Specific Area Message Decoder
A programmable digital decoder, such as the WX-200, equipped with SAME is designed to respond to SAME alerts with an audible tone or other warning. The WX-200 can be programmed to respond to specific types of warning and/or those occurring in certain cities, counties, or other geographical areas.

Alert Message Timer
At the conclusion of a SAME alert a digital termination signal is transmitted.  The WX-200 is designed to decode and automatically shut down the transmitter or, if desired, an internal message timer can control the transmission time.

Repeater Interface
The WX-200 is engineered to seamlessly interface with your repeater.  With as few as 4 simple connections, the WX-200 can be set up to provide automatic weather alerts.

During a weather alert, a relay in the WX-200 will disconnect the transmitter from the controller and connect it to the weather receiver. The relay grounds the transmitter PTT line while providing weather audio to modulate the transmitter.

Alert Start Logic Output
The SAME broadcast includes a signal that is decoded by the WX-200 to produce an external alarm, trigger the controller to execute a specialized macro or automatically load a pre-recorded message.

Alert Stop Logic Output
The WX-200 is also able to respond to a length-of-message signal embedded in the SAME alert. Responding to this signal, the WX-200 will automatically reload a NORMAL memory save.

Weather Enable/Disable Input
Receiver alert control signals are available through the rear panel 15 pin connector. The enable input (when grounded) will enable the receiver. By connecting this input to a controller's user function output switch, weather reports on demand are available. The disable input (when grounded) will inhibit all WX-200 weather alerts, a feature to prevent repeater transmissions from interruption.

Voice Synthesizer Alert Message
Embedded in the SAME message is the time period the warning is in effect.  During this time period the built-in voice synthesizer will periodically broadcast the nature of the alert.  The voice synthesizer is programmed with several warnings, including "Tornado Warning", Winter Storm Warning", "Flash Flood Warning among many other .

WX-200 Printed Circuit Board Assembly
The PC contains a state of the art surface mount, dual conversion receiver equipped with a low-noise GaAS MESFET RF amplifier and a single chip MC13135P Motorola receiver. The dip switch allows the built-in frequency synthesizer to select one of 7 NOAA broadcasting stations.  The WX-200 interfaces with the repeater through the DB-15 rear connector while the DB-9 connector allows the RS-232 port connection to interface with a PC serial port. The heart of the WX-200 is the decoder-logic section which consists of the FSK decoder, P80C51RD2 microprocessor, NRAM, and TI voice synthesizer. Since the weather receiver data base is stored in the NRAM, the WX-200 can always be up-dated.

Weather Alert Log
As alerts are received, the WX-200 stores the date, time and type of alert in non-volatile memory. Storage is provided for up to 40 alerts.  The RS-232 port and the WX-200 configuration editor can be used to download the data which can then be saved as a PC text file or printed with the print driver included in the configuration editor.

WX-200 Configuration Editor
The WX-200 Configuration Editor (see below) included with the receiver requires a Windows® 98, Windows 2000, Windows ME®, Windows NT®, or Windows XP® operating system. The configuration editor is used to select the FIP codes, EVENT codes, OPTIONS and timer settings.

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Computer Automation Technology, Inc.
4631 N.W. 31st Avenue, Suite 142
Fort Lauderdale, Florida   33309


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