33-7972-00-3000

## TW7972 

## Multi-Constellation Triple-Band Antenna 

**Frequency Coverage:** GPS L1, L2, L5 | GALILEO E1, E5a, E5b | BEIDOU B1, B2a, B2b | GLONASS G1, G2, G3 | NavIC L5 + L-Band 

The TW7972 is a precision-tuned Accutenna® technology antenna supporting triple-band GPS/QZSS-L1/L2/L5, GLONASS-G1/G2/G3, Galileo-E1/E5a/E5b, BeiDouB1/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 triplefrequency positioning. 

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

The TW7972 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 TW7972 is housed in a magnetic mounted, IP67 weatherproof enclosure. A 100 mm diamter ground plane is recommended for optimal antenna performance. 

## Applications 

- Autonomous vehicle tracking and guidance 

- Positive Train Control (PTC) 

- Positive Train Location (PTL) 

- Precision GNSS positioning 

- Precision agriculture 

## Features 

- Very low noise preamp (< 2.5 dB typ.) 

- Low axial ratio  (< 2.0 dB typ.) 

- Tight phase centre variation 

- High-gain LNA (32 dB typ.) 

- Low current (24 mA typ.) 

## Benefits 

   - Excellent multipath rejection 

   - Increased system accuracy 

   - Excellent signal-to-noise ratio 

- Triple-frequency RTK and PPP receivers • ESD circuit protection (15 kV) 

- Law enforcement and public safety 

- Invariant performance from 2.5 to 16 VDC 

- IP67, REACH, and RoHS compliant 

About Calian: With global headquarters and manufacturing in Ottawa, Canada, Calian is a leading manufacturer of highprecision antennas and components for Global Navigation Satellite System (GNSS) applications. Calian’s mission is to support the needs of a new generation of positioning systems by delivering unprecedented antenna precision at competitive prices. Learn more at www.calian.com 

Contact us: info@tallysman.com T: +1 613 591-3131 

## Multi-Constellation Triple-Band Antenna 

**Frequency Coverage:** GPS L1, L2, L5 | GALILEO E1, E5a, E5b | BEIDOU B1, B2a, B2b | GLONASS G1, G2, G3 | NavIC L5 + L-Band 

Antenna - Measured with a 100 mm ground plane Technology Dual-feed Stacked RHCP ceramic patch 

||Gain<br>Axial Ratio|
|---|---|
||dBic typ. at Zenith<br>dB at Zenith|
|GNSS||
||L1<br>4.0<br>< 1.0<br>~~ee~~|
|GPS / QZSS|L2<br>4.0<br>< 1.5<br>~~ee~~|
||L5<br>G1<br>-1.5<br>< 2.0<br>< 1.5<br>2.5<br>~~are~~|
|GLONASS|G2<br>2.5<br>< 2.0<br>~~a eee~~|
|G3<br>E1<br>E5A<br>E5B<br>E6<br>B1<br>B2b<br>B2a<br>B3<br>L5<br>L6<br>Satellite Communications<br>2.5<br>IRNSS / NavIC<br>-1.5<br>< 2.0<br>< 1.5<br>-1.5<br>< 2.0<br>-<br>-<br>3.5<br>< 1.0<br>BeiDou<br>4.0<br>< 1.0<br>< 2.0<br>2.5<br>< 2.0<br>Galileo<br>4.0<br>< 1.0<br>-1.5<br>< 2.0<br>-<br>-<br>2.5<br>QZSS<br>-<br>-<br>L-Band Services (1525 MHz - 1559 MHz)<br>~~ee~~<br>~~a rr~~<br>~~aa~~<br>~~a~~<br>~~ee ~~~~**e**ee~~<br>~~a e~~<br>~~a ee ee~~<br>~~a ee~~<br>~~a ee~~<br>~~eee~~<br>~~a ee~~<br>~~ee~~<br>~~ee~~<br>~~ee~~<br>~~ee~~<br>~~ee~~<br>~~re~~<br>~~ee~~<br>~~ee~~||
|Iridium|-<br>-|
|Globalstar<br>Other|-<br>-<br>~~a~~<br>~~ee~~|
|PC Variation<br>Axial Ratio at 10°<br>~~a~~<br>~~a~~|± 10 mm<br>-<br>-<br>-<br>-<br>Efficiency<br>~~es~~<br>~~es ee~~|
|Mechanicals||
|Size|69 mm (dia.) x 22 mm (h.)|
|Weight|180 g|
|Radome|LEXAN™ EXL9330, Base: Zamac Metal|
|Mount|Magnetic|
|Available Connectors<br>See Ordering Guide||
|Environmental||
|Operating Temperature<br>-40 °C to +85 °C||
|Storage Temperature<br>-50 °C to 105 °C||
|Vibration|MIL-STD-810-E - Test Method 514.5|
|Shock|MIL-STD-810G Method 516.6|
|Salt Fog|MIL-STD-810-F - Test Method 509.5|
|IP Rating|IP67|
|Compliance|IPC-A-610, FCC, RED / CE Mark, RoHS, REACH|
|Warranty||
|Parts and Labour|3-year standard warranty|



Low Noise Amplifier (LNA) **- Measured at 3V and 25** ° **C** 

|Frequency Bandwith|Frequency Bandwith||Out of Band Rejection|
|---|---|---|---|
||||≥ 45 dB @ ≤ 1050 MHz|
|Lower Band|1164 - 1254 MHz||≥ 30 dB @ ≤ 1125 MHz|
||||≥ 35 dB @ ≥ 1350 MHz|
|L-Band Corr.|1539 - 1559 MHz|||
||||≥ 30 dB @ ≤ 1450 MHz|
||||≥ 30 dB @ ≥ 1690 MHz|
|Upper Band|1559 - 1606 MHz||≥ 40 dB @ ≥ 1730 MHz|
|Architecture||Pre-filtered||
|Gain||32 dB typ.||
|Noise Figure||2.5 dB typ.||
|VSWR||< 1.5:1 typ., 1.8:1 max||
|Supply Voltage Range||2.5 to 16 VDC nominal, up to 50mV p-p ripple|2.5 to 16 VDC nominal, up to 50mV p-p ripple|
|Supply Current||24 mA typ., 25 mA max.||
|ESD Circuit Protection||15 kV air discharge||
|P 1dB Output||11 dBm typ.||
|Group Delay||-||
|PCO||-||



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Please refer to our Ordering Guide to review available radomes and connectors at: https://www.tallysman.com/resource/tallysman-ordering-guide/ 

© 2023 Calian Inc. All rights reserved. Calian, the “Confidence. Engineered.” tag line and the Calain logo are trademarks or registered trademarks of Calian Inc. and/or its affiliates in Canada and certain other countries. All other trademarks mentioned in this document are the property of their respective owners. The information presented is subject to change without notice. Calian assumes no responsibility for any errors or omissions in this document. Calian hereby disclaims any or all warranties and liabilities of any kind.