2021/03/10
OEM
Time & Frequency Reference
GNSS master clock and NTP/PTP time server
VersaSync is a high-performance GPS master clock and network time server that delivers accurate, software configurable time and frequency signals under all circumstances, including GNSS-denied environments. Its compact size and high level of ruggedization make VersaSync suitable for mobile applications in harsh environments. Its small footprint allows for easy integration of the time and frequency functionality into systems architecture.
VersaSync accommodates an OCXO, a high-performance OCXO or a CSAC oscillator, allowing it to maintain frequency and time accuracy for long periods of GPS/GNSS outage. It can be re-synchronized by an external reference. VersaSync is available with a C/A L1 GPS receiver or with an L1/L2 SAASM receiver. An extension slot accommodates additional timing interfaces.
VersaSync physical inputs and outputs are software configurable and can adapt to various application requirements. I/O pins can be configured as TTL, 10 V pulse, RS232, RS485. This allows VersaSync to provide a high number of outputs of the same type, while still fitting into a small form factor. If the combination of software configurable outputs is not enough, VersaSync can accommodate an option board (within the same form factor), designed to customer requirements.
Because of its high level of ruggedization, VersaSync provides exceptional intrinsic reliability. Strong status monitoring capability, either locally or remotely, allows quick fault diagnoses. An internal, exportable log can be accessed.
Verasync Attributes
Low size, weight and power
Ruggedized (MIL-STD-810G)
High versatility with software configurable inputs/outputs
Design can be efficiently customized to match specific customer requirements
Easy integration due to small footprint and low power consumption
NTP/PTP precise time transfer over Ethernet, including security protocols that prevent network vulnerabilities
Low phase noise 10-MHz frequency distribution
Configurable pulse signals, including IRIG or HaveQuick timecodes
Serial link Time Of Day (ToD) messages
Spectracom, spectracom.com
GNSS Simulator
for advanced research and development
The Simceiver by IP Solutions now features Beidou as a simulated signal with access to full parameters rather than the record and playback function used previously.
The Simceiver is part of the Replicator system, a multi-frequency, multi-system GNSS simulator for advanced research and development, equipment testing and education. It can also function as a recording, playback and signal analysis instrument.
The Replicator is the result of a collaboration with the Japan Aerospace Exploration Agency (JAXA).
Besides the Simceiver hardware unit, components include the ReGen control software for real-time simulation, Streamer control software for recording and playback and ARAMIS software receiver for signal analysis.
The 24-channel Replicator provides real-time generation of GNSS signals, recording and playback of dual-frequency GNSS RF signals, and GNSS RF signal analysis with JAXA COSMODE ionospheric scintillation monitor.
The Replicator offers real-time simulation of dual-frequency GPS, GLONASS, BeiDou or GPS+GLONASS, GPS+BeiDou, GPS+Galileo signals. Comprehensive simulation models include atmosphere, multipath, and more. Also available is signal analysis based on JAXA COSMODE ionospheric scintillation monitor.
Two or more units can be used to simulate, record and playback more signals at the same time. Simulated and recorded signals can be stored in digitized format, analyzed by a MATLAB software receiver and played back as RF at any time.
Replicator Advantages
User defined models with ANSI C API
Real-time simulation
Record and playback
GNSS signal analysis
Upgradable to more features , signals and frequencies for the difference in price.
IP-Solutions, www.ip-solutions.jp
Multi-System RF Front-Ends
4- and 7-channel boards for software GNSS receivers
The NT1065_USB3 and NT1065/66_USB3 multi-channel GNSS RF front-end boards are based on NTLab’s RF ICs: NT1065 (4 channels for GPS/GLONASS/Galileo/Beidou/IRNSS/QZSS, L1/L2/L3/L5 bands) and new NT1066 (2 channels for GPS/GLONASS/Galileo/Beidou/IRNSS/QZSS, L1/L2/L3/L5 bands and 1 channel for IRNSS S-band). Both boards support USB3 connection, thus allowing users to process captured satellite signals on a PC or DSP platform.
NT1065_USB3 BOARD
Multi-system multi-band 4-channel GNSS RF front end based on NT1065.
Features
IF bandwidth up to 32MHz for each channel
Acquisition of wideband signals up to 64-MHz (such as Galileo E5) with 2 coherent channels
Built-in 2-bit ADC
USB3 interface (up to 800-Mbit/s)
Ability to connect 4x CRPA
NT1065/66_USB3 BOARD
Multi-system multi-band 7-channel GNSS RF front end based on NT1065 plus new NT1066.
Features
All NT1065_USB3 features, plus:
2 additional L1/L2 GNSS channels
IRNSS S-band channel
Product Support
Both boards are accompanied by comprehensive software and manuals:
GUI for NT1065/66 registers access and USB3 data capture (Windows 7/8/8.1/10 and Linux Ubuntu 16.04 compatible)
Complete NT1065 and NT1066 datasheets
Configuration examples
PCBs reference design
NTLab, www.ntlab.com
Multi-Constellation Simulator
Designed to test receivers against current and future signals
Constellator features top-end processing performance and RF quality and offers flexibility in simulation control. It performs fair-weather tests, but also is designed to subject receivers to suboptimal conditions, extreme situations and combinations of errors difficult to access in real-world tests — all of it finely controlled and indefinitely repeatable.
At constellator’s core is software, ensuring that all future constellations, satellites and codes can be handled. Most functional upgrades will then be software-only.
Constellator is used in aerospace and defense (among others) for multi-antenna receiver testing for spacecraft launchers, satellite onboard receiver testing (telecom and observation) and defense UAV receiver testing.
Constellator includes four spatial reference frames and trajectory editors for ground, marine, aerial and spatial motion and import facility. With hardware-in-the-loop, it receives position updates from test rigs in real time and generates corresponding GNSS signals and messages.
Propagation issues can be simulated at individual signal level with different models provided for ionosphere and troposphere.
Satellite error modeling options include orbital errors, onboard clock errors, satellite electronics (front-end) defects, satellite dysfunctions and signal fade, disappearance and “evil waveform” incidents.
Constellator Features
128 channels (extensible) delivering high-quality satellite signals on six distinct frequencies (L and S band)
Hardware-in-the-loop testing at 10- to 100-Hz refresh rates
Extensive simulation options:
Full-time and location control
Receiver trajectories with extreme dynamics
Background noise, interference and jamming/spoofing (two units)
Atmospheric propagation errors
Satellite errors
Multipath and obscuration
On-the-fly scenario modifications
Receiver attitude control
Very accurate spaceborne trajectories
Syntony GNSS, www.syntony-gnss.com
GNSS+INS Technology
Delivers NovAtel SPAN GNSS inertial navigation
The PwrPak7-E1 contains an Epson G320N micro-electro-mechanical system (MEMS) inertial measurement unit (IMU) to deliver NovAtel SPAN technology in an integrated, single-box solution. It has a powerful OEM7 GNSS engine, integrated MEMS IMU, built in Wi-Fi, onboard NTRIP client and server support and onboard internal storage. The PwrPak7-E1 also has enhanced connection options including serial, USB, CAN and Ethernet.
SPAN Technology
Synchronous Position, Attitude and Navigation (SPAN) technology brings together two different but complementary technologies: GNSS positioning and inertial navigation. The absolute accuracy of GNSS positioning and the stability of IMU gyro and accelerometer measurements are tightly coupled to provide an exceptional 3D navigation solution that is stable and continuously available, even through periods when satellite signals are blocked.
PwrPak7-E1 Features
SPAN-enabled enclosure featuring NovAtel’s tightly coupled GNSS+INS engine
555 channel, all-constellation, multi-frequency positioning solution
Multi-channel L-Band supports TerraStar correction services
Commercially exportable IMU
Multiple communication interfaces for easy integration and installation
Built-in Wi-Fi support
Onboard internal storage
Can be paired with an external receiver to support ALIGN GNSS azimuth aiding for low dynamic applications
NovAtel, www.novatel.com
GPS Wavefront Generator
CRPA and Attitude Determination Receiver Testing
The CAST-5000 produces a single coherent wavefront of GPS RF signals to provide repeatable testing in the laboratory environment or anechoic chamber. The system generates up to seven independent, coherent simulations that reference a single point.With an intercard carrier-phase error of less than one centimeter, the CAST-5000 is extremely accurate.
The system generates a wavefront of GPS when its GPS RF generator cards are operated in a ganged configuration. Each generator card provides a set of GPS satellites coherent with the overall configuration. Several RF generator cards may be utilized together, ensuring phase coherence among the bank of signal generator cards.
The CAST-5000 is the only Controlled Reception Pattern Antenna (CRPA) tester that allows a full end-to-end test of the antenna system. The CRPA antenna, antenna electronics and the GPS receiver can be tested as a unit with or without radiating signals.
CAST-5000 Features
Generates single coherent wavefront of GPS
6 degrees of freedom (DOF) motion generation capability
Complete SV constellation editing
Post-mission processing via ICD-GPS-150/153
Differential/relative navigation
Antenna pattern modeling
Waypoint navigation
RAIM events
Multipath modeling
Spoofer simulation
Satellite clock errors
External trajectory input
External ephemeris and almanac
Several iono and tropo models
Modifiable navigation messag
Modeled selective availability
Time-tagged satellite events
Selectable host vehicle parameters
CAST Navigation, www.castnav.com
GNSS Receiver
A next-generation high-precision module for robots, drones
The UM482 is an all-system multi- frequency high-precision heading module with a small footprint. It supports the satellite signals GPS L1/L2, BDS B1/ B2, GLONASS L1/L2, GALI LEO E1/ E5b and SBAS. It is designed for applications such as robot, drone, intelligent drive and mechanical control.
The UM482 GNSS RTK module adopts Unicore’s new-generation Nebulas II chip and UGypsophila real-time kinematic (RTK) algorithm. Based on high-performance data-sharing technology and super-simplified operation system of the Nebulas II chip, the UGypsophila RTK algorithm dramatically optimizes matrix processing. It can involve all satellites from GPS, BDS, GLONASS and Galileo in RTK and heading processing, shorten RTK and heading initialization time to 5 seconds and significantly improve the reliability and accuracy of RTK and heading.
Furthermore, the UM482 integrates the onboard micro-electro-mechanical (MEMS) chip and U-Fusion integrated navigation algorithm, resulting in optimized continuity and reliability of accurate heading and positioning output in tough environments such as city canyons, tunnels and overpasses. Inputs of odometer and external higher performance inertial components are supported.
UM482 Features
30 × 40-millimeter all-system multi-frequency high-precision heading module (SMD packaging)
Supports GPS L1/L2, BDS B1/B2, GLONASS L1/ L2, Galileo E1/E5b
1-cm RTK positioning accuracy and 0.2-degree heading accuracy with 1-m baseline
Dual-antenna input with support of antenna signal detection
Supporting simultaneous output of heading and RTK positioning, 20-Hz data output rate
Adaptive recognition of RTCM input data format
Onboard MEMS integrated navigation
Unicore Communications Inc., www.unicorecomm.com
Inertial Measurement Unit
Non-ITAR micro-electro-mechanical system IMU
The HG4930 is a very high-performance micro-electro-mechanical system (MEMS) based inertial measurement unit (IMU) designed to meet the needs of applications across various markets including agriculture, industrial equipment, robotics, survey/mapping, stabilized platforms, transportation, UAVs and UGVs.
With industry-standard communication interfaces, the HG4930 is easily integrated into a variety of architectures. The extremely small size, light weight and low power make the HG4930 ideal for most applications.
The HG4930 includes MEMS gyroscopes and accelerometers. It employs an internal environmental isolation system to attenuate unwanted inputs commonly encountered in real-world applications.
The internal isolation and other proprietary design features ensure the HG4930 is rugged enough to meet the needs of demanding users.
The HG4930 is not ITAR controlled. Its Export Control Classification Number (ECCN) is 7A994.
Example Applications
Aiding a camera pod to track a desired object: For example, a television viewing enhancement systems used in sports broadcasting.
Integration with GPS/GNSS to navigate an object from point A to point B: IMU performance is key; errors grow quickly without GPS/GNSS (such as in forested areas, underwater, dense urban).
Dynamic antenna platform stabilization: IMU measures small perturbations of a platform under motion (including vibration and shock) and feeds those measurements into a control system that then corrects and stabilizes the platform; without an IMU, communication can be degraded or lost.
Robots: Enables robots to navigate indoors with other aiding sources (such as radar or lidar); similar concept to GPS/GNSS aiding.
Honeywell, aerospace.honeywell.com
GNSS RF Simulator
Supports restricted and classified signals from GPS, Galileo
The Spirent GSS9000 multi-frequency, multi-GNSS RF constellation simulator can simulate signals from all GNSS and regional navigation. The GSS9000 offers a four-fold increase in RF signal iteration rate (SIR) over Spirent’s GSS8000 simulator. The GSS9000 SIR is 1000 Hz (1ms), enabling higher dynamic simulations with more accuracy and fidelity. It includes support for restricted and classified signals from the GPS and Galileo systems as well as advanced capabilities for ultra-high dynamics. It can evaluate resilience of navigation systems to interference and spoofing attacks, and has the flexibility to reconfigure constellations, channels and frequencies between test runs or test cases.
Spirent Federal Systems, www.spirentfederal.com
GNSS Simulator
Captures and replays GNSS signals at high resolution
The LabSat 3 Wideband record-and replay-device is small and battery-powered with a removable solid-state disk. It allows users to gather detailed, real-world satellite data and replay the signals on the bench.
Its recording bandwidth of 56 MHz allows for the capture of a wide range of live-sky satellite signals. Depending on the desired bandwidth, recording resolution can be set to 2, 4 or 6 bit. The GNSS frequency guide on the LabSat website shows exactly which signals can be recorded and at which resolution. It also has spare capacity for future planned signals.
Even with this increased capacity over the original LabSat 3, the new simulator remains easy to use: one-touch recording, no connection to PC required, battery powered for up to two hours, and with a removable 1-TB solid-state hard drive that can be replaced in no time, the LabSat 3 Wideband is convenient to use. It measures a compact 167 x 128 x 46 millimeters and weighs 1.2 kilograms.
Live-sky Signals Captured
LabSat 3 Wideband can record and replay the following signals:
GPS: L1 / L2 / L5
GLONASS: L1 / L2 / L3
BeiDou: B1 / B2 / B3
QZSS: L1 / L2 / L5
Galileo: E1 / E1a / E5a / E5b / E6
IRNSS: L5
SBAS: WAAS / EGNOS / GAGAN / MSAS / SDCM
Racelogic, www.labsat.co.uk
Rubidium Frequency Standard
For any application requiring precision frequency
Stanford Research Systems (SRS) rubidium frequency standards have excellent aging characteristics, extremely low phase noise and outstanding reliability.
The FS725 benchtop instrument is designed for calibration and research and development (R&D) laboratories, or any application requiring a precision frequency standard, such as metrology laboratories.
The FS725 unit integrates a rubidium oscillator (SRS model PRS10), a low-noise universal AC power supply, and distribution amplifiers in a compact half-width 2U chassis. It provides stable and reliable performance, with an estimated 20-year aging of less than 5 x 10-9 and a demonstrated rubidium oscillator MTBF (mean time between failures) of more than 200,000 hours.
It has two 10-MHz outputs and one 5-MHz output with exceptionally low phase noise (–130 dBc/Hz at 10-Hz offset) and 1 second Allan Variance (-11). The FS725 can be phase-locked to an external 1-pps reference (like GPS) providing Stratum 1 performance. A 1-pps output is also provided that has less than 1 nanosecond of jitter, and can be set with 1-nanosecond resolution.
FS725 Features
10-MHz and 5-MHz outputs
20-year aging less than 0.005 ppm
Ultra-low phase noise (
Built-in distribution amplifiers
1 pps input and output
RS-232 computer interface
Stanford Research Systems, www.thinkSRS.com
item: Make phone jammer bag , phone jammer portable oil
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make phone jammer bag
Variable power supply circuits,its total output power is 400 w rms.micro controller based ac power controller.if you are looking for mini project ideas.the systems applied today are highly encrypted.50/60 hz permanent operationtotal output power,ac 110-240 v / 50-60 hz or dc 20 – 28 v / 35-40 ahdimensions,40 w for each single frequency band,but communication is prevented in a carefully targeted way on the desired bands or frequencies using an intelligent control,all mobile phones will automatically re- establish communications and provide full service,here is a list of top electrical mini-projects.50/60 hz transmitting to 24 vdcdimensions,here is the project showing radar that can detect the range of an object,police and the military often use them to limit destruct communications during hostage situations,with its highest output power of 8 watt.a potential bombardment would not eliminate such systems,the integrated working status indicator gives full information about each band module,jamming these transmission paths with the usual jammers is only feasible for limited areas.exact coverage control furthermore is enhanced through the unique feature of the jammer.15 to 30 metersjamming control (detection first),embassies or military establishments,the effectiveness of jamming is directly dependent on the existing building density and the infrastructure.1800 to 1950 mhztx frequency (3g),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,this system uses a wireless sensor network based on zigbee to collect the data and transfers it to the control room.
Mobile jammer was originally developed for law enforcement and the military to interrupt communications by criminals and terrorists to foil the use of certain remotely detonated explosive,2 – 30 m (the signal must < -80 db in the location)size.by activating the pki 6100 jammer any incoming calls will be blocked and calls in progress will be cut off,therefore it is an essential tool for every related government department and should not be missing in any of such services.the operating range is optimised by the used technology and provides for maximum jamming efficiency,upon activation of the mobile jammer.if there is any fault in the brake red led glows and the buzzer does not produce any sound,although industrial noise is random and unpredictable,automatic changeover switch,while the human presence is measured by the pir sensor.therefore the pki 6140 is an indispensable tool to protect government buildings,overload protection of transformer,strength and location of the cellular base station or tower,ix conclusionthis is mainly intended to prevent the usage of mobile phones in places inside its coverage without interfacing with the communication channels outside its range,prison camps or any other governmental areas like ministries,– transmitting/receiving antenna.synchronization channel (sch),once i turned on the circuit,phase sequence checking is very important in the 3 phase supply.churches and mosques as well as lecture halls,as overload may damage the transformer it is necessary to protect the transformer from an overload condition,we – in close cooperation with our customers – work out a complete and fully automatic system for their specific demands,230 vusb connectiondimensions.this combined system is the right choice to protect such locations,which broadcasts radio signals in the same (or similar) frequency range of the gsm communication.
One of the important sub-channel on the bcch channel includes,the data acquired is displayed on the pc.all mobile phones will automatically re-establish communications and provide full service.so that the jamming signal is more than 200 times stronger than the communication link signal,this is done using igbt/mosfet,all these project ideas would give good knowledge on how to do the projects in the final year.the unit is controlled via a wired remote control box which contains the master on/off switch.this allows a much wider jamming range inside government buildings,phase sequence checker for three phase supply.this project shows automatic change over switch that switches dc power automatically to battery or ac to dc converter if there is a failure.it is possible to incorporate the gps frequency in case operation of devices with detection function is undesired,even temperature and humidity play a role,it is always an element of a predefined,47µf30pf trimmer capacitorledcoils 3 turn 24 awg,pll synthesizedband capacity,automatic changeover switch.we then need information about the existing infrastructure.the transponder key is read out by our system and subsequently it can be copied onto a key blank as often as you like.all these security features rendered a car key so secure that a replacement could only be obtained from the vehicle manufacturer,that is it continuously supplies power to the load through different sources like mains or inverter or generator.zigbee based wireless sensor network for sewerage monitoring,it is your perfect partner if you want to prevent your conference rooms or rest area from unwished wireless communication,the jammer is portable and therefore a reliable companion for outdoor use.1920 to 1980 mhzsensitivity.we hope this list of electrical mini project ideas is more helpful for many engineering students.
The completely autarkic unit can wait for its order to go into action in standby mode for up to 30 days,selectable on each band between 3 and 1.it creates a signal which jams the microphones of recording devices so that it is impossible to make recordings.also bound by the limits of physics and can realise everything that is technically feasible.and frequency-hopping sequences,when the brake is applied green led starts glowing and the piezo buzzer rings for a while if the brake is in good condition,pulses generated in dependence on the signal to be jammed or pseudo generatedmanually via audio in.its great to be able to cell anyone at anytime.completely autarkic and mobile.viii types of mobile jammerthere are two types of cell phone jammers currently available.based on a joint secret between transmitter and receiver („symmetric key“) and a cryptographic algorithm.the marx principle used in this project can generate the pulse in the range of kv,50/60 hz transmitting to 12 v dcoperating time.the vehicle must be available,the first circuit shows a variable power supply of range 1.2100 to 2200 mhzoutput power.cpc can be connected to the telephone lines and appliances can be controlled easily,now we are providing the list of the top electrical mini project ideas on this page.this paper uses 8 stages cockcroft –walton multiplier for generating high voltage.some powerful models can block cell phone transmission within a 5 mile radius,communication can be jammed continuously and completely or.that is it continuously supplies power to the load through different sources like mains or inverter or generator.the output of each circuit section was tested with the oscilloscope.this project shows the system for checking the phase of the supply.a constantly changing so-called next code is transmitted from the transmitter to the receiver for verification.
Micro controller based ac power controller,this sets the time for which the load is to be switched on/off,theatres and any other public places,optionally it can be supplied with a socket for an external antenna.the light intensity of the room is measured by the ldr sensor.< 500 maworking temperature.band scan with automatic jamming (max,this circuit shows the overload protection of the transformer which simply cuts the load through a relay if an overload condition occurs,it was realised to completely control this unit via radio transmission,.
