for great experts
Small-size ColibriDDC receiver is intended to receive the signals in HF frequency band 0.09 to 55 MHz, and also with the help of external filters to receive frequencies up to 800 MHz and work together with PC. It was designed in accordance with the principle of direct digital signal sampling by high-speed analog-digital converter. Such architecture allows to get rid of additional noise of analog cascades and makes the air sound natural and transparent. Local network interface allows to use the device remotely and also allows to connect simultaneously several receivers to one PC for solving various signal receipt tasks. ColibriDDC is a good low-cost receiver to review the technology of direct sampling which can be used in different spheres.
Note! The receiver doesn't contain band pass filters and can be overloaded by the strong signals from air.
ExpertSDR2 program with adapted interface for the receiving mode is used together with the ColibriDDC receiver. At the present moment software works in the receiving mode and maintains two independent channels with the bands to 312 kHz. DSP library, developed by the company Expert Electronics, allowed to improve the receipt quality and to higher the software reliability. Two OS are supported: Windows 8 and Linux Ubuntu.
Receiver's block diagram
In addition to basic receiver's configuration can be purchased the following devices:
HF octave band filters:
|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|
|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|
* - with a help of the external software can be supported a larger amount of modes
This manual is good for either new or experienced users, it describes the hardware of the receiver and explains how to operate it with the ExpertSDR2 software
An instruction for the CW SkimmerServer 16/01/2017
An instruction for the ExtIO library 16/01/2017
This guide describes how to setup ExpertSDR2 for use with one or two CW Skimmers.
"Warning!" Before the installation of the latest version of the ExpertSDR2, please uninstall the previous version completely with "Programs Add/Delete".
Library for work with CW SkimmerServer software
Library ExtIO for work with the third party software
ColibriDDC receiver review in SDRZone.com by Andrew Barron ZL3DW
Article in German magazine FUNKAMATEUR about ColibriDDC receiver
Mike Richards review of the Expert Electronics ColibriDDC published in the July 2015 issue of RadioUser. Supplied courtesy of PW Publishing Ltd., which retains the copyright.
Review of ColibriDDC receiver by Fernando Duarte