10MHz panadapter
exercising the true spirit of Open Source

illustrates 40M through 20M
(click for full size image)

50MHz panadapter
exercising the true spirit of Open Source

illustrates 5Mhz through 55Mhz
(click for full size image)

• 4 Quick Recall memories
• Separate Peak Hold data line with hang time selection
• 6 waterfall color selections + auto
• Noise Floor Filter
• Noise Floor average indicator
• Noise Blanker1 with threshold
• Noise Blanker2 with threshold
• Gradient pan background
• Mouse gesture velocity tuning with Inertia control
• S-meter now shows u/m-volts, S units, dBm, and new excursion reference line..
• Day, Date, Time in window border
• Window can be scaled for a beautiful full screen WIDE LCD display. New multi-monitor support.
• Pan Zoom slider - so easy to use
• Pan data line new color(s)
• Pan Anti-Aliasing = smooth display
• improved font for center line Freq
• Spec and S meter update rate slider
• Variable height pan/waterfall window resizes as desired
  
  
• SDRMAX-II Menu Guide (pdf)
  
  
• Introduction to the QS1R (pdf)
  
  

QS1RServer and SDRMAX-II
breakthrough achievements

• separation of DSP server and GUI using sockets architecture = innovation for Internet connectivity and code portability
  
  
• separation of panadapter and audio data USB end-points = innovation that cuts CPU load, eliminates unnecessary computation, and leads to whole new display capabilities
  
  
• panadapter widths selectable from 50Khz to 50Mhz over USB
  
  
• panadapter display is now flat as a board due to special FPGA code enhancement
  
  
• Center noise hump eliminated by careful mathematical algorithm in FPGA
  
  
• Automated DC Offset continuous calulation eliminates manual offset.
  
  
• Inter-operatbility with the popular WinRad software.
  
  

QS1R Highlights

• Frequency Range (BNC LPF Input):
  15 kHz to 55 MHz
  
• Clipping RF Level: +9 dBm (~S9+80db)
  
• Maximum Display Bandwidth: 4 MHz
  
• I/Q Image Rejection: 90+ dB
  
• MDS (500 Hz): -119 dBm @ 14 MHz
  
• IP3: +50 dBm
  
• BDR: 125 dB