It features a Linear Technologies LTC2208 16 bit, 130 MSPS Analog Digital Converter (ADC) and an Altera EP3C16 Cyclone III FPGA. Connectivity to the PC is through a high speed USB 2.0 interface. QS1R covers 15 kHz through 55 MHz in its standard configuration and can be used in undersampling applications to 300+ MHz.

QS1R Specifications:
• - Frequency Range (BNC LPF Input): 15 kHz to 55 MHz
• - Frequency Range (SMA direct input): 15 kHz to 300 MHz
• - Input Impedance: 50 ohms
• - Clipping RF Level: +9 dBm (S9+80db)
• - Maximum Display Bandwidth: 50 MHz
• - ADC Sampling Clock: 125 MHz (1 - 130 MHz with external encode input)
• - I/Q Image Rejection: 90+ dB
• - MDS (500 Hz): -122 dBm @ 14 MHz
• - BDR: 125 dB
• - Voltage: 5 - 6 VDC, 2A fused, reverse polarity protected
• - Current Draw: 500 mA (typ.)
• - Connectors: BNC (RF IN LPF), SMA (RF IN, EXT ENCODE CLOCK), USB Type "B", 2.5 mm DC Power
• - LEDS: Power, Clipping, Debug (internal)
• - Dimensions: 160 x 100 mm (3.299" x 3.940") (board size)

The QS1R VERB is OPEN SOURCE. QS1R is not a black-box design. The firmware, software, and FPGA HDL are all GPL open sourced. You can view, change, improve, and experiment with what is inside. Since the majority of the VERB's functionality is within the FPGA, a new, updated radio is only a download away.

Yahoo Group: http://groups.yahoo.com/group/qs1r/