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VH165 & VH180 Omni-directional Hydrophones (69 & 180 kHz)



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vr100-boat-guyThe VH165 and VH180 are omni-directional hydrophones for use with the VR100 acoustic receiver for active tracking of VEMCO acoustic transmitters on passing fish or equipment.

 The VH165 operates between 50 kHz to 85 kHz and the VH180 operates at the 180 kHz. The VH165 is encased in a black 16 mm diameter epoxy tube at a length of 100 mm and the VH180 is encased in a green 16 mm diameter epoxy tube at a length of 100 mm.

For more information, see the VH165 and VH180 Omni-directional Hydrophones Datasheet.


  1. Attach hydrophone to a weighted rope to counteract buoyancy and put hydrophone to depth. Do not put strain on hydrophone cable! Amount of weight needed depends on flow rate in the area.
  2. Turn off boat motor and depth sounder to reduce acoustic interface.



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