
The Harris® Synchrony™ XA distributed transmission and mobile network adapter performs a variety of functions that enable ISDB-Tb, DVB and CTTB broadcasters to efficiently expand their main channel and mobile digital broadcast services. It enables the creation of distributed transmission systems (DTS) in which multiple transmitters operate on the same frequency to improve coverage. Additionally, Synchrony XA seamlessly brings together main channel HD and SD, mobile audio/video streams and supporting content data into a complete service multiplex.
A single unit can be configured as a DTS adapter, mobile multiplexer or both. The broadcast studio requires only one Synchrony XA to address several vital concerns for broadcasters — expanding digital coverage to reach new markets, filling coverage gaps created by digital coverage patterns and taking advantage of the opportunities afforded by mobile video and data-casting.
Distributed Transmission Systems (DTS)
Distributed transmission systems (DTS) are one of the solutions recommended to broadcasters to address the coverage gaps and variations resulting from their digital conversion. Serving as the core of DTS implementation, Synchrony XA precisely manages the timing and synchronization of the modulated signal in each transmitter to minimize interference zones where coverage overlaps.
Flexibility and Upgradeability
Flexibility and upgradeability are important considerations for broadcasters as they evaluate solutions for expanding into new digital broadcast and service models.
Harris Reliability
Synchrony XA operates in full compliance with DTV, mobile and DTS. Harris quality ensures the highest level of reliability to keep all services on the air.
Mobile Preprocessing
The Synchrony XA preprocesses mobile video for generation of the mobile signal and multiplexes mobile data into the transport stream of these standards.
Revenue Streams
ISDB-Tb, DVB and CTTB are key developments in providing broadcasters with new broadcast and broadband revenue streams.
Back Panel

Specifications and designs are subject to change without notice.
| Inputs | |
| Transport Stream | 2 BNC, 75 ohms, configurable as DVB-ASI (DVB-ASI standard EN 50083-9:2002) or SMPTE 310M (SMPTE 310M-2004) for ATSC transport input |
| Ethernet | 2x8-pin modular RJ-45 10/100 management network interface
1x8-pin modular RJ-45 10/100/1000 MH stream/data interface |
| 1 PPS Reference Input | 1 BNC, 50 ohms |
| 10 Mhz Reference Input | 1 BNC, 50 ohms |
| GPS Antenna Input | 1 SMA, 50 ohms |
| Craft Port | 1 RS-232, DB-9F |
| Alarms | 4 relay contacts via DB-9F |
| AC Power Input | 1x90 to 265 V AC, 47 to 63 Hz auto-ranging |
| Outputs | |
| Transport Stream | 2 BNC, 75 ohms, configurable as DVB-ASI (DVB-ASI standard EN 50083-9:2002) or SMPTE 310M (SMPTE 310M-2004) |
| Monitor | 1 BNC, 75 ohms, configurable as DVB-ASI (DVB-ASI standard EN 50083-9:2002) or SMPTE 310M (SMPTE 310M-2004) |
| 1 PPS Reference Output | 1 BNC, 50 ohms |
| Environmental | 32° to 122° F (0° to 50° C), 10 to 90% humidity, non-condensing |
| Altitude | 0 to 9,842 ft (3000 m) RoHS |
| Physical | 19 in. EIA rack standard, 1RU high, 11 in. (28 cm) depth |
| Acoustic Noise | <60 dBA |
| Monitoring and Control | Browser-based user GUI
Front-panel controls Alarm-driven contacts |
| Redundancy | Dual A/153 output streams
Power or equipment failure bypasses MH systems, and the A/53 stream is directed to the output User bypass of MH system |
| Signaling Parameters | Signaling tables and component descriptors supported internally via Synchrony XA or externally third-party device
Transmission parameter channel supported internally via Synchrony XA All other signaling supported externally from third-party device |
| DTS Mode | Operations and maintenance packet structure per A/110 b including:
- Synchronization time stamp (STS) - Maximum delay (MD) - Offset delay (OD) Pilot frequency stability of ±0.5 Hz of nominal Operational support for 2 groups each with up to 32 transmitters per group |