ColibriDDC Receiver


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High performance SDR Receiver in a small box

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10-15 days

536,36 €

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A compact ColibriDDC receiver was designed to work on HF band 0.09 to 55 MHz, for better performance you can add the internal BPF-module (160-10M bands). With the help of external filters, ColibriDDC can effectively operate on frequencies up to 800 MHz. LAN interface allows you to use the receiver remotely via LAN cable and to connect several receivers to one PC at the same time, for various projects. Also, you can hook up the receiver with the RaspberryPi3 (with installed ExpertRS software) and use it from any place on the Planet, you just have to have a reliable internet connection.


Note! The basic version of the receiver doesn't include the BPF-module.


Main features and capabilities of the receiver

  • RX path based on DDC (Direct Down-Conversion) architecture

  • ExpertRemote system provides full remote control of the receiver

  • 2 software receivers (each up to 312 kHz) + SubRX for each of them (4 slices total) + independent wideband Bandscope up to 62.5 MHz

  • ExtCTRL connector to control external devices with 7 powerful keys with open collector

  • 100 Mbps Ethernet LAN interface provides fast and reliable connection to PC

  • TCI interface for seamless connection with third-party software like SDC (with its own Skimmer), LogHX, SWISSLOG and RUMlog, more are coming

  • Record IQ channel with the bandwidth up to 312 kHz

  • Receiving in undersampling mode up to 800 MHz (requires external BPF)

  • High-quality 24-bit audio–DAC installed for the smallest signal delays

  • Low power consumption, 5V 0.64A

  • External reference generator input 10 MHz

  • Small size W 65 x H 26 x L 125 mm


PC requirements

  • CPU Intel Core i3 1.6 GHz and higher

  • 8GB RAM

  • Video card, minimum resolution 1024x600, 128 MB, OpenGL 1.5 support and higher

  • Local network connector 100 Mbps or 1 Gbps

  • The ExpertSDR2 works with Windows 7-10, OS Linux Ubuntu x64 and macOS 10.12 and newer


Receiver's block diagram

  • REF – connector to connect external 10 MHz generator
  • PLL – ADC clock frequency synthesizer
  • ATT – attenuator
  • MCU – microcontroller unit
  • Ant – connector to connect the HF band antenna
  • TCXO – inbuilt temperature compensated crystal oscillator
  • ADC – high-speed analog-digital converter
  • DAC – audio digital-analog converter
  • EXT CTRL - connector for controlling the external devices
  • LPF – input low-frequency filter (disabling)
  • FPGA - field programmable gate array
  • LAN – local network connector
  • PHONES – jack for connecting headphones
  • Front – front panel
  • Rear – rear panel


Basic configuration: 

  • ColibriDDC Receiver
  • Power source 5V 2A
  • Adapter SMA - PL259 (UHF)
  • LAN – cable


BPF-KIT configuration: 

  • ColibriDDC Receiver
  • Power source 5V 2A
  • Adapter SMA - PL259 (UHF)
  • LAN – cable

Additional configuration:

In addition to basic receiver's configuration can be purchased the following devices:

  • PC's headset EE-PH-01
  • Control panel EE-EP-01 or Constructor EE-EP-02 for comfortable remote work


Receiving bandwidth, MHz 0.01 - 55 (0.01-62.5)
Receiving bandwidth in all Nyquist zones, MHz 0.01– 800
Spectrum scope bandwidth (up to), MHz 62.5
Amount of independent receiving channels 2
Sensitivity, uV 0.3
Blocking Dynamic Range (BDR), dB 110
IMD3 Dynamic Range, dB 90
Image channel suppression, dB >110
Supply voltage range, V 4.5...5.5
Maximum consumption current, A 0.64
RF ADC clock frequency, MHz 125
RF ADC resolution, bit 14
Local oscillator stability, ppm +/- 0.5
Built-in attenuator, dB 0, -20
Built-in audio DAC resolution, bit 24
Dimensions W x H x L, mm 64x24x112
Weight, kg 0.3

* More modes can be supported via external software

Specifications are subject to change without notice or obligation and specifications are only guaranteed within the amateur radio bands.


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ColibriDDC Receiver

ColibriDDC Receiver

High performance SDR Receiver in a small box