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 banda triple amb L-Band - 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€

IVA inclòs Expedició calculada en el moment del pagament.

En estoc

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

Custom installation

Trust Skysat to install the equipment on board

Request a quote

Installers near you

through our network of certified installers

Find an installer

Service d'assistance

Choose additional assistance for installation

Technical specifications

Tensió de funcionament	2.5 à 16 VDC
Temperatura de funcionament	-40°C à +85°C
Consum elèctric màxim	0.384 W
Consum elèctric típic	0.288 W
Amplada del producte	66 mm
Alçada del producte	21 mm
Fondària del producte	66 mm
Grau de protecció IP	IP67
Tipus de muntatge	Montage traversant permanent (¾” / 19mm)
Certificacions	IP67, REACH, RoHS, RED, EN45545-2, EN50121, EN50155, EN61373, MIL-STD-810F Section 509.4 (brouillard salin), MIL-STD-810D (vibration/choc)
Sistemes GNSS suportats	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)
Connectador d'antena GPS	Variable (SMA, TNC, MCX, N-Type)
Tipus d'antena	Antenne externe

Detailed description

L'antena GNSS de banda triple Tallysman TW3972, proposada per Pixel sur Mer, està dissenyada per a aplicacions marítimes i terrestres exigents que requereixen una alta precisió de posicionament. Incorpora la tecnologia Accutenna®, que garanteix una cobertura estesa de les constel·lacions GNSS, incloent-hi GPS L1/L2/L5, GLONASS G1/G2/G3, BeiDou B1/B2/B2a, Galileo E1/E5a+b, NavIC L5, així com els serveis de correcció L-band i SBAS (WAAS, EGNOS, MSAS, GAGAN). Està especialment adaptada per a receptors RTK i PPP de triple freqüència.

Prestacions tècniques i robustesa

La TW3972 destaca per la seva arquitectura de patch doble apilat amb doble alimentació circular, ajustada amb precisió. Els senyals de les dues alimentacions ortogonals es combinen i amplifiquen mitjançant un LNA de banda ampla, i després es filtren estretament per a cada banda abans de la recombinació. Aquesta configuració assegura una rebuig superior dels senyals multi-trajecte, una resposta de fase lineal i una variació del centre de fase (PCV) molt baixa. El preamplificador del LNA presenta un soroll molt baix (< 2,5 dB típic) i un guany elevat (37 dB típic), optimitzant la relació senyal/soroll. Un prefiltre robust s'integra per atenuar les interferències de les bandes LTE i cel·lulars, incloent-hi Ligado.

Expert review

Pol CONIN

Responsable digital

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

The Tallysman TW3972 antenna is a key component for high-precision GNSS systems, particularly in professional and autonomous maritime 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 feature is critical 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 advantages 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 benefit, preserving signal integrity where other antennas may fail. Its IP67/IP69K rating, combined with MIL-STD and European railway certifications for shock, vibration, and salt fog resistance, 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 banda triple amb L-Band - TW3972

465,60€

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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, L5GLONASS: G1, G2, G3BeiDou: B1, B2, B2aGalileo: E1, E5a+bNavIC: L5As well as L-band and SBAS correction services (WAAS, EGNOS, MSAS, GAGAN).It 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 ground plane of 100mm 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 weather-resistant?

Yes, the TW3972 antenna is housed in a watertight and robust casing, compliant with strict environmental standards. It has an IP67 certification, making it resistant to water and dust. It is designed to operate within a wide temperature range, from -40°C to +85°C.

Additionally, it complies with RoHS, RED, and REACH standards, and has passed salt mist resistance tests (MIL-STD-810F Section 509.4), shock tests (50 G vertical axis, 30 G other axes), and vibration tests (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 50mV peak-to-peak ripple). Current consumption is typically 24 mA at 25°C. It also includes 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, providing 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 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. A 100 mm ground plane is recommended for installations not mounted 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 multipath signals, reducing errors caused by signal reflections.Linear phase response.Very low phase centre 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 the installation of the TW3972 antenna?

Yes, a 100 mm ground plane is recommended for TW3972 antenna installations that are not performed 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 has 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 vibration and shock resistance, 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 in particular:

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

Are there specific mounting accessories for the TW3972 antenna?

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