TeeJet TECHNOLOGIES RXA-52 Multi-Frequency Multi-Constellation GNSS Antenna User Guide
- June 11, 2024
- TeeJet TECHNOLOGIES
Table of Contents
RXA-52 Multi-Frequency Multi-Constellation GNSS Antenna
User Guide
RXA-52 Multi-Frequency Multi-Constellation GNSS Antenna
Thank you for choosing TeeJet Technologies’ RXA-52 as your GNSS antenna
solution. This document provides instructions for mounting and operation of
the RXA-52. Contact a local dealer for more information or visit
www.teejet.com.
The RXA-52 is an active antenna designed to receive signals from GPS, GLONASS,
BeiDou and Galileo satellites as well as L-Band signals.
The RXA-52 antenna is designed to operate in GPS L1/L2, GLONASS L1/L2 and
L-Band frequencies. The RXA-52 also supports the Galileo E1 and E5b
frequencies as well as BeiDou B1 and B2 frequencies.
It can be used with any console with an internal GNSS receiver or any device
with an antenna input port that both receives the RF signal and provides 3.3 –
18.0 VDC to the antenna.
RXA-52 Kit Includes
- RXA-52 Antenna
- Coaxial Cable, SMA male to TNC male, 20′/6 m (part number 45-05619) or 30′/9 m (part number 45-05620)
- Mounting Plate (part number 65-05243)
INSTALLATION
Site Selection Guidelines
Before installing the antenna, select a site that as closely as possible meets
the following conditions for optimal performance:
- An unobstructed line-of-sight from horizon to horizon and at all bearings and elevation angles
- As far as possible from reflective objects, especially those that are above the antenna and any water bodies, which can be a strong source of multi path reflections
- If obstructions and reflective surfaces are within 100 feet/30 meters, ensure the site is as high as possible. Otherwise, mount the antenna as close as possible to a reference ground plane, i.e., rooftop, earth, etc., if one exists.
- When mounting the RXA-52 Antenna, a space of at least 5.9 inch/15 cm between the antenna and any bend in the cable is required. Any length shorter than 5.9 inch/15 cm puts undue stress on the cable and the enclosure for the RXA-52.
- The antenna should not be mounted where water can pool around it. The antenna housing is designed to withstand rain and splashing, but not submersion in liquids for sustained periods of time.
- Mount the antenna above all other metal objects to avoid multi path. Satellite signals received by the GNSS antenna by a reflection from an object can decrease positioning accuracy. For example, roof racks, large headlight enclosures, etc., can cause multi path that may result in a jump in GNSS position.
Warning! To avoid potential adverse effects, do not locate antennas near
any high sources of heat.
Installing the Antenna
After a site has been selected, install the antenna as follows:
- Mount the antenna on a secure, stable structure using the provided magnetic mounts. A surface mounting plate (Part Number 65-05243) is also available for mounting on non-magnetic surfaces. See Mounting Plate Instructions for details.
- Attach the TNC connector of the coaxial cable to the antenna’s TNC connector. Attach the other end of the coaxial cable to the antenna input port of the receiving device, which must provide power as detailed in the “Specifications” section of this guide. All TeeJet Technologies GNSS receivers provide the necessary power through their antenna RF connectors.
Figure 1: Orientation Example
Orient antenna towards the front of the vehicle.
Route cable toward the back of vehicle.
Figure 2: RXA-52 Dimensions in Millimeters
Mounting Instructions
The RXA-52 is equipped with two (2) built-in magnets for attaching to the
included mounting bracket. If a permanent mount for the RXA-52 is required,
please contact TeeJet Technologies Technical Support for more information.
Intermediate Mounting Plate Template
A template for the intermediate mounting plate has been provided below.
- Red circles indicate holes where attachment will occur.
- Green lines indicate the outline of the mount and other holes for attaching the release plate.
WARNING! The optimal screw penetration into the mounting holes is 0.25
inch/6 mm (±1/32 inch/1 mm) deep. When selecting screws for mounting, ensure
the screw penetration does not exceed this specification. Using excessively
long screws can damage the antenna enclosure.
Antenna Care
- The RXA-52 is designed to withstand the elements, including rain, snow, and dust.
- However, to ensure your antenna performs optimally, keep the radome (the top surface of the antenna) clean and brush off any ice and snow.
SPECIFICATIONS
Performance
Signal Received
GPS …………………………………………………………………. L1, L2
GLONASS ………………………………………………………. L1, L2
Galileo …………………………………………………………….. E1, E5b
BeiDou L-Band ……………………………………………….. B1, B2
Pass Band (typical)
Upper pass band ……………………………………………… 1588.0 ± 23.0 MHz
Lower pass band ………………………………………………… 1220.0 ± 31.0 MHz
L-Band ……………………………………………………………… 1555.0 ± 10.0 MHz
Out-of-Band Rejection
Band edges ± 50 MHz …………………………………… 15 dB (typical)
Band edges ± 100 MHz ………………………………… 25 dB (typical)
LNA Gain (typical)
L1 …………………………………………………………………34 dB
L2 ………………………………………………………………….38 dB
Gain at Zenith (90°)
L1/B1/E1/G1 …………………………………………. +4.0 dBic minimum
L2/B2/E5b/G2 ………………………………………….. +4.0 dBic minimum
L-Band ………………………………………………………… +4.0 dBic minimum
Gain Roll-Off (from Zenith to Horizon)
L1/B1/E1/G1 ………………………………………………12 dB
L2/B2/E5b/G2 ……………………………………………12 dB
L-Band ………………………………………………………….12 dB
Phase Center Stability ……………………………… <5.0 mm
Polarization ……………………………………………… Right-hand circular
Noise Figure ………………………………………… 2.5 dB (typical)
VSWR ……………………………………………………..≤2.0 : 1
L1-L2 Differential Propagation Delay …………….. 7 ns (maximum)
Group Delay Ripple ………………………………………… <15 ns
Nominal Impedance ………………………………………… 50 Ω
Physical and Electrical
Dimensions
……………………………6.1 in W × 1.77 in H × 6.85 in L
………………………….. 155 mm W × 45 mm H ×174 mm L
Weight
……………………………. 15.88 oz / 450 g
Mounting
……………………………….2 × magnetic mounts
………………………………. 2 × M4 screw inserts
Power
Input voltage ………………………….. +3.3 to +18.0 VDC
Current …………………………………. 20 mA (typical)
Environmental
Temperature
Operating …………………………………….. -40°F to +185°F / -40°C to +85°C
Storage ………………………………………… -67°F to +185°F / -55°C to +85°C
Humidity ………………………………………. 95% non-condensing
Salt Fog …………………………………………. MIL-STD-810G (CH1), 509.6
Water/Dust Resistance ………………….. IP67, IP69K
Vibration (operating)
Random
………………………… MIL-STD-810G (CH1), 514.7 (15 g) Annex E
…………………………. Procedure 1, Category 24
Shock
……………………….. MIL-STD-810G (CH1), 516.7 (40 g) Procedure 1
Bump
……………………………………………. IEC 60068-2-27 Ea (25 g)
Compliance
……………………………………………. FCC, CE, ISED
RoHS ………………………………….. EU Directive 2011/65/EU
Warranty
1 year from Date of Purchase
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