SBG -Antenne Ellipse D GNSS Triple Bande avec L-Band -TW3972

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Pixel sur Mer

873-0037

SBG - Antena Ellipse D GNSS trostruke frekvencije s L-Bandom - TW3972

The Tallysman TW3972 antenna, a Pixel sur Mer solution, is a high-precision triple-band GNSS Accutenna® antenna with L-band support.

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465,60€

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Free pickup point from €150 in France
Pickup at Skysat possible

Custom installation

Trust Skysat for onboard equipment installation

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Installers near you

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Technical specifications

Radni napon	2.5 à 16 VDC
Radna temperatura	-40°C à +85°C
Maksimalna električna potrošnja	0.384 W
Tipična električna potrošnja	0.288 W
Širina proizvoda	66 mm
Visina proizvoda	21 mm
Dubina proizvoda	66 mm
IP zaštitni stupanj	IP67
Vrsta montaže	Montage traversant permanent (¾” / 19mm)
Certifikati	IP67, REACH, RoHS, RED, EN45545-2, EN50121, EN50155, EN61373, MIL-STD-810F Section 509.4 (brouillard salin), MIL-STD-810D (vibration/choc)
Podržani GNSS sustavi	GPS L1/L2/L5, GLONASS G1/G2/G3, BeiDou B1/B2/B2a, Galileo E1/E5a+b, NavIC L5, services de correction L-band, SBAS (WAAS, EGNOS, MSAS, GAGAN)
GPS antenski spojnik	Variable (SMA, TNC, MCX, N-Type)
Tip antene	Antenne externe

Detailed description

GNSS antena trostruke frekvencije Tallysman TW3972, koju nudi Pixel sur Mer, namijenjena je za zahtjevne pomorske i kopnene primjene koje zahtijevaju visoku preciznost pozicioniranja. Integrirana tehnologija Accutenna® osigurava proširenu pokrivenost GNSS konstelacija, uključujući GPS L1/L2/L5, GLONASS G1/G2/G3, BeiDou B1/B2/B2a, Galileo E1/E5a+b, NavIC L5, kao i korekcijske usluge L-band i SBAS (WAAS, EGNOS, MSAS, GAGAN). Posebno je prikladna za trofrekventne RTK i PPP prijamnike.

Tehničke performanse i robusnost

TW3972 se odlikuje arhitekturom dvostrukog patcha s dvostrukim kružnim napajanjem, precizno podešenom. Signali dviju ortogonalnih napajanja kombiniraju se i pojačavaju širokopojasnim LNA-om, a potom usko filtriraju za svaku frekvenciju prije ponovnog spajanja. Ovaj dizajn osigurava superiorno odbacivanje višestrukih putanja signala, linearnu faznu reakciju i vrlo nisku varijaciju centra faze (PCV). Pretpojačalo LNA-a ima vrlo nizak šum (< 2,5 dB tipično) i visok pojačanje (37 dB tipično), optimirajući omjer signal/šum. Integriran je robustan predfilter za prigušenje smetnji LTE i mobilnih frekvencija, uključujući Ligado.

Expert review

Pol Conin

Digitalni odgovorni

« Tallysman TW3972 antenna: triple-band GNSS precision for extreme environments »

The Tallysman TW3972 antenna is a critical component for high-precision GNSS systems, particularly in professional maritime and autonomous applications. Its full triple-band support (L1/L2/L5, G1/G2/G3, E1/E5a+b, B1/B2/B2a, L5 NavIC) and L-band correction services ensure compatibility with current and future GNSS constellations, delivering robust and redundant positioning data. This is essential for RTK and PPP solutions where centimeter-level accuracy is required.

The antenna's design, incorporating Accutenna® technology, provides exceptional multipath rejection and very low phase center variation (PCV). These features result in more stable and precise positions in complex environments such as urban areas or near reflective surfaces on vessels. The integrated LTE/cellular interference pre-filter is a significant advantage, preserving signal integrity where other antennas might fail. Its IP67/IP69K rating, combined with MIL-STD and European rail shock, vibration, and salt fog certifications, confirms its suitability for continuous operation in extreme marine conditions.

With consistent performance across a wide voltage range (+2.5 to 16VDC) and low current draw (24 mA typical), the TW3972 simplifies power management. Its standard through-hole mounting and support options (bracket/mast) offer versatile installation possibilities. This antenna is an ideal front-end for high-end inertial navigation systems such as the SBG Ellipse D, providing the raw GNSS data quality required for sensor fusion and precise navigation algorithms, thereby enhancing overall system performance and reliability.

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SBG - Antena Ellipse D GNSS trostruke frekvencije s L-Bandom - TW3972

465,60€

Frequently Asked Questions

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Which GNSS constellations does the TW3972 antenna support?

The Tallysman TW3972 antenna supports a wide range of GNSS constellations and correction services. It covers:

GPS: L1, L2, L5
GLONASS: G1, G2, G3
BeiDou: B1, B2, B2a
Galileo: E1, E5a+b
NavIC: L5

It also supports L-band and SBAS correction services (WAAS, EGNOS, MSAS, GAGAN).
The antenna is specifically designed for triple-frequency precision positioning.

What type of mounting is recommended for the TW3972 antenna?

The TW3972 antenna is designed for permanent installation via a ¾” (19mm) through-mount. For installations not on a roof, a 100mm ground plane is recommended.

Optional mounts, such as an L-bracket (part number 23-0040-0) or a pipe mount (part number 23-0065-0), are also available for alternative mounting options.

Is the TW3972 antenna weatherproof?

Yes, the TW3972 antenna is housed in a sealed and rugged enclosure that meets strict environmental standards. It has an IP67 rating, making it resistant to water and dust. It is designed to operate across a wide temperature range, from -40°C to +85°C.

Additionally, it complies with RoHS, RED, and REACH standards and has passed tests for salt mist resistance (MIL-STD-810F Section 509.4), shock resistance (50 G vertical axis, 30 G other axes), and vibration resistance (3 axes, 3 G).

What are the power supply specifications for the TW3972 antenna?

The TW3972 antenna operates on a supply voltage range of +2.5 to 16 VDC (nominal, up to 50 mV peak-to-peak ripple). Current draw is typically 24 mA at 25°C. It also features electrostatic discharge (ESD) protection rated at 15 kV (air discharge).

Is the TW3972 antenna compatible with RTK receivers?

Yes, the TW3972 antenna is specifically designed for high-precision positioning applications. It is ideal for triple-frequency RTK (Real-Time Kinematic) receivers as well as PPP (Precise Point Positioning) systems, delivering high accuracy for demanding applications such as precision agriculture or autonomous vehicle guidance.

How does the TW3972 antenna handle interference from external signals?

The TW3972 antenna is equipped with an integrated robust pre-filter. This filter is designed to attenuate interference from intermodulated signals originating from LTE bands and other cellular bands, including those from Ligado, thereby ensuring better GNSS signal integrity.

What are the dimensions and weight of the TW3972 antenna?

The TW3972 antenna has mechanical dimensions of 66 mm x 21 mm. Its weight is 185 grams. It is recommended to use a 100 mm ground plane for installations that are not on a roof.

What are the advantages of the Accutenna® technology used in this antenna?

Tallysman's Accutenna® technology, integrated into the TW3972 antenna, offers several key advantages for high-precision positioning:

Superior rejection of multi-path signals, reducing errors caused by signal reflections.Linear phase response.Very low phase center variation (PCV), contributing to better system accuracy.Low axial ratio (typically below 1.5 dB), ensuring excellent reception of circularly polarized signals.

Is a ground plane required for installing the TW3972 antenna?

Yes, a 100 mm ground plane is recommended for TW3972 antenna installations that are not mounted on a roof (non-rooftop installations).

What is the gain of the LNA (low-noise amplifier) in the TW3972 antenna?

The TW3972 antenna is equipped with an LNA (Low Noise Amplifier) with a typical gain of 37 dB. Its preamplifier exhibits very low noise, generally below 2.5 dB.

Is the TW3972 antenna shock and vibration resistant?

Yes, the TW3972 antenna is designed to withstand shocks and vibrations. It complies with MIL-STD-810D for vibrations and shocks, with a resistance of 50 G on the vertical axis and 30 G on the other axes for shocks, and a resistance of 3 G for vibrations on 3 axes with a sweep from 10 to 200 Hz.

For which precision applications is the TW3972 antenna particularly suited?

The TW3972 antenna is particularly suited to demanding applications requiring high positioning accuracy. This includes notably:

Precision agricultureVehicle tracking and autonomous guidanceMilitary and security applicationsTriple-frequency RTK surveying systems

Are there specific mounting accessories for the TW3972 antenna?

Yes, for installations not on a roof, mounting accessories are available. These include an L-bracket (reference 23-0040-0) or a pipe mount (reference 23-0065-0).

Is the TW3972 antenna compliant with specific environmental standards?

Yes, the TW3972 antenna is compliant with several environmental standards. It is RoHS, RED, and REACH certified. Additionally, its housing is waterproof and compliant with IP67 and IP69K standards.