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Passive Radar Development Project Passive Broadcast Detection System (PYAS)


The Passive Broadcast Detection System (PYAS) Project aims to use a distributed and synchronized structure consisting of 4 sensors in order to detect signals broadcast from target platforms, generate 3D location data, track and diagnose. Since the project does not broadcast in the environment, it has the ability to perform precise target positioning without being noticed and can work effectively at long ranges. It can also perform ELINT (Electronic Intelligence) missions thanks to its ability to perform detailed signal analysis. The main features of the project are as follows: 1) Passive detection in wide frequency band, 2) Sensitive time synchronization (GPS and PTP), 3) 3D positioning with Time Difference of Arrival (TDOA) method, 3) Target tracking, 4) Impact radar, SIF/IFF transponder, TACAN/DME interrogator, jammer and Link16 signal detection, 5) Making detailed signal parameters (PA, PW, PF, PRI, Scan Type etc.) estimation, 6) Remote or local control, 7) Ability to produce output in AWCIES/ASTERIX formats.

The PIAS Project is an important step towards the development and use of high-sensitivity passive sensing systems. The project provides important information by detecting broadcasts of target platforms, generating location information and analyzing signals.

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MILSEC 4 - Secure IP Terminal


While the MİLSEC-4 terminal offers an up-to-date solution for next-generation secure communication (voice, data and video) in IP networks, it provides an uninterrupted communication service by maintaining the compatibility of secure voice communication in PSTN networks with PSTN secure phones in use.

Configuration, surveillance and software update processes of MILSEC-4 terminals are carried out securely remotely using the Security Management Center (GYM). MİLSEC-4 terminal is capable of IP Network Key Loading (IPAAY) through secure communication with GYM without the need for an additional device.

MİLSEC-4 terminals are interoperable with MİLSEC-1A and MİLSEC-2 phones and offer the opportunity to replace MİLSEC-1A and MİLSEC-2 phones without interruption in the gradual transformation of PSTN networks to next generation IP networks.


  • End-to-end secure voice communication in PSTN networks
  • End-to-end secure voice, image and data transmission in IP networks
  • NATO SCIP compliance on IP networks
  • Compatibility with commercial SIP products
  • Interoperability with MILSEC1A and MILSEC2 secure phones
  • National and AES crypto algorithms
  • Remote software update
  • Easy operation with touch screen

It is subject to the sales license to be given by the Ministry of National Defense.