ELAD FDM-DUO 16-bit SDR + Elad QSF-06 Preselector

ELAD FDM-DUO 16-bit SDR + Elad QSF-06 Preselector (popunjen sa BPF)

Samo za ozbiljne radioamatere, vrhunski 16-bit SDR primopredajnik (HF/6m), prag šuma do -140 dbm, idealan za natjecanja kao KV baza za 2m/70cm transverter, sa QSF-06 preselektorom, popunjenim band-pass filterima za HF bandove. Mint stanje, kao novo, vlasnik nepušač, bez ogrebotina, potpuno ispravan.
Prodaje se kao komplet (ELAD FDM-DUO 16-bit SDR + Elad QSF-06 Preselector (popunjen sa BPF)), kablovi za međuspoj, mikrofon, kablovi za napajanje, 3xUSB kablovi za PC interkonekciju, cijena kompleta 1350 EUR, što je niže za 300 EUR od nabavne.

Specifikacije za ELAD FDM-DUO:

DUAL MODE SDR TRANSCEIVER : STAND-ALONE & PC BASED

FDM-DUO is an SDR transceiver that offers the possibility to operate Stand-Alone like traditional radio or connected to a computer discovering the possibilities provided by the SDR technologies.

RX Stand-Alone Specifications

Frequency range: 10kHz - 54MHz.
Direct sampling receiver operating @122.88MHz, ADC: LTC2165 16bit.
DDC (Digital Down Converter) made with FPGA Xilinx Spartan 6.
Filters & Std-Alone Demodulator made with ARM STM32F4 microcontroller with floating point unit.
Demodulation: CW, CWR, LSB, USB, AM, FM narrow.
Selectable LSB and USB filters; 1600Hz to 3100Hz with 100Hz step plus 4000Hz, 5000Hz and 6000Hz values.
Selectable AM filters from 2500Hz to 6000Hz with 500Hz step.
Selectable CW filters; 2600Hz, 1500Hz, 1000Hz, 500Hz, 300Hz and 100Hz plus 4 CW peak filters applied after 100Hz filter to obtain an overall filter of 20Hz bandwidth.
Selectable FM filters: narrow, wide and data.
Pitch setting: up to 1kHz with 10Hz step.
RIT feature.
Three audio volumes: main, auxiliary and sidetone.
Squelch: off and 10 on levels.
Gain Control: automatic (AGC) and manual, with settable threshold.
Noise Reduction: off and 10 on levels.
Noise Blanker: off and 10 on levels.
Auto Notch: off and 2 on levels.

TX Stand-Alone Specifications

Supports bands from 160m to 6m.
Modulation and filtering made with ARM STM32F4 and DDS AD9957 with 368.64MHz clock.
Modulation: CW, LSB, USB, AM, FM narrow.
Microphone input (ADC 48KHz@16bit) with selectable gain (+/-12dB). Tx bandwidth selectable. Compression gain settable.
Key and Paddle input for CW operation, supports Iambic A and B, settable CW speed for Paddle, settable CW delay.
Not filtered 0dBm output on SMA connector (can be used as test equipment or as digital RF generator).
Up to 5W output power on all bands plus Max Selection (e.g. 8W@14MHz).
PTT Output to drive external amplifiers.

Main Features

VFO A and VFO B, with dedicated frequency, step and mode.
200 MEMORIES with dedicated frequency, step, mode and alphanumeric label.
QuickMem feature: up to 20 re-callable memories for band selection (memories 180 to 199).
QuickStep feature: allows to quickly change step without modify VFOs or MEM step.
Tune feature to facilitate antenna tuning with external antenna tuner.
VFOA=VFOB feature.
VFO to MEM and MEM to VFO features.
Std-Alone Split feature, VFO A for RX and VFO B for TX.
2 customizable keys (F4 and F5) with various functions: CW message sending, split management, tuning knob lock, CW/CWR choice.
2 frequency entering modes : with step and digit by digit.
Integrated CW decoder.
LCD color programmable with RGB values for the various operating modalities (RX, TX , PC remote control, ...).
All programmable components (ARM RX, ARM TX, Flash for FPGA, User Interface microcontroller and USB controller) are firmware upgradable.

General Specifications

Antenna connectors: RTX SO-239, RX SO-239.
CAT USB control interface with FTDI controller, manages also RTS and DTR signals to transmit.
Proprietary EXTIO Interface to connect accessories.
10MHz Reference Input on SMA connector.
Power supply: 2.1mm DC Plug, 13.8VDC.
RX consumption: typ. 500mA@13.8VDC.
TX consumption: