# GNSS DOME ANTENNA, 1.525-1.606GHZ, 37DB
**URL**: https://novapart.co/products/33-3972-01-01/gnss-dome-antenna-1525-1606ghz-37db
**SKU**: 33-3972-01-01
**Manufacturer**: CALIAN
**Price**: €262.9700
**Stock**: 10+
**Lead Time**: 36 days (indicative)
## Specifications
| Parameter | Value |
|---|---|
| Gain | 37dB |
| Svhc | No SVHC (23-Jan-2024) |
| Vswr | 1.5 |
| Input Power | - |
| Antenna Type | Dome |
| Frequency Max | 1.606GHz |
| Frequency Min | 1.525GHz |
| Product Range | Accutenna TW3972 |
| Input Impedance | - |
| Antenna Mounting | Panel |
| Antenna Polarisation | - |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:3255482/)
## A Tallysman _Accutenna[®]_ TW3972 Tri le Band GNSS Antenna + L-band Correction Services p
The TW3972 is an _Accutenna[®]_ technology antenna providing triple band GPS L1/L2/L5, GLONASS G1/G2/G3, BeiDou B1/B2, Galileo E1/E5a+b plus L-band correction services coverage and is especially designed for precision triple frequency positioning. The TW3972 provides superior multi-path signal rejection, a linear phase response, and tight Phase Centre Variation (PCV). This antenna is ideal for precision agriculture, autonomous vehicle tracking and guidance, and other applications where precision matters.
The TW3972 features a precision tuned, twin circular dual feed, stacked patch element. The signals from the two orthogonal feeds are combined in a hybrid combiner, amplified in a wide-band LNA, then band-split for narrow filtering in each band and further amplified prior to recombination at the output. The antenna also has a strong pre-filter to mitigate inter-modulated signal interference from LTE and other cellular bands.
TW3972 Dimensions (mm)
The TW3972 offers excellent axial ratio and a tightly grouped phase center variation.
The TW3972 covers from 1164MHz to 1254MHz and 1525MHz to 1606MHz.
The TW3972 is housed in a through-hole mount, weather-proof enclosure for permanent installations. L Bracket or Pipe Mount (part numbers 23-0040-0, 23-0065-0 respectively) are available for non-rooftop installation. A 100mm ground plane is recommended for non-roof-top installations.
This product is also available in an OEM format (TW3967 for 28dB and TW3972E for 35dB)
## **Applications**
- Precision GPS position
- Triple Frequency RTK receivers
- Military & Security
## **Features**
- Very low Noise Preamp, < 2.5dB
- Axial ratio: < 1.5 dB typ.
- Tight Phase Center Variation
- LNA Gain 37 dB typ.
- Low current: 24 mA typ.
## **Benefits**
- Ideal for triple band RTK surveying systems
- Great multipath rejection
- Increased system accuracy
-
- Great signal to noise ratio
-
- IP67, REACH, and RoHS compliant
- ESD circuit protection: 15 KV
- Invariant performance from: +2.5 to 16VDC
## TW3972 Triple Band GNSS Antenna + L-band Correction Services
**Specifications** (Measured a Vcc = 3V, and Temperature=25°C)
## **Antenna**
|**Antenna**||||
|---|---|---|---|
|Patch Architecture|||Circular, Dual Feed, Dual Stacked Patch|
|E5a/L5 Gain (100mm ground plane)|||-1.5dBic typ. at Zenith|
|B2/E5b/G3 Gain (100mm ground plane)|||2.5 dBic typ. at Zenith|
|L2 Gain (100mm ground plane)|||4.0 dBic typ. at Zenith|
|G2 Gain (100mm ground plane)|||2.5 dBic typ. at Zenith|
|E1 Gain (100mm ground plane)|||4.0 dBic typ. at Zenith|
|L1 Gain (100mm ground plane)|||4.0 dBic typ. at Zenith|
|G1 Gain (100mm ground plane)|||2.5 dBic typ. at Zenith|
|Axial Ratio @ zenith||||
|L5/E5ab|<1.5 dB typ. 2.0 dB max.|<1.5 dB typ. 2.0 dB max.|B2
<1.5 dB typ. 2.0 dB max.|
|L2|<1.0 dB typ. 1.5 dB max.|<1.0 dB typ. 1.5 dB max.|G2
<1.5 dB typ. 2.0 dB max.|
|L-Band|<1.0 dB typ. 1.5 dB max.|<1.0 dB typ. 1.5 dB max.||
|L1/E1|<1.0 dB typ. 1.5 dB max.|<1.0 dB typ. 1.5 dB max.|G1
<1.5 dB typ. 2.0 dB max.|
|**Electrical**||||
|Filter Bandwidth|||L2/L5: 1164MHz-1254MHz L-Band/ L1: 1525 MHz-1606MHz|
|Overall LNA Gain|||37dB typ, 35 dB min,|
|Gain Variation with Temperature.|||3dB max over operational temperature range|
|LNA Noise Figure|||2.5dB typ at 25°C|
|VSWR (at LNA output, reference 50 Ohms)|||<1.5:1 typ. 1.8:1 max.|
|Supply Voltage Range|||+2.5 to 16VDC nominal, up to 50mV p-p ripple|
|EMI Immunity|||50V/Meter, excepting L1+/-100MHz and L2 +/- 100MHz|
|Supply Current|||24 mA typ. at 25°C|
|ESD Circuit protection|||15 KV air discharge.|
|Out-of-Band Rejection|**L5/E5/L2/G2**||**L1/E1/B1/G1**|
||<1050 MHz|>45 dB|<1450 MHz
>30dB|
||<1125 MHz|>30 dB|>1690 MHz
> 30dB|
||>1350 MHz|>45 dB|>1730 MHz
> 40dB|
|**Mechanicals & Environmental**||||
|Mechanical Size, Ground Plane||66mm x 21mm (see drawing on other page), 100mm ground plane recommended||
|Operating Temperature Range||-40°C to +85°C|-40°C to +85°C|
|Enclosure||Radome: EXL9330, Base: Zamak White Metal||
|Weight||185 g||
|Attachment Method||Permanent ¾” (19mm) through hole mount||
|Environmental||IP67, RoHS, RED, and REACH compliant||
|Shock||Vertical axis: 50 G, other axes: 30 G||
|Vibration||3 axis, sweep = 15 min, 10 to 200 Hz sweep: 3 G|3 axis, sweep = 15 min, 10 to 200 Hz sweep: 3 G|
|Salt fog / spray||MIL-STD-810F Section 509.4|MIL-STD-810F Section 509.4|
## **Ordering Information**
TW3972 – Triple Band GNSS antenna with L-Band Correction 33-3972-xx-yy-zzzz Where xx = connector type, yy = shape and colour of radome and zzzz = cable length in mm (where applicable) Please refer to the Ordering Guide ( http://www.tallysman.com/index.php/gnss/ordering-guide/) for the current and complete list of available radomes and connectors.
36 Steacie Drive Ottawa ON K2K 2A9 Canada Tel +1 613 591 3131 Fax 613 591 3121 sales@tallysman.com The information provided herein is intended as a guide only and is subject to change without notice. This document is not to be regarded as a guarantee of performance. Tallysman Wireless Inc. hereby disclaims any or all warranties and liabilities of any kind. © 2015 Tallysman Wireless Inc. All rights reserved. Rev 1.6
## Links
- [View this product on Novapart](https://novapart.co/products/33-3972-01-01/gnss-dome-antenna-1525-1606ghz-37db)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/tallysman-wireless/33-3972-01-01/gnss-dome-antenna-1-525-1-606ghz/dp/3255482)
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