Pros & Cons
- 2D and DownVü CHIRP sonars
- Dual frequency mode for 2D sonar beams
- GT20-TM transducer with a temperature sensor
- High-sensitivity GPS
- Tilt mount included
- 480p WVGA display with an adjustable backlight
- No pre-loaded maps
- No sonar recording
- No microSD card reader or NMEA outs
|Specifications||Garmin Striker 7dv|
|Sonar||Dual Frequency 2D CHIRP, CHIRP DownVü|
|Transducer||GT20-TM (4-pin), for HD-ID and DownVü|
|Display (size, resolution, backlit, color)||3.6'' x 6'' (9.1 x 15.2 cm); 7'' diag (12.7 cm) ; 800 x 480 pixels ; WVGA color|
|Dimensions||9.3'' x 5.5'' x 2.3'' (23.5 x 14 x 5.8 cm)|
|Weight||24 oz (680 g)|
|Depth Capability||2,300 ft freshwater*, 1,100 ft saltwater|
|Frequency||Traditional: 50/77/200 kHz CHIRP (mid and high) ClearVü: 260/455/800 kHz|
|Power Output||500 Watts (RMS)|
|Power Input||Current draw @ 12V: 0.55A|
|Routes, Waypoints, Tracks||5000 points|
|MicroSD card slot||No|
Garmin Striker 7dv features a pretty compact casing compared to its EchoMAP counterparts, which makes it a better solution for outdoor usage. Its water-resistance rating is IP-X7, so rain, splashes, and accidental submersion in 3.3’ of water for up to 30 minutes should not harm the unit. However, the “X” in the rating means it has not been tested against the entry of solid objects like dust, for example.
Striker 7dv has a 7” WVGA color display with a resolution of 800 x 480 pixels, which corresponds to the 480p standard with an aspect ratio of 5:3. The screen measures 9.3” x 5.5” x 2.3”. WVGA (Wide Video Graphics Array) has the same height as VGA (480 pixels) but is wider than 640.
The device allows you to use up to 3 separate panels in the split-screen mode and the added size of the display makes the sonar and GPS much easier to observe. The display also features an adjustable backlight, which keeps it bright even in direct sunlight.
Sonar & Transducer
The Striker Series is famous for its CHIRP technology on both implemented sonars (standard 2D and DownVü), which means every pulse released by the sonar covers a wide range of frequencies instead of using just one. This does not just provide you with better depth penetration (2,300ft freshwater; 1,100ft saltwater) and target definition but also rids the screen of excess clutter (the AutoGain tech).
The 7dv unit comes with the GT20-TM transducer with a 4-pin connector. The transducer covers the ranges of 77/200 kHz for 2D and 455/800 kHz for dv. It comes with a temperature sensor, transom mount, and 20ft of cable.
The official Garmin Striker dv specification states that the unit can also hit 50 kHz for 2D and 260 kHz for dv, but you will only be able to reach these lower frequencies if you upgrade the transducer to GT22 or GT23 (each sold separately).
The implemented GT20-TM transducer utilizes cylindrical beams for the traditional 2D sonar angled at 45° for 77 kHz and 15° for 455 kHz. Although the 77 kHz frequency is better for wider sweeps and the 455 kHz frequency for focusing on a specific target, the fact that Striker 7dv is a dual-frequency device means that you can use them both at the same time and observe the imaging in split screen. The 2D sonar also comes with numerous additional functions, including Fish Symbols, Circular Flasher, A-Scope, and Bottom Lock.
Garmin Striker 7dv comes with a high-sensitivity GPS, but it does not feature any maps. The unit is not compatible with any charts and it does not have a card reader.
On the other hand, the GPS does not only allow you to measure the overall speed of your vessel but also determine your current coordinates and locate potential POIs. Speaking of places of interest, the device enables you to save up to 5,000 waypoints with very expressive icons and record your current route for safer backtracking. You can also share your saved data with other Striker or echoMAP chartplotter combos.
Apart from marking potential fishing hotspots, the implemented GPS allows you to mark boat ramps and docks as well as distinct landmarks in the area like stumps and brush piles. Finally, if your orientation skills are not great, the GPS is an excellent tool to help you navigate your way back to the dock.
As we already mentioned in this Garmin Striker 7dv review, the unit can share its recordings and saved data with other Striker or echoMAP chartplotter combos. Since the device DOES NOT come with preloaded maps and charts, it has very little use for Garmin apps primarily designed for chartplotter devices. Additionally, Striker 7dv does not come with a card reader, which means you cannot use U.S. LakeVü HD to load HD maps onto your device. On top of that, it also comes without any NMEA outs.
What's In The Box
- STRIKER 7dv
- GT20-TM transducer
- Transom and trolling motor mounts
- Power cable
- Tilt mount
Garmin Striker Series Overview
In this Garmin Striker series overview, you can check out some of the most important features of other models from the series to determine if any of them is a better fit for your needs.
Garmin Striker 7dv is an excellent choice for freshwater anglers and it can also be used for off-shore fishing thanks to its decent depth penetration. It can be used on any bass boat, but it is not recommended for kayak fishing due to its larger size.
The unit features both traditional 2D and DownVü sonars, the GT20-TM transducer, numerous 2D sonar functions, a high-sensitivity GPS, a temperature graph, and a high-quality 480p display. It also allows you to save up to 5,000 waypoints for easier navigation. The GPS, however, comes without any maps and charts, so Striker 7dv is not ideal for anglers looking for optimal navigation features.