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Confirmed: Turkey to Modernize Pakistan’s Attack Submarine Fleet

There have been no details released afaik, so hard to tell.

It would be smart to stay close to either A-90B equipment (e.g. DSCN/Thales SUBTICS, which processes signals from the submarine's sensors, determines the tactical situation by track association, fusion, synthesis, trajectory plotting and management and handles all weapon command and control functions; Thales DR-3000U radar warning receiver, or Thales Underwater Systems - formerly Thomson Marconi Sonar - TSM 223 sonar suite, which includes bow-mounted sonar and towed sonar arrays, SAGEM periscopes and navigation system and Thales I-band navigation radar. Or what ever the S-20 boats will be delivered with (and that may include non-Chinese systems).

However, the P75I Scorpene Class also features the SUBTICS integrated combat system to enable operation and control of all onboard sensors, weaponry and radars from multifunction common consoles. The onboard S-CUBE integrated and modular submarine sonar suite, developed by Thales, offers increased safety against a wide variety of threats in deep or coastal waters. It comprises sonar arrays including bow, stern, planar flank, intercept, distributed, towed and active, mine and obstacle avoidance sonar, as well as self noise-monitoring hydrophones. The submarine is also equipped with Sagem surveillance and radars.
Details have started trickling. As per Jane's, Airbus DS got a contract to supply the SERO 250 periscope and OMS 200 optronic mast for the STM-led Agosta 90B upgrade.
 
Details have started trickling. As per Jane's, Airbus DS got a contract to supply the SERO 250 periscope and OMS 200 optronic mast for the STM-led Agosta 90B upgrade.

Please compare current and proposed systems capabilities and what new systems will add?
 
Details have started trickling. As per Jane's, Airbus DS got a contract to supply the SERO 250 periscope and OMS 200 optronic mast for the STM-led Agosta 90B upgrade.

That's interesting, Aselsan currently produces IR camera for Zeiss optronic masts

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It seems however that ESM mast will be Aselsan, perhaps LPI radar too ?

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http://www.janes.com/article/65263/submarine-esm-success-indodef16-d3

Aselsan, a Turkish Armed Forces Foundation company, is continuing to develop its capability in submarine electronic warfare (EW) on the back of recent contracts for the Turkish Naval Forces Command and export.

The company’s first-generation ARES-2NS submarine electronic support measures (ESM) is already in service on board two modernised Ay-class Type 209/1200 submarines, and has been specified for the six Type 214 boats being procured under the New Type Submarine Project.

Aselsan (Hall A, Stand 083) has subsequently developed the second-generation ARES-2SC ESM system. Covering the 2-18GHz frequency band, the ARES-2SC ESM system intercepts, detects and identifies radar signals, and provides high direction-finding accuracy.

As well as a dedicated ESM mast antenna, the ARES-2SC system features a separate omnidirectional radar warning receiver (RWR) antenna designed for installation on periscopes.

Company officials told the Show Daily that Aselsan is now developing a third-generation submarine EW system that will combine the functions of radar ESM and communications ESM in a single antenna. It is expected that this solution will be offered for the forthcoming modernisation of the Turkish Naval Forces’ four Preveze-class Type 209/1400s.

In addition, Aselsan has recently been selected to provide the ARES-2SC system as part of the upgrade of the Pakistan Navy’s Agosta 90B submarines. In this case, it will provide the main ESM to STM (as prime contractor), while it will separately supply the periscope-mounted RWR antenna to Airbus DS Optronics for mounting on a new search periscope.
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I believe this is Second Generation ESM chosen for Agosta 90B modernization
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