Upgraded Radio Altimeter PRV-13BM Ready for Final Tests

In the near future, the 2566 Radioelectronic Armament Repair Plant (2566 REARP) will complete the modernisation of the PRV-13BM mobile radio altimeter. The research and development project named “Modernisation of the PRV-13 Mobile Radio Altimeter” (code name – Vershina-2011) was launched in 2013 at the request of Belspetsvneshtechnika for a foreign customer.
In accordance with the requirements specification, the 2566 REARP was to improve the radio altimeter to the level of the third-generation radar and equip it with advanced componentry. Proceeding from this, the analogue equipment of the PRV-13 was almost completely replaced with digital systems. The altimeter position fixing using a GLONASS/GPS receiver, as well as electronic registration of data on target detection, condition monitoring and equipment diagnostics, and documenting the operator’s performance are introduced into the radar data processing operation. In addition, the sensitivity of the receiving device is increased, and the power of the transmitting device is reduced. Air conditioning and fire alarm systems are installed in the V2 trailer.
Performing work to improve the PRV-13, the 2566 REARP also formed proposals for further deepening of the modernisation. It is expected that this will further increase the reliability of the radio altimeter equipment.
In accordance with the approved design documentation, it is planned to completely get rid of the 400 Hz power supply network in the V1BM trailer, which will reduce the total volume of equipment due to the removal of the frequency converter, as well as replace electric motors of the air-cooling system and swing drive with advanced Belarusian-made small-size electric motors. It is also proposed to completely remove from the V1BM trailer the components of liquid- and air-cooling systems to replace them with advanced air conditioning systems.
In the opinion of the developers, all this will contribute to a more accurate and efficient operation of the radio altimeter, reduce the cost of its operation and provide comfortable conditions for a crew.
Preparations for preliminary testing are being completed to verify the compliance of the improved radio altimeter prototype with the requirements specification. For this purpose, the 2566 REARP carried out work on adjustment and verification of the main parameters. The prototype was transported to the premises of an operator, where it is planned to conduct preliminary and acceptance tests.

Translated by Olga Klevko