UTC
--:--:--
GPS
--:--:--
LORAN
--:--:--
TAI
--:--:--
LOCAL
--:--:--

We design time reference systems.

GPS timing and frequency

Synchronization products (GPS antennas, NTP servers, time and frequency systems) developed to achieve maximum performance even in hostile environments.

Signal Distribution

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Configurations and interconnections

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Time and Frequency synchronization

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NTP Server

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Antennas

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Accessories

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In depth

Synchronization in DVB-T2 and DAB SFN Networks: The Critical Role of GPS and Time Reference Technologies

Single Frequency Network (SFN) technology is fundamental to digital terrestrial broadcasting (DVB-T2) and digital radio (DAB), enabling multiple transmitters to operate on the same frequency without generating interference. The success of this architecture critically depends on the ability to maintain extremely precise time and frequency synchronization across all transmission sites. This article examines in detail the role of GPS/GNSS as the primary reference, the limitations of alternative technologies such as NTP, the capabilities of the PTP protocol (IEEE 1588v2), and the importance of holdover mechanisms in ensuring system resilience.

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Time synchronization: from single constellation to multi-source consensus

In modern telecommunications systems from digital terrestrial broadcasting to 5G broadcast networks, from metrology laboratories to distributed test equipment, time synchronization is not a detail: it is the condition that allows the system to exist.

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Standard of time definition

A lot of the current technology to work properly requires a very precise definition of the time. Typically this time is maintained by specific atomic clocks and has a satellite distribution. There are many standard definitions of the time, but the main four are: UTC, GPS, LORAN and TAI.

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