ELAD FDM-DUOR (Receiver Only Version)

ELAD FDM-DUOR (Receiver Only Version)
£749.95 (Inc. VAT 20.00%)
Ex-VAT Price : £624.96
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  • Overview
ELAD FDM-DUOR (Receiver Only Version) Black only.

FDM-DUOr is a SDR receiver 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.

MAIN FEATURES:
  1. Frequency range: RX 9kHz to 54MHz direct sampling receiver + VHF undersampling reception
  2. 10 selectable and customizable filter preselectors
  3. Internal switch box for use with an external transceiver
  4. Stand-alone Modes: CW CW+ CW- LSB USB AM
  5. ADC Linear LTC2165,16bit clocked @122.88MHz
  6. DDC FPGA Spartan 6 XC6SLX25 + Serial Flash for stand-alone mode
  7. Stand-alone RX demodulator with STM32F4 ARM floating point μController
  8. LPC1766 Cortex M3 for LCD & Keyboard control
  9. Clocking source Si5338 drived by 10MHz TCXO or External reference input
  10. CAT USB interface with FTDI controller
  11. Fully managed by FDM-SW2 software included

    After the great success of the FDM-DUO transceiver the manufacturer now offers the "R" as a receiver — as to be expected by Elad in a sleek italian design and equipped with top-notch technology.

    The FDM-DUO-R is a shortwave receiver which uses state-of-the-art SDR technology, but which can be used like a traditional radio. Familiar operating controls like a large VFO knob, dials for volume, filters and other functions as well as pushbuttons for often used settings lend the FDM-DUO-R an ease of use like a classical receiver. Inner values like a fast AD converter and powerful digital processing capabilities are the basis for excellent reception capabilities, like they are known from the FDM-S2 and FDM-DUO.

    A very interesting innovation of the FDM-DUO-R receiver are 10 slots for pre-selector boards, which can be populated by the user as needed. Elad offers various high-pass and band-pass filters, for example to suppress nearby medium wave radio stations. Band-pass filters are available for the amateur radio bands and help to achieve excellent large signal handling capabilities, suitable even for contest stations. And users demanding even more flexibility can use two empty boards to design their own filters perfectly matched to their needs. By using a clever combination of the two antenna inputs, attenuators, the standard 54MHz low pass filter and the switchable ten pre-selector positions the receiver design offers a lot of possibilities for individual tuning.

    The receive frequency range is from 10 kHz to 54 MHz [1]. The two antenna inputs are selected by programmable band edges, so the the right antenna and filter module is selected depending on the frequency. A TCXO is used for good frequency stability, the side band noise of the oscillator is a very low -130 to -136dBc, resulting in a low noise floor and excellent sensitivity. Alternatively an external 10 MHz precision clock reference can be used as master clock. Depending on how the FDM-DUO-R is used - with our without computer - different operating modes are available: without computer USB, LSB, CW, AM and FM, with computer additionally WFM and DRM can be received. DRM is available with the supplied software, no complicated installation of additional software is needed.

    The nice thing about the FDM-DUO-R is, that it can be used with or without a computer. Without computer the receiver is an excellent companion for the demanding SWL, even when going portable during a vacation. And when working together with a computer the FDM-DUO-R offers state-of-the-art SDR capabilities like a waterfall display, decoding, recording and much more. The supplied FDM-SW2 software allows the operation of up to 4 receivers at the same time. The manufacturer also supplies an "ExtIO" DLL program, which is required to use the receiver with other software like SDR#, HDSDR, SDR-Radio and more.

    Further hardware features of the FDM-DUO-R are worthy of professional radios. The precision clock iput was already mentioned. A USB CAT interfave allows remote control with the right software, the CAT protocol is fully documented. A "Mute" input stops the receiver when a nearby transmitter is keyed, providing seamless integration into an existing amateur radio station. The 9 pin extension port is compatible with the existing extension boards by Elad. Connections for headphones and line out are provided. The receiver requires a 13.8V DC supply, max. current intake is approx. 500 mA.

    FDM-DUO-R Frontend Filter Selection
    Technical Data
    FDM-DUO-R
    Frequency Range Rx10 kHz - 54 MHz RX direct sampling [1]
    Connector2 x PL
    Reference Input10MHz, SMA
    Modes (Stand-Alone, without computer)CW, USB, LSB, AM, FM
    Modes (with computer)CW, USB, LSB, AM, S-AM, FM, WFM, DRM
    AD Converter16 Bit
    ADC clock122.8 MHz
    Phase noise-136dBc @100 kHz, -130dBc @10 kHz
    CATUSB 2.0
    I/Q outputUSB 2.0
    Weightca. 1200 g
    Dimensions180 × 155 × 70 mm

    For further technical specifications please see the FDM-DUO-R Usr Manual, provided by the manufacturer at their download site.

    [1] The frequency range covers VHF from 76–108 and 136–160 MHz, just like the FDM-S2. To use the VHF ranges a special filter is required, which is currently not available. The manufacturer has informed us that a filter is in preparation. Unfortunately a precise shipping date has not been specified.


    • Included in shipment is:
    • 2 × USB A/B Cable
    • Power supply cable
    • USB-Stick with FDM-SW2 software, handbooks in english and italian (PDF)
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