ben-abuya
25.04.2021 3:48:05
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Ensure that the transducer you select has the features that you want to see displayed: depth, speed, temperature, or a combination.
200 kHz (high) more
To sum up, a wide cone angle can detect fish around the boat and not just those directly under it while exhibiting less target separation. A narrow cone concentrates the sound output enabling it to better detect small details, such as fish or bottom structure, but only scans a small amount of water at a time.
The accuracy with which your fishfinder detects bottom and other objects is also determined by the frequency selected for the depth you are viewing. Raymarine depth transducers can be tuned to two different frequencies: 200 kHz (high) or 50kHz (low). more
I'm looking at the Garmin GMI 10 with NMEA 2000 interface as a start but am having trouble finding the right transducer. I'm hoping to find a in-hull model as I do not have the time to pull the boat to install a thru -hull, also, don't want another hole in the bottom. My old CN used a thru -hull that was mounted as a in-hull and has worked fine for 28 years.
Has anyone been through this in the last couple of years? and, does anyone know what the thickness of the bottom of our boats up next to but over from the engine? more
Any and all help will be appreciated.
Help, My trusty Coastal Navigator depth sounder is on its last legs and needs to replaced. more
As with broadband sonar, CHIRP transducers are available in a range of frequencies to suit different depths and applications. Simrad SonarHub™ modules and NSS evo2 displays are also capable of delivering CHIRP functionality using conventional single-frequency transducers, allowing easy and cost-effective retrofit of CHIRP technology into vessels currently wired for broadband sonar.
Dual-channel CHIRP transducers, exclusively compatible with the Simrad BSM-3 Broadband Sounder module, are able to sweep two frequency ranges simultaneously. For example, this offers the ability to scan the upper water column in high resolution with High CHIRP, while at the same time employing Low CHIRP for superior bottom tracking. more
ForwardScan output can be viewed as a solid 2D rendering of the bottom ahead of your vessel in sonar view, or integrated with the heading line on your display’s navigation page as colour-coded segments representing deep, medium and shallow water. This provides constant awareness of the depth ahead, and allows easy comparison of measured and charted depths.
CHIRP sonar is a powerful bottom-tracking and fish-finding tool. By continuously sweeping through a range of frequencies, CHIRP exceeds many common limitations of single-frequency broadband sonar. While it produces the same side-on echosounder view, CHIRP offers substantially less noise and greater target separation – for example, the ability to discern individual baitfish within a school, or to see multiple closely-spaced game fish that may appear as one target on a broadband sounder. more