ColibriDDC

Specifications    Prices

SDR receiver for the frequency band 0.01 to 55 MHz, and up with the help of external filters, working together with PC. It was designed in accordance with the principle of direct digital signal sampling. Record / playback stations into the bandwidth of 312 kHz. Ideated in Russia, year of introduction 2015.

Reference market : amateur-radio

ColibriDDC specifications

General
Frequency coverage
0.0100 ~ 55.0000 MHz [1] [2]
Mode [3]
CW / LSB / USB / DSB / AM / AM-S / FM / WFM
Tuning step
0.1 Hz min
1 / 5 / 10 / 25 / 50 / 100 / 250 / 500 Hz / 1 / 2.5 / 5 / 6.25 / 9 / 10 / 12.5 / 25 / 50 / 100 KHz
Receiver
Sensitivity
CW [4]0.07 uV (1-55 MHz)
0.5 uV (62.5-180 MHz)
>1 uV (180-800 MHz)
SSB0.3 uV (1-55 MHz)
Selectivity [5] [6]
CW0.05 / 0.1 / 0.25 / 0.4 / 0.5 / 0.65 / 0.8 / 1 / 1.2 KHz (-3dB)
SSB / Digital1.8 / 2.0 / 2.2 / 2.5 / 2.7 / 2.9 / 3.0 / 3.3 / 3.5 KHz (-3dB)
AM / AM-S / DSB3.0 / 3.5 / 4.0 / 5.0 / 6.0 / 8.0 / 10 / 12 / 16 KHz (-3dB)
FM3.0 / 3.5 / 4.0 / 5.0 / 6.0 / 8.0 / 10 / 12 / 16 KHz (-3dB)
WFM150 / 200 / 250 / 260 / 270 / 280 / 290 / 300 / 310 KHz (-3dB)
ADC (Analog to Digital Conversion)
Sample rate125 Msps
Resolution14 Bit
DDC bandwidth39 / 78 / 156 / 312 KHz
RF preamplifier
10 dB
RF attenuator
20 dB
DR (Dynamic Range)
90 dB
Blocking
110 dB (HF)
106 dB (VHF)
Image rejection
> 110 dB
AGC (Automatic Gain Control) [7]
Fast, medium, slow, long, OFF
Frequency stability
±0.5 ppm
Features
Memory
Unlimited memory channels
Antenna
SMA 50Ω
Power supply
4.5~5.5 VDC external (5V nominal)
VAC with power adapter
Power consumption
640 mA max
Audio output
Jack 3.5 mm external headphone
Connections
LAN (control)
SMA (10 MHz reference input)
15-pin DIN (controlling of external devices)
Mechanical and environmental data
Operating temperature
from 0°C to +50°C
Dimensions
64 (W) x 24 (H) x 112 (D) mm
Weight
300g

  1. 0.01-62.5 MHz spectrum scope bandwidth.
  2. Opportunity to receive in Nyquist zones up to 800 MHz with optional external filters.
  3. Further modes such as DRM can be implemented with third party software.
  4. 500 Hz bandwidth.
  5. Also user-defined, possible on any modulation mode except DRM.
  6. 10 KHz fixed for DRM.
  7. Also user-defined 100~1000 ms.
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ColibriDDC description :

ColibriDDC is a SDR receiver, in small-size box, for the HF frequency band from 10 KHz to 55 MHz working together with a computer or LAN. The circuit configuration is a direct sampling with high-speed ADC, the front-end contain a low pass filter (with disable) but not band pass filters. So, with the help of external filters is possible to receive frequencies up to 800 MHz in under-sampling mode. Local network interface allows to use the ColibriDDC remotely and also allows to connect simultaneously several receivers to one PC for solving various signal receipt tasks. Main features: two independent receiving channels, record and playback of sampled frequencies wide up to 312 kHz, high performance ADC with sampling frequency of 125 MHz for 14 bit resolution, opportunity to receive in Nyquist zones up to UHF with external filters, wide spectrum scope up to 62.5 MHz, 24 bit audio DAC direct output, multi-pin connector for controlling external devices, external reference at 10 MHz standard, ExpertSDR2 software.

Application fields include dual channel HF/VHF receiver, panadapter for transceivers, remote reception point for contests and other applications, RF spectrum analyzer. PC requirements: Intel Core2Duo processor or higher, local network connector 100 Mbps or 1 Gbps, Windows 7~10 32 or 64 / Linux Ubuntu 64. ExpertSDR2 software with adapted interface for the receiving mode is used together with the ColibriDDC receiver. At the present moment software, supported are Windows 8 and Linux Ubuntu, works in the receiving mode and maintains two independent channels with the bands to 312 kHz.

ColibriDDC block diagram :

ColibriDDC block diagram

Blocks: [REF] input connector for external 10 MHz reference, standard CMOS levels with 2kΩ//1pF impendance. [PLL] ADC clock frequency synthesizer. [ATT] RF attenuator. [MCU] microcontroller unit. [Ant] connector for the antenna. [TCXO] built-in temperature compensated crystal oscillator. [ADC] high-speed analog to digital converter. [DAC] audio digital to analog converter, 24 bit with 41 Ksps. [EXT CTRL] connector for controlling the external devices. [LPF] input low-frequency filter with disable. [FPGA] field programmable gate array, for the DDC or Digital Down Conversion. [LAN] local network connector. [PHONES] jack for connecting headphones. [Front] front panel. [Rear] rear panel.

ColibriDDC rear/front panel and connections :

ColibriDDC rear and front panel

Reference / Description
1LAN interface
2DC power socket, internal protected from polarity reversal
3Headphones jack, 16~32Ω
4Power on/off
5LED indicating the network mode
6Antenna input, female connector
7Boot button, for firmware update
8EXT CTRL accessory socket
9IP address reset button
1010 MHz input, male connector
15-pin accessory socket :

Pin X1...6
DescriptionContacts for programmable switchers
SpecificationsOpen collectors, software defined
Pin CP
DescriptionContact of the protective diode
Specifications---
Pin +5V
DescriptionOutput pin at +5 Volt
SpecificationsNever connect a load with current more than 100 uA
Pin G
DescriptionGround
Specifications---
Pin I1, I2
DescriptionReceive functions indicators
SpecificationsSoftware defined
Pin NC
DescriptionNot used
Specifications---

ColibriDDC circuit and optional kit :

ColibriDDC circuit is based on 4-layered PCB (Printed Circuit Board). All elements are installed on the the top layer via the SMC assembly. Manufacturing process is fully automatic and is carried out by the high-quality Taiwan quality manufacturers. All functional units of the receiver are placed on the PCB under RF shields.

ColibriDDC circuit

As optional is available the BPF-kit board, that should be installed inside the receiver's case, with octave-band filters for a better IP2 dinamic range on HF from 1.7 to 30 MHz:

Filter / Bandwidth
BPF 11.73 ~ 2.6 MHz
BPF 22.6 ~ 4.3 MHz
BPF 34.3 ~ 6.5 MHz
BPF 46.5 ~ 7.9 MHz
BPF 57.9 ~ 13.0 MHz
BPF 613.0 ~ 15.9 MHz
BPF 715.9 ~ 21.0 MHz
BPF 821.0 ~ 30.0 MHz

ColibriDDC price

We have collected for your convenience the Expert Electronics ColibriDDC sale price (UK Pounds) and its trend over time. Useful to guarantee a cheaper purchase of this radio and to put it for sale in the second-hand market. Of course offers, accessories, warranty terms and conditions can lead to different figures.

Price Date Condition
GBP 600.00
(699EUR)
2021-oct Brand-new
GBP 609.00
(699EUR)
2018-nov Brand-new

ColibriDDC review

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