Federal Information Processing System Codes
The National Weather Service divides the United States into states and counties. Each county is assigned a six digit county code. The first digit identifies the county subdivision, the next two digits identify the state and the last three digits identify the county.

Weather Alert Log
As alerts are received the WD-100 stores the date, time and type of alert in non- volatile memory. Storage space is provided for ten alerts. Use the RS-232 port on the WD-100 to down load the data.

Weather Enable Input
When this input is grounded the WD-100 will activate the weather receiver. When connected to a controller's user function output switch, weather reports on demand are available.

Weather Disable Input
When this input is grounded the WD-100 will not respond to weather alerts issued by the NOAA weather station. Once a "Sky Warn Net" is activated, it may be desirable to stop any additional alerts.

Alert Start Logic Output
An ALERT START output provides a TTL logic high two second pulse when a weather alert is received. This output can be used to set off an external alarm or trigger the controller to execute a macro or load a "SEVERE WEATHER ALERT" memory save.

Alert Stop Logic Output
Included in the digital packet is the length of the severe weather alert. The WD-100 stores this information and generates a stop logic output when the time period expires. An ALERT STOP output provides a TTL logic high for one second. This output can be used to trigger the controller to reload the "NORMAL" memory save.

Alert Message Timer Selection
At the conclusion of an alert message the weather station send a digital termination packet. The WD-100 decodes this packet and turns the transmitter off. If the weather station fails to send the termination packet the alert message timer will take over.

Test Switch
Press the TEST switch to initiate a test sequence of the logic functions of the WD-100. The WX Alert Start output will pulse. The relay will switch connecting the weather receiver audio to the TX Audio Output for thirty seconds followed by a WX Alert Stop output pulse.

Time-out Timer
A termination data packet is sent at the end of the alert message. Should the weather station fail to send the termination data packet this timer will limit the alert transmission time.

Relay Timer
When the digital packet is decoded the relay disconnects the transmitter from the controller. If you want to use the features of your repeater's controller to send paging tones, alert tones or a custom voice message announcement this disconnect must be delayed. Use this feature to select the delay.

WD-100 Repeater Interface
Connect a 162MHz receiver to the WD-100, controller and repeater. PTT and transmit audio from the controller are connected to the repeater's transmitter through the normally closed contacts of a double pole double throw relay located on the WD-100 module. When a weather alert is received, the relay will switch the weather alert audio to the TX audio input and provide a PTT signal to key the transmitter.

EAS Event (NWR-SAME) Codes

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