DKARS MAGAZINE

New hamgear and gadgets (4/4)ColibriDDC Small receiver for great expertsSmall-size ColibriDDC receiveris intended to receivethe signals in HFfrequency band 0.09 to 55MHz, and also with thehelp of external filters toreceive frequencies up to800 MHz and work together with PC. It was designed in accordancewith the principle of direct digital signal sampling by highspeed analog-digital converter. Such architecture allows to getrid off additional noise of analog cascades and makes the airsound natural and transparent. Local network interface allowsto use the device remotely and also allows to connect simultaneouslyseveral receivers to one PC for solving various signalreceipt tasks. ColibriDDC is a good low-cost receiver to reviewthe technology of direct sampling which can be used in differentspheres.Note! The receiver doesn't contain band pass filters and can beoverloaded by the strong signals from air.PC requirementsProcessor Intel Core2Duo and higherVarious contributionsVideo card supporting the technology of OpenGL 1.5 andhigher and RAM 256 Mbyte and moreLocal network connector 100 Mbps or 1 GbpsOS Windows XP/7/8 x32 or x64, OS Linux Ubuntu x64SoftwareExpertSDR2 program with adapted interface for the receivingmode is used together with the ColibriDDC receiver. At the presentmoment software works in the receiving mode and maintainstwo independent channels with the bands to 312 kHz. DSPlibrary, developed by the company Expert Electronics, allowedto improve the receipt quality and to higher the software reliability.Two OS are supported: Windows 8 and Linux Ubuntu.Price: € 649.00 @ www.wimo.deMain capabilities- ADC with sampling frequency 125 MHz and 14 bit resolution isused;- Two independent receiving channels with sampling frequenciesup to 312 kHz;- Record air stations with the bandwidth to 312 kHz and theopportunity to reproduce it later;- Opportunity to receive in Nyquist zones up to 800 MHz(necessary to set additional external filters);- Wide spectrum scope up to 60 MHz;- 24 bit audio – DAC for decreasing signal delay;- Connector for controlling external devices, 7 programmabletransistor switches;- Interface with PC – local network 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 fieldDual chanel HF receiverPanadapter to classical transceiversRemote reception point for contests and other applicationsSpectrum analyzer with wide spectrum scope up to 60 MHzWork with external digital signal decoders (digital typeconnection programs, CW skimmer, etc.)Vehicle mounted mastsTripod mounted mastsPhotography mastsRapid deploymentmasts,.Trailer mastsMasts from 5m to 40mLighting masts Militarymasts Police & Firemasts. Design & fabricationof masts NATOquality equipmentThermal imaging mastsAntenna masts. Videomasts Wind turbinemasts Pan & tilt plusmany ancilliary options,and much more .DKARS Magazine, editie 14 -41- augustus 2015