Adva launches grandmaster clock with multi-band GNSS receiver

April 27, 2021  - By
Adva’s OSA 5405-MB provides nanosecond timing at a network's edge. (Photo: Business Wire)

Adva’s OSA 5405-MB provides nanosecond timing at a network’s edge. (Photo: Business Wire)

Adva has launched the OSA 5405-MB, a compact outdoor precision time protocol (PTP) grandmaster clock with multi-band GNSS receiver and integrated antenna.

Part of the OSA 5405 series of smart synchronization devices for indoor or outdoor deployment, the OSA 5405-MB ensures timing accuracy by eliminating the impact of ionospheric delay variation. This empowers communication service providers and enterprises to deliver the nanosecond precision needed for 5G fronthaul and other emerging time-sensitive applications.

The GNSS receiver and antenna enable the OSA 5405-MB to meet PRTC-B accuracy requirements (+/-40 nanosec0nds) even in challenging conditions. For the first time, the technology is available in an edge timing device with minimal footprint, helping operators achieve unprecedented accuracy and reliability as they roll out wide-spread small cell networks.

“Our multi-band, multi-constellation GNSS receiver provides an extremely cost-efficient way to achieve PRTC-B UTC-traceable network timing with the levels of accuracy needed for next-generation use cases,” said Gil Biran, general manager, Oscilloquartz, Adva. “By adding this technology to our versatile, small-form-factor OSA 5405 series, we’re offering a route to precision synchronization at the network access without significant investment.”

“A ruggedized design and minimal visibility make our OSA 5405-MB easy to install in almost any outdoor location,” Biran said.  “With the power to compensate for ionospheric delay variations and resilience against jamming and spoofing, our compact edge solution really is the key to 5G synchronization.”

The OSA 5405 series is a versatile timing solution for deployment deep in urban canyons, where advanced end applications require stringent synchronization. With its small form factor, the OSA 5405-I indoor variant can be positioned on windows to avoid multipath signal interference.

Offering both electrical and optical interfaces and with cost-effective Ethernet cabling, the OSA 5405 series avoids RF feeds of traditional GNSS installations by integrating an antenna, receiver and PTP grandmaster in a single device.

Ionospheric Delays. With multi-band GNSS technology, the OSA 5405-MB also protects against timing inaccuracies caused by ionospheric disturbance. By receiving GNSS signals in two frequency bands and using the differences between them to calculate and compensate for delay variation, the OSA 5405-MB eliminates inaccuracy and ensures ultra-precise synchronization whatever the space weather conditions.

It can work with up to four GNSS constellations concurrently (GPS, Galileo, GLONASS and BeiDou), increasing the number of observable satellites in urban canyons. A comprehensive set of Syncjack PTP and GNSS jamming and spoofing monitoring features in combination with Adva’s Ensemble Controller and Sync Director assures high synchronization quality and provides transparency for simple operation of large synchronization networks.

The OSA 5405-MB also offers network-delivered timing backup to further mitigate GNSS vulnerabilities and make synchronization more robust and resilient.

About the Author: Tracy Cozzens

Senior Editor Tracy Cozzens joined GPS World magazine in 2006. She also is editor of GPS World’s newsletters and the sister website Geospatial Solutions. She has worked in government, for non-profits, and in corporate communications, editing a variety of publications for audiences ranging from federal government contractors to teachers.