TW5350/TW5351 Multi-Constellation Smart GNSS Timing Antenna

One company—a big mission

A talented workforce of 4,500 people around the globe 

With competitive price and timely delivery, mide sincerely hope to be your supplier and partner.

For more than 40 years, Calian has been solving the world’s most complex problems by pairing the brightest minds with powerful technology. Calian’s innovative solutions move the world forward—from the satellites in space that power our communications to the farms that grow our food, the medical professionals, hospitals and clinics that take care of us, and the governments, schools and private companies that make the world better every day.

Learn more about Calian

GNSS and GPS modules are either transmitters that have antennas or receivers that do not, and they are both all-in-one modules that can be integrated into wireless devices with minimal effort. GNSS and GPS modules that come with an antenna use a LNA (low noise amplifier) and a SAW (surface acoustic wave) filter to help boost performance.

GNSS and GPS modules contain all the components, RF circuitry and antennas needed to connect to GPS and GNSS satellites. Modules receive timestamp data to ascertain the location of a device–all in an easy-to-integrate, compact format.

GNSS (Global Navigation Satellite System) describes the various satellite constellations used around the world such as GPS, GLONASS and Galileo. GNSS receivers use signals from multiple satellites in any of these constellations and use trilateration for pinpoint accuracy. GPS (Global Positioning System) refers to a specific type of GNSS which was developed in the s as the world’s first satellite constellation for navigation. GPS receivers use satellites that are from that specific constellation rather than others like with GNSS.

GNSS and GPS modules are used in navigation, positioning and timing applications such as personal navigation and asset tracking due to their precise locational properties. Through transmissions received from multiple satellites GNSS/GPS offers reliable reception in locations all over the world. Understanding how GNSS/GPS modules are integrated and perform is paramount to choosing the right module for specific applications.

The company is the world’s best GPS smart timing antenna supplier. We are your one-stop shop for all needs. Our staff are highly-specialized and will help you find the product you need.

How do GNSS and GPS modules operate?

GNSS and GPS modules acquire signals from multiple satellites (at least four) to provide a position fix. Satellite signals are significantly weaker when compared to other wireless technologies like cellular and Wi-Fi, so performance is critical for GNSS/GPS modules in order to ensure accuracy.

The most significant measurement of GNSS performance for modules is TTFF (time-to-first-fix). TTFF is the amount of time it takes for the module to obtain a position fix after powering up from receiving a satellite signal. TTFF is usually separated into three scenarios: hot, warm and cold. Hot is typically when the TTFF is no higher than 1 second with rapid acquisition of satellite signals. Warm has a TTFF of 25 seconds or shorter, whereas cold is typically 35 seconds or lower.

The performance measurement for GNSS/GPS modules is important as a lower TTFF is needed to maintain manageable levels of power consumption, which is a common obstacle in satellite communications.

How can you increase battery life using GNSS?

GNSS/GPS reception consumes more power when compared to other wireless communications as the satellite signals are significantly weaker. The radio channel between the satellite and module is fairly slow at a data rate of 50 bits per second. The longer the TTFF measurement, the more power is consumed; a strong signal can take a few seconds whereas a weak signal can take over half a minute.

The antennas within GNSS/GPS modules can be tuned by means of a tuning circuit (Pi Network) to increase the antenna’s ability to receive the GNSS/GPS signal. As the satellite signal is so weak, the module allows the antenna to be tuned to reduce TTFF without being affected by other device components. Antenova’s GNSS/GPS modules are optimised to maximise performance and provide a stable connection without negatively impacting power consumption.

If you are looking for more details, kindly visit GPS timing antenna.