Spectracom time and frequency products support virtually every communications and broadcast system

Aerospace and Defense

Digital Broadcast

Financial Services

Government and Civilian Agencies

Healthcare

Homeland Security

Public Safety

Telecommunications

Transportation

Manufacturing

System Diagram

	Learn how a single frequency network is synchronized

Documents

	Time and Frequency Synchronization for Digital Broadcast brochure

Spectracom provides reliable Time & Frequency solutions to synchronize digital broadcast distribution networks, especially Single Frequency Networks (SFN).

The key feature of new digital broadcast technology is the use of a multi-carrier system Coded Orthogonal Frequency Division Multiplex (COFDM) to overcome adjacent channel interferences and reflections of same signal. This process allows reliable operation of SFN networks since all transmitters use the same frequencies. All transmitters in a SFN need to be synchronized so that their emitted signals are frequency identical and bit identical. SFN operation requires Spectracom equipment to ensure synchronization using a universal time and frequency reference.

Many thousands of Epsilon Clocks™ and Ageless master oscillators ensure the deployment of Digital Broadcast networks all over the world. These solutions allow broadcast operators and equipment manufacturers to meet the challenges of supporting legacy infrastructure along with new services and new technologies. Spectracom solutions are compliant with all existing standards: DVB-T, DVB-H, DVB-SH, FLO, T-DMB, DRM, etc.

Applications

Digital Video Broadcasting
Digital Audio Broadcasting
SFN adapter / MIP inserter
Digital Broadcast Transmitters
COFDM Encoder and Modulator

Products for Digital Broadcast


EC22S Redundant Epsilon GPS Clock Dual hot-swapable GPS clock modules in 2RU chassis Ideal for large digital broadcast installations Up to 8 x 1 PPS TTL outputs Up to 8 x 10 MHz outputs Remote management by SNMP/HTTP Choice of 3 OCXO oscillator options Stratum-1 NTP time server EC22S Redundant Epsilon GPS Clock Details		EC20S Epsilon GPS Clock Precise GPS clock in 1RU chassis Ideal for medium-sized digital broadcast installations Precise 1PPS ouput (up to x10) Precise 10 MHz output (up to 10x) Remote management by SNMP/HTTP OCXO and Rubidium oscillator options EC20S Epsilon GPS Clock Details

EBO3 Epsilon Board OEM Inputs: 12 channel GPS, 1PPS, 10 MHz, NMEA Outputs: 1PPS, 10 MHz, NMEA Network management over IP Evaluation kit available to speed development EBO3 Epsilon Board OEM Details		EC1S Epsilon GPS Clock Module GPS reference input Outputs: 1 PPS TTL output, 10 MHz sine wave output, Time of Day output Two auxiliary inputs/outputs for a full range of applicability EC1S Epsilon GPS Clock Module Details

SAS-E Epsilon Switch & Amplifier Systems 10 MHz and 1PPS distribution Distribution of timecode signals 2 versions support a variety of signal quantity Supports master clock redundancy SAS-E Epsilon Switch & Amplifier Details		Microwave Antenna Alignment Systems Microwave antenna alignment solution for accurate antenna alignment which is critical for optimizing microwave link reliability. Microwave Antenna Alignment System Details<