TESLA BLATNÁ, a.s.

Public alert systems UEAJ are used for providing sound to cities and municipalities, to the plants and locations with potentially dangerous materials, open spaces, sport arenas and halls and for build up of large warning systems for informing public in the case of emergency situations.

Basic characteristic:
• voice output with excellent voice presence
• acoustics unit with circular or asymmetrical characteristic for complex solutions
• flexible interfacing to numerous communication channels - DTMF, digital and/or analog radio, GSM,.. according to customer specification
• operation centers control panels
• easy link to municipal information systems
• remote diagnostics
• battery back up

Function:
• 4 warning signals ("sirens"), sw generated
• source of voice messages:
• local mic

• digitally stored voice messages (120 seconds)

• external sources - CD, MC. FM receiver

• control radio channel

Control:
• 2 basic modes of operation:
• local: Equipments are protected against access by unauthorized personal by 13 bit digital code (hw key)
• remote control by radio links or other communication channels. (POCSAG and/or analog radio with bi-directional data transmission modem is an example)

Construction:

Basically 2 units - electronic unit rack and acoustical unit constructed for outdoor installation. Electronic unit contains power supply with back up, control circuitry and power output modules. Modular solution for easy service of the system. Acoustical unit contains acoustical drivers attached on supporting construction. Complex solutions according to specific situation of the customer is possible.

You can download electronic catalogs in Excel and PDF format.

Do you need a PDF viewer? Download Adobe Acrobat.

The company can provide our customers with the complete supply chain in field of customized electronic modules - development - design - production.

The practical expreince include the following projects:
• ferrite circulators
• battery chargers and power supplies
• EMC suppression modules
• Microwave modules
• Electronic modules for motor soft start, automatisation, telecommunication and automotive industry

Do you need a PDF viewer? Download Adobe Acrobat.

The ferrite circulators (CKx types) has the temperature compensated drift of the operating frequency. The 3-port circulators works as an isolator between ports 1 and 2, port 3 is connected to matched load impedance. The ports are realised by connectors with 50 Ω impedance (see table). The assortment of ferrite circulators CKx has been enlarged with one type circulator (CMX) as well with one type isocirculator (IMX) for frequency range X.

You can download electronic catalogs in Excel and PDF format.

Do you need a PDF viewer? Download Adobe Acrobat.