ASELSAN a defense company based in turkey. has delivered a batch of acoustic torpedo countermeasure jammers and decoys to the Indonesian Navy (TNI-AL), which will be used on its fleet of Nagapasa-class (Improved Chang Bogo-class / Type 209/1400) diesel electric attack submarines.
According to British defense media outlet Jane’s, the TNI-AL ordered the Zoka jammer and decoy system in 2019, and this specific delivery was made on 22 October 2020.
The TNI-AL selected the ASELSAN Zoka jammers and decoys, which can be deployed from the ASELSAN Zargana dispenser system that could deploy up to 24 jammers and decoys in single-shot or salvo modes.
These jammers work by emitting noises that saturate the operating frequencies used by torpedoes, while the decoys simulate acoustic and hydrographic characteristics of the host submarine.
Indonesian state-owned shipbuilder PT PAL will be integrating the system on all three Nagapasa-class submarines with the help of ASELSAN engineers and technicians.
The Nagapasa-class submarines were designed by South Korea’s Daewoo Shipbuilding & Marine Engineering (DSME) and built in cooperation with PT PAL. The TNI-AL currently has 2 submarines of the class in service, while waiting for a third unit scheduled for commissioning soon.
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