# RF Antenna, 1.569 to 1.605GHz, GPS/GLONASS/Galileo/BeiDou, 4.5dBi, 50 ohm, SMA Connector

![Product image](https://novapart.co/image/farnell:4172764/)

**URL**: https://novapart.co/products/A.85.A.101111/rf-antenna-1569-to-1605ghz-gps-glonass-galileo
**SKU**: A.85.A.101111
**Manufacturer**: TAOGLAS
**Price**: €79.6500
**Stock**: 10+
**Lead Time**: 120 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Gain | 4.5dBi |
| Svhc | To Be Advised |
| Vswr | - |
| Input Power | 5W |
| Antenna Type | GPS / Glonass / Galileo / BeiDou |
| Frequency Max | 1.605GHz |
| Frequency Min | 1.569GHz |
| Product Range | - |
| Input Impedance | 50ohm |
| Antenna Mounting | SMA Connector |
| Antenna Polarisation | Right Hand Circular |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4172764/)

D. Qd Qd on Y) (© a| (O C) 

|1.|Introduction|3|
|---|---|---|
|2.|Specifications|4|
|3.|Antenna Characteristics|7|
|4.|Radiation Patterns|13|
|5.|Active Characteristics|18|
|6.|Mechanical Drawing|21|
|7.|Mechanical Drawing|22|
|8.|Packaging|23|
||Changelog|25|



Taoglas makes no warranties based on the accuracy or completeness of the contents of this document and reserves the right to make changes to specifications and product descriptions at any time without notice. Taoglas reserves all rights to this document and the information contained herein. Reproduction, use or disclosure to third parties without express permission is strictly prohibited. 

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## **1.** Introduction 

The Bolt, A.85 is a high gain GNSS L1/L5 (GPS/GLONASS/Galileo/BeiDou) antenna that features very high out of band rejection and can handle large bursts of power from nearby transmitters allowing the antenna to always remain operational. These characteristics make the A.85 ideal for applications where the antenna will be placed near high-power transmitters. 

Typical Applications Include: 

- Commercial Transportation 

- Asset and Container Tracking 

- Small Cell GNSS Towers 

- Precision Agriculture 

The A.85 Bolt L1 and L5 GNSS permanent mount antenna utilizes a very high efficiency (>60%) patch antenna that has been tuned for best possible performance within the enclosure to maximize signal quality. The internal LNAs have very low noise figure to maintain excellent signal quality throughout the entire signal chain. The signal chain also features carefully selected and placed SAW filters that collectively allow for very sharp signal attenuation outside of the intended frequency bands without negatively impacting in-band signal quality. 

The A.85 features excellent rejection across all non-GNSS frequencies to prevent overdriving or damaging your GPS receiver. At the 850/900MHz cellular bands, for example, the A.85 exhibits greater than 50dB of rejection. At the 1800/1900MHz cellular bands, it exhibits >65dB, making it best in class when out of band interference is a concern. Even with this excellent out of band attenuation, the A.85 maintains a low noise figure of 4dB and high gain of >21dB, making it an ideal solution for applications with longer cable runs where high cable loss is a concern. 

Cable lengths and connector types are customizable. Contact your regional Taoglas customer support team for further information. 

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## **2.** Specifications 

|**GNSS Frequency Bands Covered**|**GNSS Frequency Bands Covered**|**GNSS Frequency Bands Covered**|**GNSS Frequency Bands Covered**|**GNSS Frequency Bands Covered**|**GNSS Frequency Bands Covered**|**GNSS Frequency Bands Covered**|**GNSS Frequency Bands Covered**|
|---|---|---|---|---|---|---|---|
|**GPS/QZSS**|L1<br>1575.42MHz|L2<br>1227.6MHz|L5<br>1176.45MHz|L6<br>1278.75MHz||||
||▓|□|□|□||||
|**GLONASS**|L5R<br>1176.45MHz|L3PT<br>1201.5MHz|L2PT<br>1246MHz|L1CR<br>1575.42MHz|L1PT<br>1602MHz|||
||▓|□|□|▓|▓|||
|**Galileo**|E5a<br>1176.45MHz|E5b<br>1201.5MHz|E4<br>1215MHz|E3<br>1256MHz|E6<br>1278.75MHz|E2<br>1561MHz|E1<br>1575.42MHz|
||▓|□|□|□|□|▓|▓|
|**BeiDou**|B1<br>1561MHz|B2<br>1207.14MHz|B3<br>1268.52MHz|||||
||▓|□|□|||||
|**Compass**|E5B(B2)/ E6(B3)<br>1268.56MHz|E2(B1)<br>1561MHz||||||
||□|▓||||||
|**SBAS**|Omnistar<br>1542.5MHz|WAAS/EGN OS<br>1575.42MHz||||||
||□|▓||||||



◼ GNSS Frequency Bands Covered. □ GNSS Frequency Bands Not Covered. 

*SBAS systems: WASS(L1/L5), EGNOSS(E1/E5a), SDCM(G1/G2/G3), SNAS(B1,B2a), GAGAN(L1/L5), QZSS(L1/L5), KAZZ(L1/L5). 

GNSS Bands and Constellations 

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||||||**Electrical**|**Electrical**||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|||**GPS_L5**|||**BeiDou_B1**||**Galileo_E1**||**GPS_L1C**||**GLONASS_L1**|
|||||||||||||
|**Frequency (MHz)**||**1166-1186**|||**1559-1563**||**1563-1587**||**1569-1581**||**1569-1605**|
|||||||||||||
||||||**Efficiency (%)**|||||||
|Free-Space||||61.5|41.5||68.0||68.0||62.9|
|On-30x30cm||||51.4|35.5||57.7||57.7||54.4|
||||||**Average Gain (dB)**|||||||
|Free-Space||||-2.11|-3.82||-1.67||-1.67||-2.01|
|On-30x30cm||||-2.89|-4.50||-2.39||-2.39||-2.64|
||||||**Peak Gain (dBi)**|||||||
|Free-Space||||3.70|0.52||2.72||2.72||2.83|
|On-30x30cm||||2.78|2.34||4.40||4.40||4.50|
||||||**PCO (cm)**|||||||
|Free-Space||||1.0|0.9||0.9||0.9||0.9|
|On-30x30cm||||1.8|1.4||1.4||1.4||1.4|
||||||**PCV (cm)**|||||||
|Free-Space||||2.3|1.2||1.2||1.2||1.2|
|On-30x30cm||||6.3|8.6||8.6||8.6||8.6|
|Impedance|||||||50 Ω|||||
|Polarization|||||Right-Hand Circularly Polarized (RHCP)|||||||
|Radiation Pattern|||||Omni-Directional|||||||
|Max. input power|||||5 W|||||||
|||||**LNA and Filter Electrical Properties**||||||||
|**Frequency (MHz)**||||**1176.45**||**1561**||**1575.42**|||**1602**|
|Return Loss (dB)||||-7||-9||-15|||-12|
|Gain @ 3V (dB)||||30||28||28|||28|
|Noise @ 3V (dB)||||2.5||2.6||2.4|||2.2|
|Group Delay (ns)||||28.1||26.7||25.2|||28.0|
|DC Power Input (V)||||1.8 ~ 5.5||||||||
|Power consumption @3V (mA)||||18||||||||
|Outer Band Attenuation (dB)||||40 @ Fc +/-100MHz||||||||
|(reference level from 0dB)||||50@Fc +/-200MHz||||||||
|||||**Field Test Result**||||||||
|RTK Accuracy (cm)||||1.9||||||||
|CN Value (dB-Hz)||||40+||||||||
|Non RTK Accuracy (cm)||||42.8||||||||



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## **Mechanical** 

|**Mechanical**|**Mechanical**|**Mechanical**|
|---|---|---|
||Dimensions|94.3mm, Height: 25.4mm|
||Weight|283.5g|
||Material|ASA|
||Connector|SMA(M)ST as standard|
||Cable|1m of RG-174 as standard|
|||**Environmental**|
||Waterproof Rating|IP65|
||Temperature Range|-40°C to 85°C|
||Humidity|Non-condensing 65°C 95% RH|



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## **3.** Antenna Characteristics 

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3.2 VSWR<br>**----- End of picture text -----**<br>


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## **3.3** Efficiency 

## **3.4** Average Gain 

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- **3.5** Peak Gain 

- | se tie}| ft ft 

## **3.6** Axial Ratio | 

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TTT. LP... Aer<br>**----- End of picture text -----**<br>


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## **4.** Radiation Patterns 

**4.** 

## **4.1** Test Setup 

30x30cm Groundplane 

Freespace 

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**4.2** 1176MHz 3D and 2D Radiation Patterns (Freespace) 

## XY Plane 

## XZ Plane 

## YZ Plane 

x 

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## 1561MHz 

## XY Plane 

## XZ Plane 

## YZ Plane 

## x 

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## 1575MHz 

## XY Plane 

## XZ Plane 

## YZ Plane 

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## 1602MHz 

## XY Plane 

## XZ Plane 

## YZ Plane 

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**4.3** 1176MHz 3D and 2D Radiation Patterns (30x30cm Groundplane) 

## XY Plane 

## XZ Plane 

## YZ Plane 

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## 1561MHz 

## XY Plane 

## XZ Plane 

## YZ Plane 

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## 1575MHz 

## XY Plane 

## XZ Plane 

## YZ Plane 

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## 1602MHz 

## XY Plane 

## XZ Plane 

## YZ Plane 

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## **5.** Active Characteristics 

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5.1 Block Diagram (LNA)<br>**----- End of picture text -----**<br>


## **5.2** LNA – Out of Band Rejection 1.1GHz to 1.7GHz 

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S12<br>50<br>40<br>30<br>20<br>10<br>0<br>-10<br>-20<br>-30<br>-40<br>-50<br>1100 1200 1300 1400 1500 1600 1700 (MHz)<br>S<br>(dB)<br>**----- End of picture text -----**<br>


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## **5.3** LNA - Out of band Rejection 0.5GHz to 6GHz |[4] 

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S12<br>40<br>30<br>20<br>10<br>0<br>-10<br>-20<br>-30<br>-40<br>-50<br>-60<br>500 1000 1500 2000 2500 3000 3500 4000 4500 5000 5500 6000 (MHz)<br>(dB)<br>**----- End of picture text -----**<br>


## **5.4** Noise Figure @3.0V |[4] 

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## **6.** Field Test Results 

## **4.** 

## **6.1** Rooftop test 

In this section Taoglas will present the field test result for A.85 antenna. The test was performed when the antenna was mounted on a static rooftop test set up in an open sky environment for at least 6 hours. 

Receiver:  Septentrio  AsteRx-U S/N Receiver Features: 

- Multi-band GNSS: 544 channels 

- GPS: L1, L2, L5 GLONASS: L1, L2, L3 Galileo: E1, E5ab, AltBoc, E6 BeiDou: B1, B2, B3 NavIC: L51 QZSS: L1, L2, L5, L6 

- SBAS: EGNOS, WAAS, GAGAN, MSAS, SDCM(L1, L5) 

- RTK (base and rover), Integrated dual-channel L-band receiver, Support for PPP 

- Nav. update rate up to 100 Hz 

- Position accuracy = RTK 0.6 cm + 0.5 ppm 

**Positioning Accuracy Table (2D Accuracy)** 

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||||||
|---|---|---|---|---|
|Test Condition|Correction Service|CEP (50%)|DRMS (68%)|2DRMS (95-98.2%)|
|RTK Disabled|61.8 cm|74.1 cm|148.1 cm|
|Free Space|
|RTK Enabled|0.7 cm|0.9 cm|1.8 cm|
|RTK Disabled|35.5 cm|42.8 cm|85.5 cm|
|30x30 cm|
|Ground Plane|
|RTK Enabled|1.6 cm|1.9 cm|3.8 cm|

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## **7.** Mechanical Drawing (Units: mm) 

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## **8.** Packaging 

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Changelog for the datasheet **SPE-22-8-112 – A.85.A.101111 Revision: B (Current Version)** Date: 2022-02-22 Changes: Updated GNSS Bands & Constellations Graphics Changes Made by: Cesar Sousa 

## **Previous Revisions** 

**Revision: A (Original First Release)** Date: 2022-07-19 Notes: Initial Datasheet Release Author: Gary West 

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© Taoglas 

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---

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