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Original question:

Fish Finder system using AFE5809

Fish finder 50 meter under water

ashok b
Intellectual 440 points
Other Parts Discussed in Thread: AFE5809, PGA460

Hi All,
I need to be able to measure distance underwater between points with a distance of 50 meter . So I'm thinking something as simple as a sonar should work. One sends a ping the other one receives it and replies back. Is this approach feasible? Can anybody recommend sonars I can use?
OR
any other solution.Please suggest

Thanks,
Ashok

  • 0
    TI__Expert 7599 points

    Hello Ashok,

    I am redirecting your thread to right contact to help you with AFE5809. Thanks for your patience. 

  • 0 in reply to Arjun_Prakash
    Intellectual 440 points

    Hi Arjun,

    Thanks for the reply.

    We are looking for low cost solution and how about PGA460 can we use this part ?

    Device 1 we need 8 TX Channels and one RX channel this is main module which floating on water surface.(Suggest me any low cost chip for device 1 )

    Device 2  This device under the water  1 TX channel and 1 RX channel  for this can we use PGA460 ?

      both the devices communicate with  each other.

    Suggest me any low cost solution.

    Thanks,

    Ashok

  • 0 in reply to ashok b
    TI__Expert 7599 points

    Hi Ashok,

    The PGA460 is really meant for Air coupled applications and not meant for underwater or liquid coupled applications. For underwater/Liquid applications we would need a device with higher frequency and currently that is not being supported by PGA460. Your best device for sonar applications now would be the AFE5809. 

    Thanks.