03-11-2015, 04:30 PM
If one is really set on having 83kHz I "believe" that the 859 is capable of it but the transducer that comes with that unit does not have those crystals in it. I have read recently that the older 859/959 units were capable of both 200/83 and 200/455 and it just mattered what transducer one was using. I don't know about current models. Maybe yours isn't capable of 83kHz no matter what. I gave up searching for it.
455kHz is a tighter beam yet than 200kHz. I believe the reason why the 859/959 units come this way verse 83/200 is due to their specific design. That is a unit with very defined Down Imaging characteristics. They put eveything into that unit for that specific reason.
I too rely specifically on 200kHz but 83kHz has it's place if one has it. Shallow water coverage, depending on ones speed if one was trolling deep and using downriggers 83kHz might be the only beam too see the cannon balls, etc
I know my dad way back when use to reach back and angle his transducer so he could see his cannon balls. I don't remember what type of sonars/units he had back then. Something he told me about maaaaany years later once away from the nest, own boat, etc.
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455kHz is a tighter beam yet than 200kHz. I believe the reason why the 859/959 units come this way verse 83/200 is due to their specific design. That is a unit with very defined Down Imaging characteristics. They put eveything into that unit for that specific reason.
I too rely specifically on 200kHz but 83kHz has it's place if one has it. Shallow water coverage, depending on ones speed if one was trolling deep and using downriggers 83kHz might be the only beam too see the cannon balls, etc
I know my dad way back when use to reach back and angle his transducer so he could see his cannon balls. I don't remember what type of sonars/units he had back then. Something he told me about maaaaany years later once away from the nest, own boat, etc.
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