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OF SPECTRUM AT A TIME.  THE RSPDX SHIPPING BOX INCLUDES ONLY THE RECEIVER.
YOU WILL HAVE TO PROVIDE A USB CABLE TO CONNECT IT TO YOUR COMPUTER, AS
WELL AS DOWNLOAD THE SDRUNO SOFTWARE AND DOCUMENTATION FROM THE SDRPLAY
WEBSITE.  THE RSPDX COMES WITH A METAL ENCLOSURE.  THE UNIT IS HEAVY FOR
ITS SIZE, AND IT WILL STAY STILL ON YOUR DESK.  THERE ARE THREE ANTENNA
INPUTS, AN EXTERNAL REFERENCE CLOCK INPUT, AND A USB CONNECTOR FOR THE
COMPUTER CONNECTION.  UNLIKE ITS PREDECESSOR, THE RSP2, THE RSPDX HAS NO
EXTERNAL CLOCK OUTPUT PORT.  IF YOU NEED A REFERENCE CLOCK OUTPUT, YOU WILL
HAVE TO MOVE UP TO THE TOP END SDRPLAY DEVICE, THE RSPDUO.  THE RSPDX FRONT
END HAS BEEN REDESIGNED FOR BETTER PERFORMANCE AT HF AND LOWER FREQUENCIES.
THE PRESELECTOR FILTERS AND NOTCH FILTER HAVE BEEN IMPROVED, ATTENUATOR
STEPS HAVE BEEN ADDED, AND THERES A NEW HDR HIGH DYNAMIC RANGE MODE WHEN
USED WITH THE COMPANION SDRUNO SOFTWARE.  COMPARED TO THE RSP2PRO, THE ARRL
LAB MEASUREMENTS SHOW SIGNIFICANTLY BETTER SENSITIVITY AT 630 AND 2200
METERS, AS WELL AS AN APPROXIMATELY 15 DB IMPROVEMENT IN THIRD ORDER IMD
DYNAMIC RANGE AT HF WITH THE RSPDX AGC LEVEL ADJUSTED FOR BEST DYNAMIC
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