Summary of Contents for Computer Automation Technology WX-200
- Page 1 WX-200 Digital Weather Receiver Computer Automation Technology, Inc 4631 N.W. 31st Avenue, Suite 142 Fort Lauderdale, Florida 33309 Phone: (954) 978-6171 Fax: (561) 488-2894 Internet: http://www.catauto.com...
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Page 2: Table Of Contents
Table of Contents Chapter Page Introduction and Specifications Interfacing to Repeater Configuration Programming Drawings Schematics Parts List REVISED 11/23/04 (V1.01) -
Page 3: Introduction And Specifications
Weather Alert Log As alerts are received the WX-200 stores the date, time and type of alert in non- volatile memory. Storage space is provided for forty alerts. Use the RS-232 port and the WX-200 configuration program to down load the data. -
Page 4: Specifications
(1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. User changes or modifications to the WX-200 not expressly approved by Computer Automation Technology could void the user's authority to operate the equipment. -
Page 5: Interfacing To Repeater
CAT-1000B are connected to the repeater's transmitter through the normally closed contacts of the double pole double throw relay located in the WX-200. Set the power switch to on, the WX-200 will announce the firmware version. 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. - Page 6 WX-200. Set the power switch to on, the WX- 200 will announce the firmware version. 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.
- Page 7 Plug a set of stereo headphones into J1 to monitor the NOAA weather station. Computer Interface J2 Connect your computer’s serial port to the WX-200 receiver at connector J1. Use Radio Shack shielded RS-232 cable (cat No. 26-117B) or equivalent. This cable is a DB-9 male to DB-9 female with pins 2-2 and 3-3.
- Page 8 Antenna Interface J5 Connect a VHF antenna to the BNC connector J5. If the WX-200 is located in the fringe area of the NOAA transmitter an external antenna is recommended. Do not locate the antenna near any transmitting antennas. WX-200 Controls Test Switch [SW1] Press [SW1] to initiate a test sequence of the logic functions of the WX-200.
- Page 9 WX-200 Audio Adjustments Transmit audio from the controller has a direct connection to the transmitter through the WX-200. There is no need to readjust transmitter deviation. Press the MONITOR switch [SW3] on the rear panel. Monitor the transmitter output. Adjust the LINE LEVEL audio control R25 for the desired level of NOAA weather station audio.
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Page 10: Configuration Programming
Your computer will determine which port is connected to the WX-200. The time of the alert is sent in the digital packet as GMT time. Select your time zone so the configuration program can calculate your local time. Check the box to automatically adjust for daylight savings time. - Page 11 Federal Information Processing Codes From the WX-200 Digital Weather Receiver window click the [U.S. FLAG] button to display the [WX- 200 FIPS Codes] window. Click the [SELECT STATE / TRANSMITTER CITY] button to display the [WX- 200 STATE / TRANSMITTER LOCATION] window.
- Page 12 The WX-200 FIPS Codes window will display the counties serviced by the selected transmitter. Select the desired county or counties by checking the boxes along the left column. Up to 24 counties can be selected. When the selections are complete, click [OK] to return to the WX-200 FIPS Code window. Figure 3-5...
- Page 13 Select the desired options and click [OK]. Figure 3-8 Override Options If the accept all FIP and Event Codes boxes are checked, the WX-200 will respond to all alerts issued by the weather station. Operation is similar to a receiver with 1050Hz decoder only.
- Page 14 When the alert message is finished the weather station sends a termination data packet. Upon recipe of this packet the WX-200 will turn off the speaker, line audio and repeater transmitter. The voice synthesizer will continue to announce the alert until the time period has expired. Select the desired voice alert options and click OK.
- Page 15 Call Letter Identification Use the WX-200 voice synthesizer to identify the transmitter at the end of an alert and during the periodic voice weather announcements. Enter your station identification in the Call Letter Box. Valid characters are A-Z and 0-9. Up to fifteen (15) characters can be entered. Additional check boxes are provided to add the words “This is”, “Transmitter”...
- Page 16 The voice synthesizer will also announce the station ID if programmed and enabled. Reset WX-200 Memory Remove +12VDC power from the WX-200 receiver. Set dipswitch #4 to the ON position. The WX-200 will reset and the voice synthesizer will say: “WX-200 VERSION 1.00 RESET DATA LOAD COMPLETE”.
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Page 17: Drawings
Chapter 4 - Drawings Figure 4-1... -
Page 18: Schematics
Chapter 5 - Schematics WX-200 Schematic Sheet 1 of 3 WX-200 Schematic Sheet 2 of 3 WX-200 Schematic Sheet 3 of 3... - Page 19 Chapter 6 - Part List Bead Inductor P9810 Capacitor 470pf Capacitor .001uf C24,C32,C33 Capacitor .0015uf Capacitor .0047uf Capacitor .0082uf Capacitor .015uf C30,C34,C35 Capacitor .027uf Film Cap Capacitor .1uf 50V C8,C10,C11,C12,C16,C18,C20,C25 C36,C38,C39,C52,C53,C72,C79,C80 Capacitor 4.7uf 16V Capacitor 10uf 16V C4,C5,C6,C9,C29,C31,C37 Capacitor 470uf 25V C7,C81 Capacitor (SM) 0.5pf...
- Page 20 Crystal 16MHz Diode 1N4148 CR4,CR5,CR6 Diode 1.5KE20A CR14 Filter 10.7 MHz FL1,FL2 Filter 455 KHz Fuse 0.5 Amp Header I.C. 25C320 I.C. 74HC14 I.C. 74HC157 I.C. 74HC4053 I.C. 78L05 U16,U20 I.C. LM340-T5.0 I.C. LM348M I.C. LM1458M I.C. MC13135 I.C. MC145170-2 I.C.
- Page 21 Resistor R8,R13,R14,R27 Resistor 100K Resistor 470K Resistor 510K Resistor Resistor 4.7K 1/8W Resistor 10K 1/8W R36,R43,R44,R46,R48 Resistor 3.9K 1/8W Resistor 68K 1/8W Resistor 100 1/8W R32,R33,R47 Resistor 150 1/8W R40,R42 Resistor 39 1/8W Resistor 470K 1/8W Switch 4 Position Dip Switch Push Button SW1,SW2,SW3...
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