Garmin echoMAP CHIRP 73sv has a widescreen display resolution of 800 by 480 pixels from a 7-inch screen which gives it more than enough real estate for crystal-clear viewing. Perhaps the main selling point of the echoMAP CHIRP 73sv is its built-in CHIRP (Compressed High-Intensity Radiated Pulse) sonar capabilities. CHIRP does not just send one frequency at a time. Instead, it sends a continuous sweep of frequencies on a low-to-high range. This puts more pulse onto the target than traditional sonar, and consequently provides more detailed returns.
Also, the Garmin echoMAP CHIRP 73sv is loaded with LakeVü HD maps, which provide highly detailed freshwater information. This resource comprises over 17,000 lakes, rivers, and reservoirs in the United States: that’s double the number of preloaded lakes from other fishfinders. LakeVü HD map technology allow you to see underwater features in amazing detail, including shallow water shading for designating a minimum depth; and it even shows other features like highways, interstates, roads, bridges, campgrounds, docks, marinas, and designated fishing areas. Additionally, the 73sv provides over 13,000 HD lakes, which contain one-foot contour markings from one shoreline to another as you fish—again, double the number that the competition offers.
And it doesn’t stop there. With the Quickdraw Contours feature, the 73sv enables you to create your own customized HD fishing maps on screen with 1-foot contours. The maps are automatically stored in your device, and you can share it with your friends or on Garmin. Also, if you have more than one sonar device installed onboard, Quickdraw Contours can automatically pick the one most capable of providing the very best possible results for you.
With a fast and responsive 5 Hz GPS/GLONASS satellite navigation system, the Garmin echoMAP CHIRP 73sv refreshes your position and heading a total of five times every second. This results in a more fluid on-screen movement, and it enhances the ability to drop up to 5,000 accurate waypoints and still manage to return to your secret fishing hotspots.
For expanding the 73sv’s flash memory, there’s a microSD card slot. This permits accessory map purchases that include LakeVü HD Ultra, BlueChart g2 or BlueChart g2 Vision. LakeVü HD Ultra in particular provides additional high-resolution relief shading, Dynamic Lake Level, Garmin Auto Guidance, and Depth Range Shading, among other benefits. You can also get Garmin Auto Guidance from BlueChart g2 Vision maps, which are instrumental in taking you to your favorite fishing areas by creating visual paths based on boat specifications. That way, you can avoid obstructions like shallow waters.
Plus, with its Panoptix port, you can add Panoptix LiveVü Forward Sonar technology with the corresponding transducer. Whether your boat is moving or is stationary, you can see live images of what is happening in the water up to 100 feet away, with the trolling motor pointed. You will be able to see everything, whether its fish swimming or reacting to the bait and attacking it. You can also see how your prey moves in relationship to the water, and the screen displays all the action as the fish struggles on the hook.
Included in the packaging of the Garmin echoMAP CHIRP 73sv are a tilt and swivel mount, transom mount, trolling motor mount, and a flush mount kit for a wealth of mounting possibilities. Also present are the device’s power/data cable, quick-release cradle and protective cover, GT52HW-TM transducer, and software and documentation for installation.
|Garmin echoMap CHIRP 73sv||Humminbird Helix 7 SI GPS|
|Screen Size||7 in||7 in|
|Screen Resolution||480 x 800 pixels||480 x 800 pixels|
|Display Type||WVGA display||256Colors TFT display|
|Imaging||2D, Down Imaging, Side Imaging||2D, Down Imaging, Side Imaging|
|Transducer Type||Transom Mount/Trolling Motor||Transom Mount/Trolling Motor|
|Transmit Power||500 W (RMS) |
4,000 W (peak to peak)
|Sonar Frequency||Traditional: 50/77/200 kHz|
DownVü: 260/455/800 kHz
SideVü: 260/455/800 kHz
|83/200 kHz 2D|
455 kHz Side Imaging and Down Imaging
|Maximum Depth|| 2,300 ft at 77 kHz freshwater|
1,100 ft at 77 kHz, saltwater
|1500 ft 2D|
100 ft Side Imaging
|GPS Antenna Type||Internal||Internal|
|Plot Trails||50,000 points; 50 saved tracks||50 w/20,000 points each|
|Preloaded Maps||LakeVu HD||Humminbird ContourXD|