‰ NOW 40 WPM ‰ TEXT IS FROM JANUARY 2014 QST PAGE 38‰ BUTTON. THE FRAMES/SEC INDICATOR WILL GIVE AN INDICATION OF HOW MANY ADS B SIGNALS ARE BEING RECEIVED SEE FIGURE 10. VIRTUAL RADAR SERVER VIRTUAL RADAR SERVER IS AN OPEN SOURCE .NET APPLICATION THAT RUNS A LOCAL WEB SERVER. YOU CAN CONNECT TO THE WEB SERVER WITH ANY MODERN BROWSER AND SEE THE POSITIONS OF AIRCRAFT VIA GOOGLE MAPS, GENERATE REPORTS, AND INTEGRATE OTHER USEFUL INFORMATION. YOUR PC MUST BE RUNNING WINDOWS XP SP2 OR NEWER, EITHER 32 BIT OR 64 BIT, ALONG WITH MICR EXPOSE 1 1/2 INCHES OF CENTER CONDUCTOR FROM THE OTHER END OF EACH OF THE SEVEN SHORT PIECES. YOU SHOULD END UP WITH SEVEN PIECES OF RG 6/U WITH 1 INCH OF THE CENTER CONDUCTOR PROTRUDING FROM ONE END, AND 1 1/2 INCHES FROM THE OTHER SEE FIGURE 3. INSPECT THE CUT ENDS AND USE THE TIP OF THE KNIFE BLADE TO CLEAR ANY STRANDS OF WIRE OR FOIL SHIELD FROM THE INSULATION AROUND THE CENTER CONDUCTOR. EXPOSE 4 1/2 INCHES OF THE CENTER CONDUCTOR FROM THE OTHER END OF THE 10 INCH PIECE THIS WILL ACT AS A VERTICAL WHIP AT THE TOP OF THE ANTENNA. IT WILL BE EASIER TO ASSEMBLE THE ANTENNA IF THE VINYL JACKETS ARE MADE MORE PLIABLE BY HEATING THEM. PLACE THE EIGHT PIECES ON A TRAY IN YOUR OVEN AT ITS LOWEST SETTING 1500 F MAXIMUM FOR 10 TO 15 MINUTES. ALTERNATIVELY, USE A HEAT GUN OR HAIR DRYER TO SOFTEN THE OUTER COAX COVERING. ED. THE COLLINEAR ELEMENTS ARE ASSEMBLED BY INSERTING THE EXPOSED CENTER CONDUCTOR FROM ONE PIECE BETWEEN THE OUTER JACKET AND ALUMINUM FOIL OF THE NEXT PIECE, IN AN OFFSET CHAIN AS SHOWN IN FIGURE 4. PINCH THE OUTER JACKET WITH YOUR FINGERS TO CREATE A SMALL GAP, AND THEN INSERT THE LONGER WIRE BETWEEN THE JACKET AND FOIL USING A GENTLE RECEPTION. MANY ONLINE SELLERS EXIST, JUST SEARCH FOR R820T AND RTL2832 TO BE SURE YOU GET THE RIGHT KIND. SELLING PRICES HAVE DROPPED BELOW 15, DEPENDING ON WHETHER YOU CHOOSE A US OR CHINA BASED SELLER. THE DVB T DONGLES NOW USE MCX CONNECTORS, SO YOULL NEED EITHER AN ADAPTER OR TO CUT THE SUPPLIED ANTENNA CABLE AND SPLICE ON A NEW ANTENNA CONNECTOR OF YOUR CHOICE. RG 6/U COAXIAL CABLE ENOUGH TO REACH FROM YOUR PC TO THE ANTENNA MOUNTING LOCATION, PLUS AN EXTRA 5 FEET. THREE TYPE F MALE CONNECTORS FOR RG 6/U. ONE TYPE F TYPE 90 ELBOW ADAPTER. A 5 FOOT LENGTH OF 3/4 INCH PVC PIPE. ONE 3/4 INCH PVC PIPE CAP. ONE 3/4 PVC PIPE T. ONE 3/4 INCH PVC PIPE PLUG. TOOLS TAPE MEASURE, ELECTRICAL TAPE, UTILITY KNIFE, AND A HACKSAW. COAXIAL COLLINEAR ANTENNA THIS ANTENNA PROVIDES ENOUGH GAIN TO HEAR PLANE TRANSMISSIONS FROM 100 MILES OR MORE AWAY, YET COSTS ONLY A FEW DOLLARS AND TAKES LESS THAN AN HOUR TO MAKE USING THE FOLLOWING PROCEDURE CUT SEVEN PIECES OF RG 6/U COAX 7 INCHES LONG, AND ONE PIECE 10 INCHES LONG. THEN, EXPOSE 1 INCH OF THE CENTER CONDUCTOR FROM ONE END OF ALL EIGHT COAX PIECES BY ROLLING THE COAX AGAINST THE BLADE OF A SHARP UTILITY KNIFE TO CUT THROUGH THE VINYL OUTER JACKET, FOIL SHIELD, AND FOAM INSULATION. TAKE CARE NOT TO PRESS HARD ENOUGH TO CUT OR NICK THE CENTER CONDUCTOR. MAKE SURE THE END IS CLEAR OF STRAY SHIELD WIRES OR FOIL. ‰ END OF 40 WPM TEXT ‰ QST DE W1AW ƒ