BrettP Posted December 19, 2006 Share Posted December 19, 2006 G'day raiders, I have been searching for a new fish finder and have settled (i think) on the Garmin FF340c. Does anybody have this unit and are you happy with it. Secondly, it comes with either dual beam or dual frequency. What is the difference. I mostly fish the harbour and Hawkesbury and occasionally head offshore. Thanks Brett Link to comment Share on other sites More sharing options...
Guest Big-Banana Posted December 19, 2006 Share Posted December 19, 2006 Dual Beam? Most sounders have frequencies of 50khz and 200khz each has different cone angles. I've always got mine set to dual but when in the shallow stuff I switch to 50. Link to comment Share on other sites More sharing options...
Guest Big-Banana Posted December 19, 2006 Share Posted December 19, 2006 The shallow stuff needs the 200 Anthony ,the 50 is for deep water Cheers Stewy The old man and I had an argument about this! He was right Cheers Stewy. Link to comment Share on other sites More sharing options...
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