# RF Antenna, 1.17645 to 1.602GHz, GPS/GNSS/Glonass/Galileo/BeiDou/IRNSS/LNA/QZSS/SBAS/L-Band, 23.5dB

![Product image](https://novapart.co/image/farnell:4309883/)

**URL**: https://novapart.co/products/AA.250.101111/rf-antenna-117645-to-1602ghz-gps-gnss-glonass
**SKU**: AA.250.101111
**Manufacturer**: TAOGLAS
**Price**: €136.7800
**Stock**: 10+
**Lead Time**: 120 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Gain | 23.5dB |
| Svhc | To Be Advised |
| Vswr | - |
| Input Power | - |
| Antenna Type | GPS / GNSS / Glonass / Galileo / BeiDou / IRNSS / LNA / QZSS / SBAS / L-Band |
| Frequency Max | 1.602GHz |
| Frequency Min | 1.17645GHz |
| Product Range | - |
| Input Impedance | 50ohm |
| Antenna Mounting | Magnetic / SMA Connector |
| Antenna Polarisation | Right Hand Circular |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4309883/)

## a A TAOGLAS. 

+ 5 Qd BG Y) (© a| (O C) 

Comet 

**Part No: AA.250.101111** 

**Description** 

All-Band GNSS Active Magnetic Mount Antenna 

**Features:** 

Dual Stage LNA Bands Covered: 

• GPS (L1/L2/L5) 

• IRNSS (L5) 

• QZSS (L1/L2C/L5/L6) 

• Galileo (E1/E5a/E5b/E6) 

• GLONASS (G1/G2/G3) 

• BeiDou (B1/B2a/B2b/B3) 

• L-Band 

Dimensions: Ø86 x 26mm 

Cable: 1m RG-174, Connector: SMA(M) Permanent Mount, IP67 Waterproof Rated Enclosure RoHS & REACH Compliant 

www.taoglas.com 

SPE-23-8-241-A 

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**----- Start of picture text -----**<br>
1. Introduction  2<br>2. Specification  3<br>3. Antenna Characteristics  5<br>4. Radiation Patterns  9<br>5. Active Circuitry Performance  18<br>6. Field Test Results  22<br>7. Mechanical Drawing  23<br>8. Packaging  24<br>Changelog  ??<br>**----- End of picture text -----**<br>


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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The Taoglas Comet AA.250 is an active GNSS magnetic mount antenna for use across all major GNSS constellations, with the L-Band for correction services also added for optimizing GNSS systems. The antenna exhibits excellent gain and good radiation pattern stability leading to a reliable GPS fix in areas of weaker signal strength. These elements combine to ensure the best possible positional accuracy in both RTK and nonRTK systems. 

Typical applications include: 

- UAVs and Robotics 

- Autonomous Vehicles 

- High Accuracy Positioning 

- RTK Systems 

- Precision Agriculture 

The AA.250 provides excellent positional accuracy, this is due to outstanding signal to noise ratio(C/N0) and a low axial ratio, ensuring the antenna maintains stable when a location is required. With great 2DRMS and Fast time to first fix the AA.250 is the ideal antenna solution for Multiband GNSS RTK Systems as it performs very well, with stable gains and low axial ratio values across all major GNSS bands. 

The AA.250 includes dual stage LNA and front-end SAW filters to reduce out of band noise, such as from nearby cellular transceivers. It offers better protection from nearby radiated power surges and greatly reduces the probability of damaging your GNSS receiver from nearby transmissions. The AA.250 has 1 cable feed as the internal feeds are combined with a hybrid coupler and the antenna performance results are shown in the below sections. 

The cable and connector are fully customizable, subject to NRE and MOQ. For further information please contact your regional Taoglas customer support team. 

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|**GNSS Frequency Bands**|**GNSS Frequency Bands**|**GNSS Frequency Bands**|**GNSS Frequency Bands**|**GNSS Frequency Bands**|**GNSS Frequency Bands**|
|---|---|---|---|---|---|
|**GPS**|**L1**<br>**1575.42 MHz**|**L2**<br>**1227.6 MHz**|**L5**<br>**1176.45 MHz**|||
||▓|▓|▓|||
|**GLONASS**|**G1**<br>**1602 MHz**|**G2**<br>**1248 MHz**|**G3**<br>**1207 MHz**|||
||▓|▓|▓|||
|**Galileo**|**E1**<br>**1575.24 MHz**|**E5a**<br>**1176.45 MHz**|**E5b**<br>**1201.5 MHz**|**E6**<br>**1278.75 MHz**||
||▓|▓|▓|▓||
|**BeiDou**|**B1C**<br>**1575.42 MHz**|**B1I**<br>**1561 MHz**|**B2a**<br>**1176.45 MHz**|**B2b**<br>**1207.14 MHz**|**B3**<br>**1268.52 MHz**|
||▓|▓|▓|▓|▓|
|**L-Band**|**L-Band**<br>**1542 MHz**|||||
||▓|||||
|**QZSS (Regional)**|**L1**<br>**1575.42 MHz**|**L2C**<br>**1227.6 MHz**|**L5**<br>**1176.45 MHz**|**L6**<br>**1278.75e6**||
||▓|▓|▓|▓||
|**IRNSS (Regional)**|**L5**<br>**1176.45 MHz**|||||
||▓|||||
|**SBAS**|**L1/E1/B1**<br>**1575.42 MHz**|**L5/B2a/E5a**<br>**1176.45 MHz**|**G1**<br>**1602 MHz**|**G2**<br>**1248 MHz**|**G3**<br>**1207 MHz**|
||▓|▓|▓|▓|▓|



## GNSS Bands and Constellations 

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|||||||||||
|---|---|---|---|---|---|---|---|---|---|
||**GNSS Electrical**|||||||||
|||||||||||
|||||||||||
|**Frequency (MHz)**|**1176.45**|**1201.55**|**1227.6**|**1248**|**1268.52**|**1278.75**|**1561**|**1575.42**|**1602**|
|||||||||||
|||||||||||
|**Axial Ratio (dB)**|1.1|0.35|0.61|0.68|0.43|1.52|0.88|0.74|0.9|
|||||||||||
|||||||||||
|**PCO**|2.03|1.83|1.51|1.67|1.98|2.15|0.73|0.65|0.60|
|||||||||||
|||||||||||
|**PCV**|0.74|0.47|0.25|0.12|0.08|0.16|0.55|0.59|0.99|
|||||||||||
|||||||||||
|**Polarization**|RHCP|||||||||
|||||||||||
|||||||||||
|**Impedance**|50Ω|||||||||
|||||||||||



For passive results please refer to GPDF6010.A 

||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
||||**LNA and Filter Electrical Properties**||||||||
||||||||||||
|**Frequency**|||||||||||
||**1176.45**|**1201.55**|**1227.6**|**1248**|**1268.52**|**1278.75**|**1542**|**1561**|**1575.42**|**1602**|
|**(MHz)**|||||||||||
||||||||||||
||||||||||||
|**Gain (dB)**|25.5|26.4|26.4|25.6|24.2|26.4|24.1|24.1|23.5|23.5|
||||||||||||
|**Noise Figure**|||||||||||
||3.4|3.3|3.3|3.3|3.2|3.3|3.4|3.5|3.9|3.9|
|**(dB)**|||||||||||
||||||||||||
|**Group Delay**|||||||||||
||14.1|10.1|10.0|9.9|10.5|10.1|8.3|8.3|9.1|9.1|
|**(ns)**|||||||||||
||||||||||||
||||||||||||
|**P1dB (dBm)**|-24.7||-24.2|-22.5||-21.2||-22.6|-22.4|-21.8|
||||||||||||



||**Mechanical**|
|---|---|
|**Dimensions**|Ø86.4 x 26|
|||
|**Weight**|---|
|||
|||
|**Material**|ABS|
|||
|||
|**Connector**|SMA(M)|
|||
|||
|**Cable**|RG-174|
|||



||**Environmental**|
|---|---|
|**Operation Temperature**|-40°C - 85°C|
|**Storage Temperature**|-40°C - 85°C|



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Test Setup 

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## **3.2** Axial Ratio 7 tT || Freee ccc 

**3.3** Axial Ratio vs Angle for Phi=0 7 

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## **3.4** Axial Ratio vs Angle for Phi=90 Ee Oe1 | 

**3.5** PCO ies 

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## PCV 

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## Test Setup 

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## Patterns at 1176 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## Patterns at 1227 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## Patterns at 1269 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## Patterns at 1279 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## Patterns at 1542 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## Patterns at 1562 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## Patterns at 1575 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## Patterns at 1603 MHz 

## XZ Plane 

## YZ Plane 

## XY Plane 

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## Block Diagram 

## Front End Wideband Gain Plot 

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## Narrowband Gain Plot – Low-Band 

## Narrowband Gain Plot – High-Band 

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## Noise Figure (Low-Band) 

## Noise Figure (High-Band) 

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## Group Delay (Low-Band) 

## Group Delay (High-Band) 

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In this section Taoglas will present the field test result for AA.250 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. 

Taoglas will show the field test results using the following receiver: 

## **6.1** 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)** 

|**Positioning Accuracy Table (2D Accuracy)g Accuracy Table (2D Accuracy) Accuracy Table (2D Accuracy)y Table (2D Accuracy) Table (2D Accuracy)(2D Accuracy)2D Accuracy)y)**|**Positioning Accuracy Table (2D Accuracy)g Accuracy Table (2D Accuracy) Accuracy Table (2D Accuracy)y Table (2D Accuracy) Table (2D Accuracy)(2D Accuracy)2D Accuracy)y)**|**Positioning Accuracy Table (2D Accuracy)g Accuracy Table (2D Accuracy) Accuracy Table (2D Accuracy)y Table (2D Accuracy) Table (2D Accuracy)(2D Accuracy)2D Accuracy)y)**|**Positioning Accuracy Table (2D Accuracy)g Accuracy Table (2D Accuracy) Accuracy Table (2D Accuracy)y Table (2D Accuracy) Table (2D Accuracy)(2D Accuracy)2D Accuracy)y)**|**Positioning Accuracy Table (2D Accuracy)g Accuracy Table (2D Accuracy) Accuracy Table (2D Accuracy)y Table (2D Accuracy) Table (2D Accuracy)(2D Accuracy)2D Accuracy)y)**|**Positioning Accuracy Table (2D Accuracy)g Accuracy Table (2D Accuracy) Accuracy Table (2D Accuracy)y Table (2D Accuracy) Table (2D Accuracy)(2D Accuracy)2D Accuracy)y)**|
|---|---|---|---|---|---|
|**Test**<br>**Condition**|**Correction**<br>**Service**|**CEP (50%)**|**DRMS (68%)**|**2DRMS (95-98.2%)**|**TTFF (sec)**|
|**Free**<br>**Space**|PPP-RTK<br>DISABLED|36.04 cm|43.14 cm|86.28 cm|47s|
||PPP-RTK<br>ENABLED|7.75 cm|9.56 cm|19.11 cm|53s|
|**30x30 cm**<br>**Ground**<br>**Plane**|PPP-RTK<br>DISABLED|22.93 cm|28.09 cm|56.19 cm|44s|
||PPP-RTK<br>ENABLED|4.45 cm|5.45 cm|10.89 cm|42s|



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Changelog for the datasheet 

**SPE-23-8-241 – AA.250.101111** 

## **Revision: A (Original First Release)** 

Date: 2023-08-29 Notes: Initial Release Author: Gary West 

## **Previous Revisions** 

**==> picture [494 x 480] intentionally omitted <==**

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## Links

- [View this product on Novapart](https://novapart.co/products/AA.250.101111/rf-antenna-117645-to-1602ghz-gps-gnss-glonass)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/taoglas/aa-250-101111/rf-antenna-1-17645-to-1-602ghz/dp/4309883)
---

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