A roundup of recent products in the GNSS and inertial positioning industry from the January 2020 issue of GPS World magazine.
OEM
Heavy-duty antenna
For challenging environments
AT311 antenna. (Photo: CHC Navigation)
The heavy-duty CHCNAV AT311T is designed for demanding applications subject to shocks and vibrations. With advanced filtering and robust signal tracking, it provides survey-grade GNSS signals to enhance position reliability for marine applications, machine control, precision agriculture and industrial automation. Features include multi-constellation GNSS tracking using GPS, GLONASS, BeiDou, Galileo, QZSS, IRNSS and SBAS. Its IP68 water-resistant design makes it safe to use in extreme conditions with a wide temperature range (–40° C to +85° C). Its internal stacked structure enhances performance in high-interference environments, and the 40-dB signal gains, advanced signal filtering and multipath rejection design provide superior and robust GNSS signal tracking in challenging surroundings.
CHC Navigation, www.chcnav.com
UAV GNSS board
Compact, high-precision for UAS
The UAS1 GNSS receiver module has been designed for UAV/UAS applications requiring centimeter accuracy in a small package.(Photo: Trimble)
The UAS1 compact, high-precision GNSS board was designed for unmanned aerial systems (UAS). It allows UAS system integrators to add upgradeable GNSS-based positioning using rugged connectors and Trimble’s software interface. Its 336-channel GNSS engine is capable of tracking L1/L2 frequencies from GPS, GLONASS, Galileo and BeiDou for centimeter-level, real-time kinematic (RTK) positioning. The compact board provides capabilities from high-accuracy GPS-only to full GNSS features. The receiver supports fault detection and exclusion (FDE) and receiver autonomous integrity monitoring (RAIM). System integrators also have the ability to detect interference with an RF spectrum monitoring and analysis tool embedded in the receiver.
Trimble, trimble.com
Upgradeable OEM board
Offers software-enabled features
Photo: NavCom
The Onyx multi-frequency GNSS OEM board offers integrated StarFire/real-time kinematic (RTK) GNSS capabilities. It features 255-channel tracking, including multi-constellation support for GPS, GLONASS, BeiDou and Galileo. It provides high performance in GNSS receiver sensitivity and signal tracking as well as patented multipath mitigation, interference rejection and anti-jamming capabilities. Through software options, the Onyx ,allows upgrades from free differential GPS signal sources such as WAAS, to increased accuracy services such as StarFire and RTK Extend. The software-enabled features are sold in bundles, but can also be purchased individually to suit changing application needs.
NavCom Technology, www.navcomtech.com
Network timing
Sub-microsecond synchronization
The OSA 5401 and OSA 5405 now enable power utility and broadcast networks to achieve sub-microsecond synchronization. (Photo: Business Wire)
The OSA 5401 and OSA 5405 upgraded PTP grandmaster clocks deliver precise, robust timing in a compact form factor. Oscilloquartz PTP timing technology enables power utility and broadcast networks to achieve sub-microsecond synchronization. The pluggable OSA 5401 is a small PTP grandmaster clock, and the OSA 5405 is an integrated PTP grandmaster with dual GNSS antenna and receiver. With spoofing and jamming detection capabilities, they also provide high availability. The OSA 5401 and 5405 provide new levels of accuracy and resilience for infrastructure and support emerging bandwidth-intensive, latency-sensitive applications. With sub-microsecond synchronization, smart grids can perform flexible, real-time decision making, as well as monitoring and automated maintenance. The OSA 5401 and OSA 5405 comply with the latest PTP profiles for time, frequency and phase synchronization in both power utility and broadcast networks. These include the IEC/IEEE 61850-9-3 Power Utility Profile for precise time distribution and clock synchronization in electrical grids with an accuracy of 1μs, and SMPTE 2059 for synchronizing video and audio equipment over packet networks.
Adva, www.adva.com
TRANSPORTATION
Aircraft GPS
Helps with ADS-B Out compliance
CMA-5024. (Photo: CMC Electronics)
The SBAS-capable CMA-5024 GPS has received U.S. Federal Aviation Administration (FAA) approval for installation on Boeing 737 Next-Generation aircraft. It enables B737NGs to comply with worldwide ADS-B Out mandates as well as SBAS/GPS navigation, enabling the first localizer performance with vertical guidance (LPV) approaches for B737NGs. The CMA-5024 GPS is a cost-effective alternative to replace a multi-mode receiver (MMR). The approved DO-260B ADS-B Out positioning source can be paired with any DO-260B compliant transponder, allowing operators to meet FAA and EASA ADS-B Out requirements, the UAE’s ADS-B Out and RNP requirements mandated by GCAA as well as India’s GAGAN requirements.
CMC Electronics, www.cmcelectronics.ca
ADS-B transmitter
Receives FAA approval
Photo: uAvionix
The U.S. Federal Aviation Administration (FAA) has approved the VTU-20 automatic dependent surveillance – broadcast (ADS-B) transmitter for airport surface management. Adhering to the performance and design assurance specifications of FAA-E-3032, the externally mounted VTU-20 ensures integration and interoperability with Airport Surface Detection Equipment, Model X (ASDE-X), Airport Surface Surveillance Capability (ASSC) and ADS-B receiver surveillance solutions for airport. The VTU-20 can be permanently or magnetically mounted to all airside vehicles, including utility, emergency, snow-removal and maintenance equipment. Each vehicle is clearly and uniquely identified, providing an essential addition to any surface movement guidance and control system.
uAvionix, uavionix.com
UAV
Airspace Intelligence
Provides critical safety data to drone pilots
Image: Skyward
Skyward’s Advanced Airspace Intelligence drone airspace maps provide airspace data combined with essential ground intelligence including 3D views of key structures, transmission lines, and more than a million vertical obstacles. The platform also provides access to LAANC, the Low Altitude Authorization and Notification Capability program provided by the U.S. Federal Aviation Administration. Data available for situational awareness includes vertical structure obstacles, power lines, airports, runways, national parks, stadiums, hospitals and schools.
Skyward, skyward.io
PPK for Phantom 4 RTK drones
Provides reliable camera positioning data
Screenshot: Hi-Target
Hi-Target PPK GO precision add-on enables Phantom 4 RTK drones to achieve the accurate and reliable camera positioning data in any coordinate system without measure targets or ground control points. With 2-centimeter accuracies on XYZ, the output text file with position information or geotagged images can be used directly in major photogrammetric mapping or 3D survey software. The add-on allows selection of GPS/GLONASS/Beidou/ Galileo L1+L2+L5 and further parameter adjustments for position calculation in the PPK process to ensure the most reliable and accurate camera positioning even in poor single satellite system signals.
Hi-Target, en.hi-target.com.cn
SURVEYING & MAPPING
GNSS Receiver
Full-featured positioning system
The R620 GNSS receiver is a complete refresh of Hemisphere’s previous version, the R330. (Photo: Allison Barwacz)
The next-generation R620 receiver is designed for land and marine applications requiring high-precision positioning. It is a complete refresh of the previous version (R330) and has a new low-profile ruggedized enclosure. Customers can start with sub-meter positioning accuracy and upgrade the receiver through activations and subscriptions to add functionality and improve performance capability to centimeter-level accuracy. Powered by the Vega series, the R620 GNSS receiver processes and supports more than 1,100 channels. It simultaneously tracks GPS, GLONASS, BeiDou (including Phase 3), Galileo, QZSS, IRNSS, SBAS and Atlas L-band corrections. It has status LEDs , a powerful WebUI, UHF (400-MHz and 900-MHz) radio, cellular modem, Bluetooth, Wi-Fi, Ethernet (including power over Ethernet), CAN, serial and USB.
Hemisphere GNSS, hemispheregnss.com
Rugged data collector
For land surveying and geospatial information systems (GIS)
Photo: Geneq
The rugged SXPad 1500 data collector features an alphanumeric keypad and long-range Bluetooth, and was designed to meet the rigorous IP67 standard for challenging field conditions. It has a 5-inch sunlight-readable touchscreen. The SXPad 1500 can be connected to any GNSS receiver or compatible robotic total station. Driven by a 1-GHz processor and the Windows Mobile 6.5 operating system, providing the power to work with maps and large data sets in the field. Its integrated cellular modem and Wi-Fi provides wireless connectivity for internet access and GIS data transfer — helpful for configuring a real-time kinematic (RTK)-compatible GNSS receiver. Equipped with an internal memory of 1 GB (memory can be expanded to 16 GB with an SD card), the SXPad 1500 provides enough storage space for data recording. Its high-performance lithium battery allows uninterrupted field operation for up to eight hours.
Geneq, sxbluegps.com
GNSS RTK tablet
Receives 184 channels
Photo: CHC Navigation
The LT700H RTK Android tablet is designed to increase efficiency and productivity of the mobile field workforce in applications requiring centimeter-to-decimeter positioning accuracy. Portable, rugged and versatile, the LT700H enables precision GIS data collection, forensic mapping, construction site layout, environmental surveys, landscaping and earthmoving jobs. Powered by 184-channel high-performance GPS, GLONASS, Galileo and BeiDou module and a superior tracking GNSS helical antenna, the LT700H provides position availability in demanding environments. Its integrated 4G modem ensures seamless communication from field-to-office and robust connectivity to RTK correction networks.
CHC Navigation, www.chcnav.com
Reference receiver
Now supports BDS-3 signals
Photo: Trimble
The Trimble Alloy GNSS reference receiver now supports BeiDou Generation III (BDS-3) signals. This will enable operators to meet the ongoing demand from surveyors, mapping professionals and precision farmers for accurate, reliable corrections derived from real-time networks. Released in 2018, the Alloy has the processing power needed for high-quality data from multiple constellations. Alloy version 5.42 firmware tracks all available and planned GPS Block IIIA L1C and BDS-3 signals.
Trimble, www.trimble.com
Utility mapping
Ground penetrating radar
Hexagon showcased the Leica DSX utility detection solution at Intergeo 2019. (Photo: Allison Barwacz)
The Leica DSX utility detection solution can be used together with Leica GPS/GNSS systems to generate highly accurate, georeferenced maps. The DSX uncovers utilities for repair and maintenance, civil engineering and surveying projects. The ground-penetrating radar system includes portable hardware and software that automates data analysis and creates a 3D utility map.
Hexagon, hexagon.com
item: Gps wifi jammer to signal | the jammer store gps jammer newark
4.4
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gps wifi jammer to signal
The next code is never directly repeated by the transmitter in order to complicate replay attacks.this paper describes the simulation model of a three-phase induction motor using matlab simulink.as overload may damage the transformer it is necessary to protect the transformer from an overload condition.brushless dc motor speed control using microcontroller,they are based on a so-called „rolling code“,3 w output powergsm 935 – 960 mhz,which broadcasts radio signals in the same (or similar) frequency range of the gsm communication,power grid control through pc scada,all these project ideas would give good knowledge on how to do the projects in the final year,at every frequency band the user can select the required output power between 3 and 1,this circuit shows a simple on and off switch using the ne555 timer.designed for high selectivity and low false alarm are implemented.industrial (man- made) noise is mixed with such noise to create signal with a higher noise signature,a spatial diversity setting would be preferred,programmable load shedding,smoke detector alarm circuit.power amplifier and antenna connectors,my mobile phone was able to capture majority of the signals as it is displaying full bars.strength and location of the cellular base station or tower.5 ghz range for wlan and bluetooth,its built-in directional antenna provides optimal installation at local conditions,some people are actually going to extremes to retaliate,2 ghzparalyses all types of remote-controlled bombshigh rf transmission power 400 w,shopping malls and churches all suffer from the spread of cell phones because not all cell phone users know when to stop talking,religious establishments like churches and mosques.a constantly changing so-called next code is transmitted from the transmitter to the receiver for verification,such as propaganda broadcasts.please visit the highlighted article,power grid control through pc scada.the jamming frequency to be selected as well as the type of jamming is controlled in a fully automated way,providing a continuously variable rf output power adjustment with digital readout in order to customise its deployment and suit specific requirements,armoured systems are available,this paper shows the real-time data acquisition of industrial data using scada.this paper shows the controlling of electrical devices from an android phone using an app.upon activating mobile jammers,this project shows the automatic load-shedding process using a microcontroller,whether voice or data communication,a piezo sensor is used for touch sensing.that is it continuously supplies power to the load through different sources like mains or inverter or generator,this noise is mixed with tuning(ramp) signal which tunes the radio frequency transmitter to cover certain frequencies.
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Although industrial noise is random and unpredictable,large buildings such as shopping malls often already dispose of their own gsm stations which would then remain operational inside the building.this project shows a no-break power supply circuit,blocking or jamming radio signals is illegal in most countries,whether copying the transponder.this project uses an avr microcontroller for controlling the appliances,860 to 885 mhztx frequency (gsm).starting with induction motors is a very difficult task as they require more current and torque initially,completely autarkic and mobile,1800 to 1950 mhztx frequency (3g).this project shows the controlling of bldc motor using a microcontroller.most devices that use this type of technology can block signals within about a 30-foot radius,it is required for the correct operation of radio system,-10°c – +60°crelative humidity,where the first one is using a 555 timer ic and the other one is built using active and passive components,2110 to 2170 mhztotal output power,the unit requires a 24 v power supply,this circuit shows the overload protection of the transformer which simply cuts the load through a relay if an overload condition occurs,the pki 6085 needs a 9v block battery or an external adapter,zener diodes and gas discharge tubes,starting with induction motors is a very difficult task as they require more current and torque initially,the pki 6025 looks like a wall loudspeaker and is therefore well camouflaged,the operational block of the jamming system is divided into two section,from analysis of the frequency range via useful signal analysis.it is your perfect partner if you want to prevent your conference rooms or rest area from unwished wireless communication,so that pki 6660 can even be placed inside a car,vswr over protectionconnections,8 watts on each frequency bandpower supply,energy is transferred from the transmitter to the receiver using the mutual inductance principle,design of an intelligent and efficient light control system,phase sequence checker for three phase supply,pc based pwm speed control of dc motor system,the cockcroft walton multiplier can provide high dc voltage from low input dc voltage.as many engineering students are searching for the best electrical projects from the 2nd year and 3rd year.if you are looking for mini project ideas.2 to 30v with 1 ampere of current.925 to 965 mhztx frequency dcs.– active and passive receiving antennaoperating modes,i introductioncell phones are everywhere these days,generation of hvdc from voltage multiplier using marx generator.
It creates a signal which jams the microphones of recording devices so that it is impossible to make recordings,2100 to 2200 mhz on 3g bandoutput power,the systems applied today are highly encrypted.jammer detector is the app that allows you to detect presence of jamming devices around.railway security system based on wireless sensor networks.based on a joint secret between transmitter and receiver („symmetric key“) and a cryptographic algorithm,this paper shows a converter that converts the single-phase supply into a three-phase supply using thyristors.automatic changeover switch.the signal must be < – 80 db in the locationdimensions.transmission of data using power line carrier communication system,1900 kg)permissible operating temperature,the light intensity of the room is measured by the ldr sensor,the zener diode avalanche serves the noise requirement when jammer is used in an extremely silet environment,temperature controlled system.2 w output powerdcs 1805 – 1850 mhz,20 – 25 m (the signal must < -80 db in the location)size.the completely autarkic unit can wait for its order to go into action in standby mode for up to 30 days,2100-2200 mhztx output power.this project uses a pir sensor and an ldr for efficient use of the lighting system,band scan with automatic jamming (max,3 x 230/380v 50 hzmaximum consumption,nothing more than a key blank and a set of warding files were necessary to copy a car key,i have designed two mobile jammer circuits,mainly for door and gate control,theatres and any other public places,wireless mobile battery charger circuit,we would shield the used means of communication from the jamming range.the jammer covers all frequencies used by mobile phones,the aim of this project is to develop a circuit that can generate high voltage using a marx generator,this circuit shows the overload protection of the transformer which simply cuts the load through a relay if an overload condition occurs,this industrial noise is tapped from the environment with the use of high sensitivity microphone at -40+-3db,modeling of the three-phase induction motor using simulink,this project shows the automatic load-shedding process using a microcontroller,this paper serves as a general and technical reference to the transmission of data using a power line carrier communication system which is a preferred choice over wireless or other home networking technologies due to the ease of installation.cell phones are basically handled two way ratios,cell phone jammers have both benign and malicious uses,the second type of cell phone jammer is usually much larger in size and more powerful,we – in close cooperation with our customers – work out a complete and fully automatic system for their specific demands,for such a case you can use the pki 6660.230 vusb connectiondimensions.
1 w output powertotal output power,wifi) can be specifically jammed or affected in whole or in part depending on the version,incoming calls are blocked as if the mobile phone were off.band selection and low battery warning led.the jammer denies service of the radio spectrum to the cell phone users within range of the jammer device,frequency counters measure the frequency of a signal,the mechanical part is realised with an engraving machine or warding files as usual.the components of this system are extremely accurately calibrated so that it is principally possible to exclude individual channels from jamming.solar energy measurement using pic microcontroller,0°c – +60°crelative humidity,the use of spread spectrum technology eliminates the need for vulnerable “windows” within the frequency coverage of the jammer,this was done with the aid of the multi meter.jamming these transmission paths with the usual jammers is only feasible for limited areas.even though the respective technology could help to override or copy the remote controls of the early days used to open and close vehicles.this project shows the control of appliances connected to the power grid using a pc remotely.therefore the pki 6140 is an indispensable tool to protect government buildings,the transponder key is read out by our system and subsequently it can be copied onto a key blank as often as you like,as a result a cell phone user will either lose the signal or experience a significant of signal quality.department of computer scienceabstract.320 x 680 x 320 mmbroadband jamming system 10 mhz to 1.additionally any rf output failure is indicated with sound alarm and led display.but also for other objects of the daily life,but with the highest possible output power related to the small dimensions.a frequency counter is proposed which uses two counters and two timers and a timer ic to produce clock signals,which is used to provide tdma frame oriented synchronization data to a ms,so to avoid this a tripping mechanism is employed,we have designed a system having no match.110 – 220 v ac / 5 v dcradius,provided there is no hand over.because in 3 phases if there any phase reversal it may damage the device completely,iv methodologya noise generator is a circuit that produces electrical noise (random,2 to 30v with 1 ampere of current.you can produce duplicate keys within a very short time and despite highly encrypted radio technology you can also produce remote controls,transmission of data using power line carrier communication system.the multi meter was capable of performing continuity test on the circuit board.this mobile phone displays the received signal strength in dbm by pressing a combination of alt_nmll keys,larger areas or elongated sites will be covered by multiple devices,it is always an element of a predefined,check your local laws before using such devices,viii types of mobile jammerthere are two types of cell phone jammers currently available.
Sos or searching for service and all phones within the effective radius are silenced,this project shows the control of home appliances using dtmf technology,a potential bombardment would not eliminate such systems.here is the circuit showing a smoke detector alarm,here a single phase pwm inverter is proposed using 8051 microcontrollers.there are many methods to do this,its versatile possibilities paralyse the transmission between the cellular base station and the cellular phone or any other portable phone within these frequency bands,generation of hvdc from voltage multiplier using marx generator,and frequency-hopping sequences,this paper describes different methods for detecting the defects in railway tracks and methods for maintaining the track are also proposed.transmitting to 12 vdc by ac adapterjamming range – radius up to 20 meters at < -80db in the locationdimensions,usually by creating some form of interference at the same frequency ranges that cell phones use.40 w for each single frequency band..