DISHANI

General Description
Product Specifications
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Point of Contact for further follow up
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Product Manufacturer
Bharat Dynamics Limited (BDL)
Designing/Manufacturing agency
DRDO
Product Description

DISHANI is a directional Sonobuoy and an expendable air-deployed ASW sensor system in a compact, self-contained package comprising of acoustic sensors, electronics, and mechanical assemblies and parachute. It is meant to be dropped from an aircraft (fixed / rotary wing) and after entering the water separate into an
underwater unit and a surface radio transmitter which then relay the acoustic signals to the aircraft

Product Specification
Basic Information
Deployment platform - Helicopter / Fixed Wing Aircraft
Sonobuoy dimensions - Standard NATO size 'A’
Launch altitude - 50-1000 m (for helicopter) | 100 – 8000 m (for fixed wing aircraft)
Launch speed - 0-150 Knots (Helicopter lAS) | 150 – 370 Knots (Fixed wing IAS)
Acoustic Sensor Selections - Shallow Omni Hydrophone (15m) | Deep Omni Hydrophone (up to 300 m) or Directional Sensor (up to 300 m)
Operating depth - Preset selectable four depth settings (30m, 60m, 120m, 300m)
Operating life - Selectable (0.5, 1, 2, 4, 8) hours
Electronic Feature Select (EFS) - Operating Depth | Scuttle | RF Channel, Operating Life | Acoustic Sensor | Pre amplifier Gain
Command Feature Select (CFS) - RF Channel | Operating Life | Acoustic Sensor | Pre amplifier Gain | Scuttle
Command Feature Select (CFS) - UHF – single channel at 291.4 MHz
Sonobuoy Selection - Individual addressing (24 bit)
Sonobuoy Data telemetry band - VHF (136.000 to 173.500 MHz) 100 channels selectable
Sonobuoy Location Information - Equipped with GPS for own location / reconfigurable to NAVIC in future
Weight - 9 Kg Approx.
Shelf Life - 5 years in sealed container
BDL, GM
Bussiness Development
Contact : bdbdl[at]bdl-india[dot]in