看着流口水啊
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FDM-DUO is a SDR tranceiver that offers the possibility to operate STand-alone like traditional radio or attached to a Personal Computer discovering the possibilites offered by the SDR technologies.
Stand-alone Specifications updated 6 June 2014
RX:
Freqency range: 10KHz - 54MHz
Direct sampling receiver operating @ 122.88MHz ADC: LTC2165 16bit
DDC (Digital Down Converter) FPGA Xilinx Spartan.6 family down to 192Ksps
DDC, Filter & Demodulator ARM STM32F429 floating point microcontroller
Demodulation CW, LSB, USB, AM
LSB,USB Filters selectable 1600-3100Hz Bandwitdh with 100Hz step plus 4000-5000-6000 Hz Bandwitch
AM Filter selectable from 2500 to 6000Hz with 500Hz step
CW Filters 2600Hz-1500-1000-500-300-100Hz Bw plus 4 Cw peak filters applied after 100Hz Bw to obtain an overall filter of 20Hz Bw
Noise Reduction 10 levels
Noise Blanker 10 leves
VFO A, VFO B, 199 MEMORIES with Frequency/ Alphanumeric label visualization, programmable by FDM-SW2 memory manager
Programmable BAND selections: selectable up to 20 quick recallable memories from 180 to 199
TX:
DDS AD9957 with 368.64 MHz clock
Microphone input ADC 48KHz @16bit selectable gain -12dB to +12dB
Key and Paddle input for CW operation (Iambic A e Iambic B selectable)
5W min power output from 160m to 6m, 8 W typ output @14MHz
PTT Output connector to drive external amplifiers
GENERAL:
All programmable components (ARM RX, ARM TX, Flash for FPGA, User Interface microcontroller and USB controller) are firmware upgradable
CAT input USB control interface with FTDI controller
Antenna connectors: RTX SO-239, RX SO-239
Monitor output: 0dBm SMA to be used as test equipment allow the use as a Digital RF Generator
LCD Backlight RGB programmable, depending on function can change the colour (RX, TX , PC remote control)
10MHz Reference input connector: SMA
Power supply: 2.1mm DC Plug 13.8VDC RX consumption 500mA typ (13.8V) TX: tbd
Size: Witdh 180mm (7.00") x Depth 155mm (6.10") including Knob and connectors or 130mm (5.10") only enclosure x Height 70mm (2.75")
Weight: 1.2Kg (2.4 lb), shipment package 2.2Kg (4.85 lb)
PC mode operation with FDM-SW2 software specifications updated 6 June 2014
Up to 9 simultaneous receivers combination ( 1 on center frequency stand alone, 4 FDM-SW2 in fist 192kHz channel and 4 in the second 192kHz channel
Each receiver on FDM-SW2 have a dedicated Audio Channel and a dedicated CAT to be usable from external application with Visrtual serial ports and Virtual Audio Cables
Selectable Band configuration from 192kHz to 6MHz DDC bandwith (192,384,768,1546,3072,6144Ksps) 2 channel 192Ksps, 2 channels 384Ksps
RX and TX SPLIT mode operation: VFO A for RX while VFO B used for TX (with FDM-SW2 simple click operation to change TX frequency)
CW skimmer integration management (DX Spot visualization & tuning capability)
Direct digital Modulation using USB soundcard based on CMedia chipset digitally interfaced with ARM floating point microcontroller and DDS
