FDM-DUO BLACK

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: 2.2amp

Size: Witdh 180mm (7.00") x Depth 155mm (6.10") including Knob and connectos 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