WiNRADiO WR-CC1PPS-100 Coherence Clock & 1PPS Kit

Overview

The WiNRADiO WR-CC1PPS-100 Coherence Clock & 1PPS Kit fulfills a dual role of a coherent clock generator and a 1PPS input interface, making it possible to easily couple multiple WR-G35DDCi receivers to form a coherent receiver group, as well as providing a 1PPS input for applications requiring time stamping or other similar applications.


WiNRADiO WR-CC1PPS-100 Coherence Clock & 1PPS Kit

The Kit consists of a single Sampling clock generator board, eights SMA coaxial cables for distribution of the 100 MHz coherent sampling clock, eight digital synchronization cables for synchronization of the receivers, one digital synchronization cable for the 1PPS signal, and other kit accessories. A detailed description of the Kit can be found in the WR-G35DDCi Multichannel Coherent Application Guide.

The Sampling clock generator board contains a high-stability low-phase noise 100 MHz local oscillator, power amplifier and power splitter with eight coherent outputs to provide a coherent sampling clock for up to eight WR-G35DDCi receivers - which must have the ADC Clock Input Option (/CR) fitted. Moreover, two sampling clock generator boards can be tied together to provide a coherent sampling clock for up to sixteen receivers.

The passive output power splitter provides very good passive (uncalibrated) coherency of the output sampling clock and the local oscillator provides very low phase noise. These features make the Kit (together with the WR-G35DDCi receivers) ideal for professional applications such as the estimation of direction of arrival (DoA, DF), beam-forming, smart antennas and other application requiring coherent multichannel reception and processing of radio signals.

Features

 Output sampling frequency 100 MHz
 Eight coherent sampling clock outputs
 Two Kits can be cascaded to provide 16 coherent outputs
 Very low phase noise
 Very high frequency stability
 Selectable internal or external reference frequency
 Output impedance 50 ohm
 Simple installation
 Integrates with WR-G35DDCi receivers
 PCIe format - passive card, no software drivers required
 PCIe bus powered

The WiNRADiO WR-CC1PPS-100 Coherence Clock & 1PPS Kit is especially suitable for use with the WiNRADiO WR-G35DDCi Excalibur Ultra (WR-G35DDCi) - a high performance, direct-sampling, software-defined ultra-wideband shortwave receiver with a frequency range from 1 kHz to 45 MHz. Physically, the Coherent clock generator board of the Kit installs into the lowest PCIe slot of a PC followed by up to eight WR-G35DDCi receivers, providing a neat and compact coherent multichannel receiver solution.


Diagram of WiNRADiO WR-CC1PPS-100 Coherence Clock & 1PPS Kit driving eight WR-G35DDCi receivers

Diagram of WiNRADiO WR-CC1PPS-100 Coherence Clock & 1PPS Kit driving eight WR-G35DDCi receivers

Technical specifications
Output sampling frequency 100 MHz
Sampling clock output level +2 dBm min. into 50 ohm
Number of sampling clock output ports 8
Reference frequency 10 MHz
REF IN input impedance 50 ohm
REF IN input level +2 dBm min.
REF IN frequency tolerance +/- 20 ppm
REF OUT output level +4 dBm typ. into 50 ohm
Internal frequency reference stability 0.5 ppm
1PPS input impedance 50 ohm
1PPS input level L 0 - 0.8 V
1PPS input level H 2.1 V - 5 V

System requirements:

 PC with 2 GHz quad core CPU or faster
 One PCI-e bus slot, to be used by the Kit
 Windows XP, Vista, 7, 8 or 10


 WR-G35DDCi Multichannel Coherent Application Guide
 G35DDC coherent mode SDK
 WR-G35DDCi 'EXCALIBUR Ultra'

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