The starfish range has gained worldwide recognition as the most compact affordable towed side scan sonars for the professional underwater survey industry.
Affordable side scan sonar.
There are two ways a fish finders scan.
Port and harbor security sonartrx supports recordings from the most affordable sidescan sonars available including fishfinder style products such as humminbird sonars with side imaging lowrance structurescan and garmin sidevu.
Side imaging utilizes thin beams of sonar to scan 180 degrees roughly 240 feet left and right of your watercraft.
Side imaging sonars also referred to as side scan sonars are a set of sonar system that was developed to create an image of large areas on the seafloor effectively.
Lowrance hook 3x sonar.
For side imaging and down imaging the unit can scan at 455 khz or modulate between 420 520 khz via chirp.
This sonar device emits conical or fan shaped pulses down towards the bottom of the sea across an extensive range perpendicular to the path the sensor follows through the water.
200 khz 20 and 83 khz 60 side imaging.
This aids the fish finders computer chip in rendering a more accurate picture of the seafloor.
Either down or side.
The full body three fin hydrodynamic design of the starfish systems challenge the common cylindrical or torpedo shape of traditional side scan sonars.
The imagenex sportscan is an affordable dual channel high resolution digital side scan sonar geared toward the sport diving market.
86 x2 800 ft side to side coverage at 455 khz and 500 ft side to side coverage at 1 2 mhz down imaging.
It means you can use both beams simultaneously.
It is the best fish finder for your money and it is the best affordable fish finder.
The transducer offers quite a good coverage for 2d.
Connect a gps receiver for latitude and longitude coordinates.
Down imaging is pretty self explanatory and what most typical fish finders do.
Humminbird helix 5 chirp gps g2 humminbird helix 7 chirp gps g2 g2n garmin echomap plus 43dv 63dv lowrance elite 5 ti elite 7 ti garmin striker plus 9sv 7cv.
The fish finder that does down scanning is more powerful and useful but they can miss things not passing directly beneath the.
Additionally if you have to mount the side imaging sonar every time you go fishing check for the quality of the releases and locks as well as how easy it is to install and remove them.
All that is needed is a 12 vdc power source.
Prices of side imaging sonars can vary from hundreds to thousands of dollars depending on the features general quality and size of the display.
Dualbeam plus is the 2d sonar used in this case.
