CR8894PXF+ Anti-Jam Four Element Controlled Reception Pattern Antenna (CRPA)

Calian’s CR8894PXF+ GNSS Controlled Reception Pattern Antenna (CRPA) can mitigate/null 1 or 3 (configurable) interference or jamming signals in both the lower (1189 – 1254 MHz) and upper (1559 – 1591 MHz) GNSS bands for a total of two (2) or six (6) nulls. The CR8894PXF+ is a 4-element CRPA designed for dual-band Global Navigation Satellite System (GNSS) signal reception. It supports GPS L1/L2, Galileo E1/E5b, GLONASS G2/G3, and BeiDou B1/B2b signal bands. The wide bandwidth antenna elements also support GPS M-Codes on both L1 and L2.

Interference or jamming can saturate a standard GNSS antenna’s Low Noise Amplifier (LNA), making it unusable. Calian’s CR8894SXF+ uses two interference-mitigating technologies: eXtended Filtering+ (XF+) and a Controlled Reception Pattern Antenna. XF+ features > 80 dB of out-of-band rejection from 400 MHz to 3000 MHz and separates the LNA’s upper and lower signal amplification channels, if one channel is jammed the other remains usable. CRPA technology creates radiation pattern nulls in the direction of the interference/jammer, preventing LNA saturation and ensuring a usable GNSS signal. The output is a standard RF signal with the interference removed and a signal that is compatible with all Commercial Off The Shelf (COTS) GNSS receivers. The CR8894SXF+ also incorporates marine filtering where Iridium and Inmarsat signals from 1616 to 1660 MHz are rejected.

The CR8894SXF+ uses Tallysman Accutenna® technology and a low-power analog interference detection and mitigation methodology. It integrates the antenna, null-forming, and interference mitigation technology into a compact, lightweight surface-mount enclosure. Two serial interfaces are provided: one supports RS232, the other RS422. These interfaces output NMEA messages that contain jamming detection, mitigation status, jammer band, and direction relative to the antenna, enhancing situational awareness.

The lightweight, waterproof (IP69K) rugged enclosure withstands harsh conditions including marine, and land-based, jamming detection applications. The CR8894PXF+ CRPA is a pole mount antenna specially designed with marine and land-based environments in mind, supporting 5/8″-11 TPI or 1″-14 TPI inserts. A standard RF connector (TNC or N-Type) and serial interface connectors are provided, properly sealed to prevent water ingression.

HC976SXF Multi-Constellation Triple-Band Antenna

The patented HC976SXF helical antenna is designed for precision positioning, covering the GPS/QZSS-L1/L2, QZSS-L6, GLONASS-G1/G2, Galileo-E1/E6, and BeiDou-B1/B3 frequency bands, including the satellite-based augmentation system (SBAS) available in the region of operation [WAAS (North America), EGNOS (Europe), MSAS (Japan), or GAGAN (India)], as well as L-Band correction services.

Weighing only 32 g, the light and compact HC976SXF features the 2nd generation Tallysman precision-tuned helix element that provides excellent axial ratios and operates without the requirement of a ground plane, making it ideal for a wide variety of applications, including unmanned aerial vehicles (UAVs). The miniaturized 2nd generational helical element is about 25% lighter and 20%(1 cm) shorter than the first generational helical, without compromising on performance such as peak gain at zenith, low roll-off, and bandwidth.

The HC976SXF features an industry-leading low current, low-noise amplifier (LNA) that includes an integrated low-loss pre-filter. eXtended Filtering was added to the HC976 antenna to mitigate new radio frequency bands that interfere with GNSS signals. For example, new LTE bands have been activated, and their signal or harmonic frequencies can affect GNSS antennas and receivers. In North America, the planned Ligado service, which will broadcast in the frequency range of 1526 to 1536 MHz, can affect GNSS antennas that receive space-based L-band correction service signals (1539 – 1559 MHz). Similarly, new LTE signals in Europe [Band 32 (1452 – 1496 MHz)] and Japan [Bands 11 and 21 (1476 – 1511 MHz)] have also affected GNSS signals. Lastly, the Inmarsat satellite communication uplink (1626.5 – 1660.5 MHz), commonly used on maritime vessels, can also affect nearby GNSS antennas.

Field tests have confirmed that Calian’s custom XF technology mitigates the new (Europe and Japan) and existing LTE signals, enabling the XF antenna to produce clean and pure GNSS radio frequency data.

Calian’s 2nd generation housed helical antenna elements are protected by a robust military-grade IP67 plastic enclosure. The enclosure’s base provides two threaded inserts for secure attachment, as well as a rubber O-ring around the outer edge to seal the antenna base and its integrated male SMA connector.

AJ979XF+ MAR Anti-Jam Multi-Constellation Full-Band Antenna

The AJ979XF+ MAR supports GPS/QZSS-L1/L2/L5/L6, GLONASS-G1/G2/G3, Galileo-E1/E5a/E5b/E6, BeiDou-B1/B2b/B2a/B3, and NavIC-L5 frequency bands, including the satellite-based augmentation system (SBAS) available in the region of operation [WAAS (North America), EGNOS (Europe), MSAS (Japan), or GAGAN (India)].

The AJ979XF+ MAR Anti-Jam antenna is designed to mitigate interference and jamming signals broadcast from near ground-based transmitters. The radiation pattern of the Low Elevation Angle Nulling Antenna (LEANA) provides 20 dB (typical) wideband suppression for all GNSS band signals received at an elevation angle of 0° through to approximately 15°. This level of attenuation was demonstrated to mitigate jamming signal broadcasts at an elevation angle of 10° such that the AJ979XF+ MAR can be up to 10 times closer, compared to a standard HC977XF helical antenna, to the source of interference without being jammed. The combination of Calian’s low elevation angle nulling radiation pattern and eXtended Filtering (deep filtering and high linearity) technologies provides a one-two punch to jamming and RF noise. At the same time, the AJ979XF+ MAR’s radiation pattern above 20° elevation angle provides excellent gain and a phase center that supports accurate and precise positioning.

Calian’s eXtended Filtering+ (XF+) technology features > 80 dB of out-of-band rejection from 700MHz to 2500MHz and separates the LNA’s upper and lower signal amplification channels; if one channel is jammed the other remains usable. In North America, Ligado signals at 1525 – 1536 MHz can especially impact GNSS antennas that support space-based L-band correction services (1539 – 1559 MHz). New LTE signals in Europe [Band 32 (1452 – 1496 MHz)] and Japan [Bands 11 and 21 (1476 – 1511 MHz)] have also been observed to interfere with GNSS signals. In addition, Inmarsat satellite communication (uplink: 1626.5 – 1660.5 MHz) can also affect GNSS signals, and the AJ979XF+ MAR provides strong rejection of marine L-band interference sources including Iridium and Inmarsat signals from 1616 to 1660 MHz, supporting reliable GNSS performance in challenging maritime RF environments.

The Calian AJ979XF+ MAR antenna is ideal for all mission critical positioning, navigation and timing applications.

AJ977XF+ Anti-Jam Multi-Constellation Triple-Band Antenna

The AJ977XF+ supports GPS/QZSS-L1/L2/L5, GLONASS-G1/G2/G3, Galileo-E1/E5a/E5b, BeiDou-B1/B2b/B2a, and NavIC-L5 frequency bands, including the satellite-based augmentation system (SBAS) available in the region of operation [WAAS (North America), EGNOS (Europe), MSAS (Japan), or GAGAN (India)].

The AJ977XF+ Anti Jam antenna is designed to mitigate interference and jamming signals broadcast from near ground-based transmitters. The radiation pattern of the Low Elevation Angle Nulling Antenna (LEANA) provides 20 dB (typical) wideband suppression for all GNSS band signals received at an elevation angle of 0° through to approximately 15°. This level of attenuation was demonstrated to mitigate jamming signal broadcasts at an elevation angle of 10° such that the AJ977XF+ can be up to 10 times closer, compared to a standard HC977XF helical antenna, to the source of interference without being jammed. The combination of Calian’s low elevation angle nulling radiation pattern and eXtended Filtering (deep filtering and high linearity) technologies provides a one-two punch to jamming and RF noise. At the same time the AJ977XF+’s radiation pattern above 20° elevation angle provides excellent gain and a phase center that supports accurate and precise positioning.

Calian’s eXtended Filtering+ (XF+) technology features > 80 dB of out-of-band rejection from 700MHz to 2500MHz and separates the LNA’s upper and lower signal amplification channels; if one is channel is jammed the other remains usable. In North America, Ligado signals at 1525 – 1536 MHz can especially impact GNSS antennas that support space-based L-band correction services (1539 – 1559 MHz). New LTE signals in Europe [Band 32 (1452 – 1496 MHz)] and Japan [Bands 11 and 21 (1476 – 1511 MHz)] have also been observed to interfere with GNSS signals. In addition, Inmarsat satellite communication (uplink: 1626.5 -1660.5 MHz) can also affect GNSS signals. Calian’s custom XF filtering mitigates all existing signals and new Ligado and LTE signals, enabling the antennas and attached GNSS receivers to perform optimally.

The Tallysman AJ977XF+ antenna is ideal of all mission critical positioning, navigation and timing applications.

HC976P Multi-Constellation Triple-Band Passive Antenna

The patented HC976P helical antenna is designed for precision positioning, covering the GPS/QZSS-L1/L2, QZSS-L6, GLONASS-G1/G2, Galileo-E1/E6, and BeiDou-B1/B3 frequency bands, including the satellite-based augmentation system (SBAS) available in the region of operation [WAAS (North America), EGNOS (Europe), MSAS (Japan), or GAGAN (India)], as well as L-Band correction services.

Weighing only 42 g, the light and compact HC976P features a precision-tuned helix element that provides excellent axial ratios and operates without the requirement of a ground plane, making it ideal for a wide variety of applications, including unmanned aerial vehicles (UAVs).

All Tallysman housed helical antenna elements are protected by a robust military-grade IP69K-compliant plastic enclosure. The enclosure’s base provides two threaded inserts for secure attachment, as well as a rubber O-ring around the outer edge to seal the antenna base and its integrated male SMA connector.

Calian’s helical family has passed a rigorous 30-hour vibration test procedure, consisting of five cycles of 2-hour tests per axis (x, y, z):

• Cycle 1: 1.05 Grms;
• Cycle 2: 1.20 Grms;
• Cycle 3: 1.35 Grms;
• Cycle 4: 3.67 Grms;
• Cycle 5: 3.67 Grms.

For mounting instructions, visit: https://www.tallysman.com/downloads/Helical_Mounting_Instruction.pdf

TW7929 Multi-Constellation Low-Power Triple-Band Antenna

The TW7929 is a precision-tuned Accutenna® technology antenna supporting triple-band GPS/QZSS-L1/L2/L5, GLONASS-G1/G2/G3, Galileo-E1/E5a/E5b, BeiDou-B1/B2b/B2a, NavIC-L5, including the satellite-based augmentation system (SBAS) available in the region of operation [WAAS (North America), EGNOS (Europe), MSAS (Japan), or GAGAN (India)], plus L-Band correction services coverage, and is especially designed for precision triple-frequency positioning.

This antenna is ideal for precision agriculture, autonomous vehicle tracking and guidance, and other applications where precision matters.

The TW7929 features a dual-feed circular stacked patch element. The signals from the two orthogonal feeds are summed in quadrature, pre-filtered in a low loss filter to protect against a wide range of potentially interfering signals, amplified in high linearity, wideband LNA, then band-split, tightly filtered and amplified prior to signal recombination at the output.

This antenna provides superior multipath rejection and axial ratio, a linear phase response, and tight phase centre variation (PCV), while protecting against intermodulation and saturation caused by high-level LTE 700 MHz signals.

The TW7929 is housed in a magnetic mounted, IP67 weatherproof enclosure. A 100 mm diamter ground plane is recommended for optimal antenna performance.

This antenna is also available in an embedded OEM format (TW3929E), and a through-hole housed version (TW3929).

TW7972RXF Multi-Constellation Triple-Band Rugged Antenna

The TW7972RXF is a surface-mount triple-band Accutenna® technology antenna providing coverage for GPS/QZSS-L1/L2/L5, GLONASS-G1/G2/G3, Galileo-E1/E5a/E5b, BeiDou-B1/B2a/B2b, NavIC-L5, and the satellite-based augmentation systems (SBAS) available in the region of operation [WAAS (North America), EGNOS (Europe), MSAS (Japan), or GAGAN (India)], plus L-Band correction services. It is especially designed for precision triple-frequency positioning.

The radio frequency spectrum has become increasingly congested as new LTE bands are activated, and their signals or harmonic frequencies [e.g. 800 MHz × 2 = 1600 MHz (GLONASS-G1)] can interfere with GNSS antennas and receivers. In North America, planned Ligado signals at 1525–1536 MHz can especially impact GNSS antennas that support space-based L-Band correction services (1539–1559 MHz). New LTE signals in Europe [Band 32 (1452–1496 MHz)] and Japan [Bands 11 and 21 (1476–1511 MHz)] have also been observed to interfere with GNSS signals. In addition, Inmarsat satellite communication (uplink: 1626.5–1660.5 MHz) can affect GNSS performance. The new Tallysman XF antennas have been designed to mitigate out-of-band signals and prevent GNSS antenna saturation. Calian’s custom XF filtering suppresses all existing signals as well as the new Ligado and LTE signals, enabling the antennas and attached GNSS receivers to perform optimally.

This antenna is ideal for precision agriculture, autonomous vehicle tracking and guidance, and other applications where precision matters. The TW7972RXF provides superior multipath signal rejection, a linear phase response, and tight phase centre variation (PCV).

The TW7972RXF also provides excellent axial ratio, a linear phase response, and tight PCV, while protecting against intermodulation and saturation caused by high-level LTE 700 MHz signals. It is housed in a rugged, IP67 weatherproof enclosure and is available in magnetic, adhesive, and screw-mount configurations. A 100 mm diameter ground plane is recommended for optimal performance.

HC3990XF Multi-Constellation Full-Band Antenna

The HC3990XF eXtended-filter low-profile helical antenna, packaged in the TW3000 base, is designed for precision positioning, covering the GPS/QZSS-L1/L2/L5, QZSS-L6, GLONASS-G1/G2/G3, Galileo-E1/E5a/E5b/E6, BeiDou-B1/B2/B2a/B3, and NavIC-L5 frequency bands, including the satellite-based augmentation system (SBAS) available in the region of operation [WAAS (North America), EGNOS (Europe), MSAS (Japan), or GAGAN (India)], as well as L-band correction services.

The HC3990XF utilizes Calian’s latest wideband helical element design. Optimal performance is achieved without the requirement of a ground plane. The antenna element provides 67 MHz of signal bandwidth supporting the entire upper GNSS band and L-Band corrections (1539 – 1606 MHz) and 136 MHz of the lower band signal bandwidth (1164 – 1300 MHz). The other key component of the antenna is the axial ratio, which is a measure of how well the antenna captures the broadcast Right Hand Circular Polarized (RHCP) signal and mitigates the reflected LHCP signals. The HC3990XF has a high peak gain and low axial ratio at zenith, enabling excellent multipath mitigation and a very precise phase centre.

Weighing only 105 g, the light and compact HC3990XF features a precision-tuned helix element that provides excellent axial ratios and operates without the requirement of a ground plane, making it ideal for a wide variety of applications, including unmanned aerial vehicles (UAVs).

The HC3990XF antenna supports Calian’s eXtended Filtering (XF) technology. Worldwide the radio frequency spectrum has become congested as many new LTE bands have been activated, and their signals or harmonic frequencies can affect GNSS antennas and receivers. In North America, the planned Ligado service, which will broadcast in the frequency range of 1526 to 1536 MHz, can affect GNSS signals. Similarly, new LTE signals in Europe [Band 32 (1452 –1496 MHz)] and Japan [Bands 11 and 21 (1476 – 1511 MHz)] have also affected GNSS signals. Calian’s XF technology mitigates all these signals.

The HC3990XF is housed in a through-hole mount, weatherproof enclosure for permanent installations. L-bracket (PN 23-0040-0) or pipe mount (23-0065-0) accessories are available.

TW5398 Smart GNSS Antenna; High Precision Full Band; u-blox ZED-X20P 

The TW5398 is a multi-band (L1/L2/L5/L6), multi-constellation integrated GNSS receiver/antenna with RTK, PointPerfect®-Flex (PPP-RTK) augmentation. The TW5398 is capable of providing sub 1.2 meter accuracy stand-alone, sub 6 cm accuracy with PPP-RTK and sub 1 cm with RTK corrections (service or localized). TW5398 also authenticates Galileo OSNMA anti-spoofing messages. TW5398 can be configured to act as a base or rover for RTK operation. 

AC4990TXF Multi-Constellation Full-Band Precision GNSS Antenna

The AC4990TXF is a precision-tuned multi-constellation, full-band Accutenna® 4 technology antenna. Supported constellations and signals are, GPS/QZSS-L1/L2/L5 QZSS-L6, GLONASS-G1/G2/G3, Galileo-E1/E5a/E5b/E6, BeiDou-B1/B2/B2a/B3, NavIC-L5, including the satellite- based augmentation system (SBAS) available in the region of operation [WAAS (North America), EGNOS (Europe), MSAS (Japan), or GAGAN (India)], plus L-band Corrections.

The AC4990TXF features a precision-tuned, twin circular quad-feed, stacked patch element. The signals from the four orthogonal feeds are combined though a feed network, amplified in a wideband LNA, then band-split for narrow filtering in each band and further amplified prior to recombination at the output. The AC4990TXF quad-feed Accutenna® 4 technology enables an excellent axial ratio (strongly mitigating multipath) and a tightly grouped phase centre variation (≤ 2 mm from zenith to 15° above horizon). It is ideal for surveying, autonomous vehicle tracking and guidance, precision agriculture, and other applications where precision matters.

The radio frequency spectrum has become more congested as new LTE bands are activated and their signals or harmonic frequencies [e.g. 800MHz x 2 = 1600MHz (GLONASS-G1)] can affect GNSS antennas and receivers. In North America, planned Ligado signals at 1525 – 1536 MHz can especially impact GNSS antennas that support space-based L-band Corrections (1539 – 1559 MHz). New LTE signals in Europe [Band 32 (1452 – 1496 MHz)] and Japan [Bands 11 and 21 (1476 – 1511 MHz)] have also been observed to interfere with GNSS signals. In addition, Inmarsat satellite communication (uplink: 1626.5 – 1660.5 MHz) can also affect GNSS signals. The new Calian XF antennas have been designed to mitigate out-of- band signals and prevent GNSS antenna saturation. Calian’s custom XF filtering mitigates all existing signals and new Ligado and LTE signals, enabling the antennas and attached GNSS receivers to perform optimally.

The housed AC4990TXF has a rugged through-hole metallic base, and a weatherproof enclosure for permanent installations.