Last Update August 31, 2016

Categories

  • C4I, Communication Systems
  • Electrical, Electronics & Electro-optics
  • Mechanical, Electro-mechanical, Hydraulic and Pneumatic components
  • Radar, Sonar, Navigation, Targeting, Surveillance
  • Services (R&D, training, engineering, consultancy, …)
  • Textile, Individual Equipment, Clothing

MESIT defence, s.r.o., for more than 60 years, has been developing and producing highly reliable and durable products for voice and data communications. Since the founding of the company, has been relying on its own development department, which cooperates with leading global companies in the field, such as ROHDE & SCHWARZ.

The company's time and frequency technology is used by CERN labs in Switzerland, NASA (US) and other advanced scientific institutions worldwide.

The company is part of the MESIT group.

History

60 years of experience in radio communications

Over 20 years of specializing in tactical communications.

Until the end of 2015, we have operated on the market under the name of DICOM. Within the unification of the corporate identity of all MESIT Group companies, we changed our name to MESIT defence on January 1, 2016.

DICOM trademark appeared on military and aviation products in 1993. DICOM was established in that year. As a subsidiary of MESIT holding, it continued the successful work of its predecessor, the development department of MESIT that has developed several generations of aircraft radios and radio navigation systems.

In 1994, we launched the serial production of DICOM RF13 transceiver. Over 9,000 portable sets with accessories are still in operation.

In 1998, we finished joint development of R150 transceiver series in collaboration with Rohde&Schwarz. Its parameters rank it among the best products in its category worldwide.

We entered the era of consistent digitalization in military communications and command with the RF20 production program. This system and its accessories are used by military and police forces in 25 countries.

We are currently expanding the portfolio of elements within the DICOM RF40 system and our cooperation in manufacturing and development with ROHDE&SCHWARZ continues as well.

 

 

MESIT defence, s.r.o. - Pictures

Contact info #1

Libor Mikl
+420 572 522 233
Sales Manager
+420 572 522 836
Sokolovska 573, 686 01 Uherske Hradiste, Czech Republic

ASSEMBLY LINE

Placement of printed circuit boards

- placement of through-hole components
- placement of SMD components

•placement of prototype PCB
•placement of PCB for small-series and mid-series production
•placement and repairing of BGA cases
•examination of placed BGA cases on X-RAY unit
•automatic optical inspection of mounted boards
•production of polyester screens and metal stencils


Assembly line

- assembly of electronic device
- assembly of electronic sub-assemblies, including final measuring
- measuring and testing of AF and RF circuits
- seasoning of products from -60 °C to +80 °C

 

DESIGN & CONSULTING SERVICES

Development and production of devices and equipment in the areas of:

  • Radiocommunications
  • Data transmission
  • GPS satellite navigation
  • Audio-frequency technology
  • Power-supplies and converters

Design of printed circuit boards (PCB) for both through-hole and SMT technologies.

Measuring in the area of radio frequency technology.

MACHINING

Turning (conventional)
 
Part diameter: 2 mm to 180 mm, max. length: 400 mm, capacity: 300 hrs./month

Milling
 
Conventional and CNC machines (3 controlled axes), max. dimensions of piece: 650 mm x 300 mm x 170 mm, CNC machine capacity: 500 hrs./month, conventional machine capacity: 300 hrs./month

EIR Wire cutter
 
Max. dimensions of piece: 180 mm x 180 mm x 20 mm capacity: 150 max. hrs./month

Tinsmith and locksmith works

Small locksmith machines –manual press, drilling machines, spot welder and bending machines (max. width 500 mm, thick. 3 mm dural, 1 mm steel).

Capacity: 300 hrs./month

LASER INSCRIPTION

Laser inscription (engraving)
The marking laser marks products made of metal and plastic. The laser features cutting-edge optics providing perfect display, quality and accuracy

Machine parameters:

  • Max.inscription dimensions: 110 mm x 110 mm
  • Dimensions of rotating table: 270 mm x 570 mm
  • Max. height of inscribed part: 175 mm
  • Min. width of line: 20 mm
  • Planar surface inscription (cylindrical with tolerance ± 1 mm)

Materials which can be inscribed:

  • Hardened or non-hardened steels and brass, titanium, bronze, aluminium and gold alloys
  • Plastics: PVC ABS, Polyamid (stickers – engraving and cut out to requested shape)

Leather, wood and glass cannot be used for laser engraving.

Graphical data: Corel Draw 8, Autocad

Inscription examples:

Text  Letter height Material Time of Inscription
Full 4 mm Lacquered Surfaces 20 s
Open face 4 mm Lacquered Surfaces 7 s
Full 5 mm Stainless Steel 150 s
Open face 5 mm Stainless Steel 30 s

RF 40 RADIO SYSTEM

The multiband handheld transceiver is the core of the DICOM®RF40 Thoroughbred system. It operates in the frequency range from 30 to 512 MHz with power of up to 10 W. In addition to the existing RF13 and RF20 waveforms, it brings a brand new WF40 true-MANET waveform. This allows you to use broadband data transmission and simultaneous communication in multiple channels. After connecting the optional Mission Module, which includes a broadband module operating in the L-band and S-band, the RF40 becomes a fully fledged two-channel handheld radio.

Product informational files

RF20 RADIO SYSTEM

The transceivers allow operation in multiple frequency bands (multiband), with multi-purpose use of available modes of operation (multirole + multimode). Functional compatibility with RF13 and RF40 radio systems is guaranteed.

EPM handheld transceivers are designed for communication at the tactical level in all military branches. They are used in particular where high quality communication with lightweight equipment is demanded.

Mobile EPM transceivers are designed to be built into all tracked and wheeled vehicles.

The radio system is complemented with RF1302S and RF13250S transceivers (CCI category), which, in addition to standard analog modes of operation with an open transmission, support special operating modes (SOM) and are certified by the Czech National Security Authority for transmission of classified information up to the Confidential level (NATO CONFIDENTIAL).

Product informational files

RF13 RADIO SYSTEM

RF13 radio system

The system based on the RF13 portable transceiver and the derived mobile sets RF1325 and RF1350 offers fixed frequency radio voice or data communication in VHF band. The RF13 portable transceiver is designed for radio voice or data communication on tactical level in all military branches.

It features voice communication via built-in encryption unit, sending of short encrypted messages, selective communication, selectable output power 5 W/0,2 W, up to 9 channel presets, automatic preset scanning and control of most function from a handset. RF1325 and RF1350 mobile sets are assembled from mutually connected RF13 system components. Suitable for vehicle installations or fixed posts and in situations where additional features are not provided by RF13 set, namely substantially increased range, are required. Power output is 25 W or 50 W. Actual components are specified by the user. All operation features of the RF13 base transceiver can be used during operation.

Product informational files

TIME & FREQUENCY

Precise time and frequency equipment, devices that compare time and frequency via the GPS, Glonass, Galileo or BeiDou navigation systems are used in metrology or in communication and measuring systems.

GTR51 and GTR52 are multisystem/multifrequency GNSS (Global Navigation Satellite System) receivers intended for time and frequency transfer. The receivers support both code and phase measurements using signals of several systems in several frequency channels.

Thanks to large receiver bandwidth and advanced signal processing, even the code measurements provide sub-nanosecond accuracy. The receivers can be directly connected to a local net/internet which allows remote control and output data download and upload.

DEVICE SYSTEMS
GPS GALILEO SBAS GLONASS
GTR51 2065.100.10
2065.100.11  
2065.100.12    
GTR52 2065.100.20  
2065.100.21    
2065.100.22      

Product informational files

DESIGN TECHNOLOGY

For design drafts and subsequent drawings we use Inventor software by AUTODESK Inc. (USA), a 3D CAD system with add-ons that simplify the creation of 2D documentation according to ČSN, DIN, ISO and other standards. The add-ons are supplemented with databases of normalized parts, making it easier for the designer to search in standards and catalogs.

Visualization of 3D models is a great benefit for 3D design. Our customers may view devices in the design stage, learn about the weight, volume and manufacturing process and thus influence the product design as they deem desirable. Data production for NC machining is another great advantage of 3D modelling.

All products used by our company are designed to be able to work with data file formats used throughout the new product design process.

We are able to share our 3D or 2D documentation with our partners using other systems through IGES, VDAFS, STEP and other formats. IGES in particular is becoming a global standard for CAD file sharing.

Printed circuit boards in DICOM are designed using the Protel design system.

Inputs for the PCB design department are schematics drawn on paper or in electronic format. The designer may design the entire PCB on his/her own and the PCB department simply generates output data for the manufacturing process, i.e. the data for the photo plotter, drill and cutter.

Among other important PCB design department outputs are data for surface mount automat and automatic creation of part list from the schematic. Whenever a part is changed on the PCB, the production documentation is updated automatically. PCB design department data are also used in the making of technical documentation (schematic drawings and surface mount drawings).

MACHINING

The company is equipped with mechanical part cutting production technologies – CNC machines by the Swiss company Fehlmann Picomax 50, 54, 55, 80, and a MCU 750 SPEED by Kovosvit MAS drilling/cutting centre with automatic tool replacement. These advanced cutting and drilling centres are used for machine castings and full profiles.

The machine software makes it possible to make products in any shape with 0.01 mm precision and 800 mm x 440 mm x 300 mm maximum dimensions.

Serial and repeated manufacturing makes these units even more efficient. Programs are stored in a PC database, so the number of programs created on CNC machines is virtually unlimited. These programs are uploaded to the machine via conversion software. Both the programming and data transfers can be performed under full operation, while parts are being machined.

Some components and assemblies that require casting, pressing, tool manufacture and certain types of cutting are purchased from suppliers.

LASER INSCRIPTION - ENGRAVING

Laser inscription technology brings high quality, flexibility and effectiveness into production. A computer-controlled process of board marking provides high precision and repeatability.

Laser script is a marking laser devised for the labelling of metal and plastic products. The laser is equipped with a cutting-edge lens, providing perfect image, quality, precision and speed. High performance and productivity are among the main advantages of the system. Computer control and a software setting of the inscription parameters enable complex and unmanned laser marking. The laser is easy to control and requires minimum maintenance.

Laser script provides an easy and fast replacement for outdated technology. Its flexibility provides ample opportunities for cooperation.

Other method of components description is sealed ink cup pad printing provided by the SEALED INK CUP 90 by Tampoprint. It is an advanced, high quality, fully pneumatic machine for single-color printing. It can be used in both automated and manual production lines. Maximum symbol size is 85 mm. It prints any inscriptions and symbols on products of various shapes and surfaces.

SURFACE MOUNTING

DICOM owns an advanced SMT line for the mounting of printed circuit boards using surface mount technology. The line is conceived as a modular workplace that can mount several board types simultaneously using various technological procedures.

The technology is based on mounting SMD components in a solder paste spread on contact pads by dispenser, or screen printing with subsequent re-melting in a reflow oven with full convection or infrared heating. Boards can be mounted on one or both sides by pure or mixed mounting.

The first, manual section of the line consists of semi-automats, a repair and inspection workstation.

Prototypes, small series of boards and components unsuitable for automatic mounting are mounted on semi-automats with a Fritsch, types SM 902 and FP 904 with PC support. The device is programmed through a conversion program directly from the Protel design system.

The repair workstation is equipped with a JBC soldering station, suitable for repairing a wide range of parts using special fixtures for individual case types. For repairing and independent mounting of BGA cases we use  a Pace workstation, type TF 2000, with an optical prism, hot-air tube with replaceable nozzles and temperature/soldering time regulator.

The inspection workstation is equipped with an optical microscope by Mantis, a Mirtec MV-2HL automatic optical inspection device and an XR 3000 table-mounted X-ray device by Pace. 100% inspection of soldered connections on each board after the surface mount is performed on these devices.

MYDATA

MYDATA MY100SX-14 automated pick and place machine

The automat meets all criteria of perfect modularity and flexibility in line with the current trend of mixed production of many small batches – the so-called high-mix manufacturing. MY100SX features up to 176 feeders and the maximum rate of 21.500 components per hour. It is equipped with linear motors for maximum accuracy, guaranteed by continuous machine accuracy calibration.

MYDATA MY15 placement system

The unit mounts components from 01005 up to BGA and µBGA packages. The mounting precision for the entire range of components is 15 µm in 3 sigma. Up to 192 magazines can be put in the automat for a single mounting program. Practical mounting speed is around 4500 components per hour.

TESTING SYSTEM

From the moment of its conception, each product must undergo a given series of test procedures that check its function, operational features and design.

It all begins with the manufacture of a functioning prototype, when the first design and circuitry solution is known. In this stage, the product undergoes a series of laboratory tests. It is classified according to standards into a device group that characterizes its conditions of use, mechanical and climatic impacts. It is used as a background for creation of a testing program, which details technical parameters and testing methods for the product.

The next stage consists in the production of prototypes for factory tests (FT), performed by a testing technician from the TQM department. The purpose is to prove that the product meets all requirements in the technical conditions draft (testing program). This stage also verifies whether the product is functionally reliable and whether the design is suitable for its intended purpose. After the successful finish of factory tests and subsequent modifications, documentation is corrected and prototypes for inspection tests are manufactured.

The inspection test (IT) of prototypes is done by customers and it is supervised by a committee according the to customer-approved program. Any comments and imperfections revealed by the IT must be remedied and modified so that the military test (MT) may begin, done by the customer in the real environment of military units. The results of this test are vital in establishing whether the test series will be manufactured. If MTs pass as satisfactory, test results must be taken into account and documentation for the test series modified accordingly. Subsequent approval proceedings include preparation and signing of technical conditions for the test series.

REPAIR TECHNOLOGIES

Contemporary boards are repaired in substantially different ways than boards mounted with lead-equipped components. This is why several principles must be followed to avoid damaging components, contact pads and the substrate. Workstation configuration partially depends on the type of production, its volume, degree of automation and components used.

Our company manufactures a wide range of products in small series. Our repair workstation was therefore designed to accommodate any faults that occur after remelting for all component types used in the production.

The repair workstation is equipped with a Pace PRC 2000 soldering station, which enables the soldering and unsoldering of components by direct contact with soldering pads or contact-free using a hot-air tool. For mechanical modifying of substrates, the device is equipped with an adjustable cutter. It is also equipped with a dispersion and vacuum unit. For repairing and independent mounting of BGA cases we use a Pace station, type TF 2000, with an optical prism, hot-air tube with replaceable nozzles and temperature/soldering time regulator. For repairing and soldering terminated components, all workstations are equipped with small MBT 250 stations, with flux feeding and an electronic suction system.

PACKING TECHNOLOGY

The last technological operation in the process of product sale to the customer is packing. This seemingly trivial operation may have great influence on the further destiny of the dispatched product, especially fine mechanical and electronic devices.

This is why several years ago DICOM performed a study concerning packing technology for its products, resulting in a unified approach to packing for all of our products in modern boxes, enabling easy transportation by any means of transport (ground or air) to any place, as well as storage in these boxes until the moment of application.

The key element in this system is a cardboard box with internal membrane frames. Their thin elastic foil embraces the product, which "floats" inside the box without any contact with its walls, making it entirely resistant to vibrations and repeated impacts during transport.

This technology is extremely environmentally-friendly (90% recycled paper cardboard , 10% thin PU foil, health risk free, water-based glue), can be used repeatedly, is fully recyclable (RESY label, passed strict testing in Germany and USA). It is so flexible and universal that it can be used to pack various similarly sized products, which we use to the maximum extent in DICOM.

We have unified our packing procedure for all our products. Products delivered to countries with extreme climate (especially high humidity) are furthermore packed in air-tight foil.

MESIT defence, s.r.o.

  • Sokolovska 573, 686 01, Uherske Hradiste, Czech Republic
  • +420 572 522 603
  • +420 572 522 836
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