The PRM 4720b lightweight palm-held Receiver/ Transmitter manufactured by HAI under license from RACAL operates within the tactical VHF band 30-88MHz. The electronically tuned-no mechanical moving parts-REC/TRX circuits improve the device's reliability and reduce its weight. Employs an advanced microelectronic frequency synthesizer by one thumbwheel switch. Utilizes LSI and functional modularity. State of the art SMD technology.

Artillery Fire Control System "PYTHAGORAS"

PYTHAGORAS is a microprocessor based artillery computer consisting of the main fire control unit (FPU) and six remote gun display terminals (GDT). 

The system performs fire control at battery level and features easy and interactive operation, multiple preprogrammed menus and on-line transmission of firing data. Further development of PYTHAGORAS includes full backwards system compatibility, single board computer architecture, multiple calipers and I/O serial communication port.

Manufactured by HAI under license from Hirschmann providing a UHF/VHF output power of 2W in bands IV/V and 5W in band III,can be increased to 5W in bands IV/V and 100W in band III.100W and 1KW transposers can be built by combining additional amplifier stages. Low power TVM consists of a 19-inch wide rack containing five plug-ins allowing easy maintenance. Features group delay corrections, meeting the special specifications of most countries.

All submodules tuned to 50 OHMS for best VSWR are exchangeable and connectable without retuning. Built to meet high reliability standards.

Optronics