ColibriDDC 0.01-55MHz receiver


ColibriDDC 0.01-55MHz receiver 1730
Expert Electronics
Price: 599.95 USD

Elecraft K3 and Colibri DDC connections

Small-size ColibriDDC receiver is intended to receive signals in HF frequency bands from 0.09 to 55 MHz, and also with the additional external filters to receive frequencies up to 800 MHz and operater with a PC. Receiver was designed in accordance with the principle of direct digital signal sampling by high speed analog-digital converter. Such architecture allows to suppress noise of analog stages and makes the air sound natural and transparent. Local network interface allows remote operation over a network and also allows to connect simultaneously several receivers to one PC.

Note! The receiver does not contain band pass filters and may be overloaded by strong near-by signals.

Main capabilities

  • ADC sampling frequency 125 MHz and 14 bit resolution
  • Two independent receiving channels with sampling frequencies up to 312 kHz
  • Recording with a bandwidth up to 312 kHz, replay and analyses
  • Receive in Nyquist zones up to 800 MHz (necessary to add external filters)
  • Wide spectrum scope up to 60 MHz
  • 24 bit audio – DAC for minimizing of signal delay
  • Connector to control external devices, 7 programmable transistor switches
  • Interface with a PC – LAN 100 Mbps
  • Low power consumption: 5V 0.64A
  • External reference generator input 10 MHz
  • Small dimensions W 64 x H 24 x L 112 mm
  • ExpertSDR2 receiver's software

Application fields

  • Dual channel HF receiver
  • Pan-adapter for analog transceivers
  • Remote reception point for contests and other applications
  • Spectrum analyzer with spectrum scope up to 60 MHz
  • Operation with 3rd party software: Digital Decoders, Loggers, CW skimmer, etc.

PC requirements

  • Processor Intel Core2Duo and higher
  • Video card supporting OpenGL 1.5 and higher and RAM 256 Mbyte or more
  • Local network connector 100 Mbps or 1 Gbps
  • OS Windows XP/7/8/10 x32 or x64, OS Linux Ubuntu x64


Special version of ExpertSDR2 software with adapted interface for receive mode only is designed for ColibriDDC receiver. At the present software supports two independent channels with the bandwith up to 312 kHz. Two OS are supported: Windows 7/8/10 and Linux Ubuntu.

Receiver's block diagram

  • REF – connector to connect external 10 MHz generator
  • PLL – ADC clock frequency synthesizer
  • ATT – attenuator
  • MCU – microcontrol 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 supply adapter: ~AC110v/DC 5V 2A
  • Adapter SMA - SO-239 (PL259 UHF female)
  • LAN – cable

Additional options:

In addition to basic receiver's configuration following options available:

  • PC's headset EE-PH-01
  • Control panel EE-EP-01 or E-coder mini (kit) EE-EP-02 for comfortable remote work.
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