‰ NOW 30 WPM ‰ TEXT IS FROM JULY 2012 QST PAGE 38‰ RADIOS YAESU FT 817, 857, 897 AS WELL AS ICOM IC 703, 706 AND 7000 TRANSCEIVERS HAVE BEEN TESTED TO DATE. THE SOFTWARE IS DESIGNED TO SUPPORT UP TO 47 DIFFERENT MODELS AND MEETS THE SPECIFICATIONS IN TABLE 1. TO PROVIDE A SOFTWARE PACKAGE THAT CAN BE USED BY DEVELOPERS. MDSR SOFTWARE RELEASE V2R4 WILL HAVE AN EXTERNAL FREQUENCY COUNTER INPUT FOR RADIOS THAT DO NOT HAVE A COMPUTER AIDED TRANSCEIVER CAT INTERFACE. TO UPGRADE AN OLDER ANALOG RADIO TO SDR CAPABILITY AT LOW COST. TO USE SOFTWARE FOR THE DEMODULATION AND MODULATION OF USB, LSB AND CW AM AND FM PLANNED FOR THE FUTURE WITH A STANDARD SOUNDCARD SERVING AS THE ANALOG TO DIGITAL CONVERTER. TO WRITE SOFTWARE THAT RUNS ON WINDOWS BASED PLATFORMS WINDOWS 2000, XP, VISTA AND WINDOWS 7 AND CAN BE QUICKLY INSTALLED AND CONFIGURED BY ANY AMATEUR. TO ENSURE THAT THE REQUIRED HARDWARE IS SIMPLE AND EASILY REPRODUCIBLE, AND TO REQUIRE A MINIMAL AMOUNT OF MEASUREMENT EQUIPMENT THE MDSR SOFTWARE IS USED AS THE MEASUREMENT TOOL FOR SETUP. CREATION OF 12 KHZ LOW INTERMEDIATE FREQUENCY LIF RECEIVE SYSTEM HOW TO EXTRACT THE 455 KHZ IF SIGNAL FROM A RADIO SINCE THE EARLY DAYS OF SUPERHETS, 455 KHZ HAS ‰ END OF 30 WPM TEXT ‰ QST DE W1AW ƒ