W and 32W Broadband, analog equivalent 3750W | 500W RMS 4000W Peak-to-Peak | 500W RMS 4000W Peak-To-Peak |
| Sonar Frequency | 50/83/200 kHz | 83/200 kHz 2D 455 kHz Side Imaging | 200/455 kHz 2D 455/800 kHz Down Imaging |
| Maximum Depth | 5000 ft / 1524 m | 1500 ft 2D 100 ft Side Imaging | 600 ft 2D 250 ft Down Imaging |
| GPS Antenna Type | Internal, high-sensitivity GPS+WAAS | Internal | Internal |
| Waypoint Storage | 5000 | 2500 | 3000 |
| Routes | 200 | 50 | 50 |
| Plot Trails | Up to 10 trails - up to 12,000 points/trail | 50 w/20,000 points each | 50 w/20,000 points each |
| Background Map | Expanded U.S. BaseMap or Insight USA | Humminbird ContourXD | Humminbird Contour XD |
| MSRP | $1119.99 | $1109.99 | $1199.99 |
| Reviews | Reviews | Reviews |
Reader Reviews
Posted by Bruno Landon
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4The essential components of Humminbird 798ci hd si are sonar, a transducer for control of the sonar, receiving unit with a display screen, and all navigational aids and other accessories for viewing, mapping and recording. The sonar can operate at a depth of 1500 ft. and it can reach within 2.5 inches from target fish, which enables it to send images very clear high definition images to be described in the viewing screen.
The 798ci hd si has a wide viewing and using all of 500watts and a peak of 4KW frequency. It has equipment with memory of 3000 waypoints and 50 routes. The sonar operates at 2 frequencies of 83 kHz and 200 kHz. It can sense and transmit any sound in excess of 10db on both the frequencies. Side and down imaging operation take at a frequency of 455 kHz, at a maximum depth of 100ft and an angular coverage of 86degrees for a sonar level in excess of 10db. The side and down imaging has a total coverage of 180 degrees.
The Humminbird 798ci hd si comes with Navionics feature. The GPS coming with the fishfinder gives the angular a clear idea about the location and you can decide whether the correct path has been chosen. The GPS provides the necessary data for chart plotting. It has built in contour hd Xd map. Using a fishfinder the boat has advanced fishing facilities. There is provision for saving way points and slots for maps. The entire equipment carries a warranty for trouble free operation, against any manufacturing defects or any defective materials used in manufacturing.
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