{"product_id":"navico-xsonic-r509lhw-broadband-transducer","title":"Navico XSONIC R509LHW Broadband transducer","description":"\u003ch4\u003eThe Fishfinding Revolution is Here!\u003c\/h4\u003e \u003cp\u003eAirmar’s new Broadband transducers represent the next generation of technology that will allow fishermen to unlock new secrets in fishfinding. These transducers are designed for\u003cbr\u003e use specifically with Broadband, CHIRP, FM, and Spread-Spectrum fishfinders.\u003c\/p\u003e \u003cp\u003eCHIRP Fishfinders transmit across a wide frequency band instead of using a single frequency. This is also known as “Frequency Modulation” or “Spread-Spectrum” Transmissions.\u003cbr\u003e These waveforms are typically of long duration and for example may start at 42 kHz and end at 65 kHz. Energy transmitted into the water can be 10 to 50 times greater than a traditional fishfinder. By storing the shape of the transmitted waveform in memory and comparing it to the received echoes using pattern\u003cbr\u003e matching techniques (also called pulse compression), it is possible to find targets within the noise and precisely determine their range with astounding accuracy (see photo).\u003c\/p\u003e \u003ch4\u003eBenefits\u003c\/h4\u003e \u003cul\u003e \u003cli\u003eExtreme target detail and image resolution at all depths.\u003c\/li\u003e \u003cli\u003ePrecise separation between baitfish and gamefish.\u003c\/li\u003e \u003cli\u003eBottom discrimination of fish laying on the seabed.\u003c\/li\u003e \u003cli\u003eDeep sounding accuracy down to 3,000 m (10,000’).\u003c\/li\u003e \u003cli\u003eAbility to detect targets at greater depths \u0026amp; higher speeds.\u003c\/li\u003e \u003cli\u003eAbility to find targets within the noise (“snow” on the displa.\u003c\/li\u003e \u003c\/ul\u003e \u003ch4\u003eMore Energy on Target = Better Fish Detection\u003c\/h4\u003e \u003ch4\u003eTraditional fishfinders\u003c\/h4\u003e \u003cp\u003etransmit pulses at a single frequency (such as 50 kHz and 200 kHz) and this pulse is often referred to as a “tone burst”. These pulses can be of very high power but are typically of very short duration and this limits the energy that\u003cbr\u003e can be transmitted into the water.\u003cbr\u003e With tone burst fishfinders there is always the trade-off between pulse length and target resolution. For example, if a fishfinder transmits a pulse that is 500 microseconds in duration, it has a pulse length of 0.7 m (2.4’). With a tone burst, no targets can be resolved that are closer to one another than the pulse length. So fish less than 0.7 m (2.4’) apart will appear as a single large mass, and fish less than 0.7 m (2.4’) from the bottom will appear attached to the sea bed and will be difficult or impossible to detect. See graphic illustration above. Longer pulse lengths at 50 kHz are typically used to put more energy into the water to improve deep-water detection but doubling the pulse length reduces target discrimination by half thereby compromising resolution and detail. There is no ‘free lunch”\u003c\/p\u003e \u003ch4\u003eWith CHIRP fishfinders\u003c\/h4\u003e \u003cp\u003eThere is no trade-off between pulse length and target resolution. While CHIRP fishfinders may output less peak power than a conventional fishfinder, what really matters is the energy put into the water with each pulse. Wide band,\u003cbr\u003e frequency modulated pulses (130-210 kHz, for example) can be very long in duration and put 10-50 times more energy into the water.\u003cbr\u003e Unsurpassed target detection and resolution is achieved with digital signal processing using pattern matching techniques. With CHIRP fishfinders, the ability to determine the separation between\u003cbr\u003e fish and between fish and bottom can be a matter of inches as compared to several feet with traditional fishfinders. Closely grouped fish can now be shown as distinct targets instead of a single mass and show fish close to the bottom rather than being hidden. It is well known that different fish species and fish sizes return stronger echoes as certain frequencies. With traditional fishfinders operating at fixed frequencies(50k Hz and 200 kHz), fish echoes may be weak or not detected at all. Since CHIRP fishfinders transmit pulses over wide frequency bands, this maximizes fish detection capability \u003c\/p\u003e \u003cdiv id=\"gap-1573876095\" class=\"gap-element clearfix\" style=\"display:block; height:auto;\"\u003e \u003c\/div\u003e \u003cdiv class=\"container section-title-container\"\u003e \u003ch3 class=\"section-title section-title-center\"\u003e \u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e\u003cspan class=\"section-title-main\"\u003eProduct Details\u003c\/span\u003e\u003cb aria-hidden=\"true\"\u003e\u003c\/b\u003e \u003c\/h3\u003e \u003c\/div\u003e \u003cul\u003e \u003cli\u003eExtreme target detail and image resolution at all depths.\u003c\/li\u003e \u003cli\u003ePrecise separation between baitfish and gamefish.\u003c\/li\u003e \u003cli\u003eBottom discrimination of fish laying on the seabed.\u003c\/li\u003e \u003cli\u003eDeep sounding accuracy down to 3,000 m (10,000’).\u003c\/li\u003e \u003cli\u003eAbility to detect targets at greater depths \u0026amp; higher speeds.\u003c\/li\u003e \u003cli\u003eAbility to find targets within the noise (“snow” on the display).\u003c\/li\u003e \u003cli\u003eDesigned for use with the S5100 high performance sounder module.\u003c\/li\u003e \u003c\/ul\u003e","brand":"Navico","offers":[{"title":"Default Title","offer_id":52685107921233,"sku":"000-13773-001","price":5406.08,"currency_code":"EUR","in_stock":true}],"url":"https:\/\/www.sailrace.com\/en-caucasus\/products\/navico-xsonic-r509lhw-broadband-transducer","provider":"SailRACE","version":"1.0","type":"link"}