Selected articles for topic: radio frequency (rf) detection device

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Freevolt™ - Low Energy IoT

RF Energy Harvesting

For the Low Energy Internet of Things

Imagine a world where your device never needs to be plugged in to charge but is powered from free, unused energy that is in the air around us.

Freevolt[TM] is a brand new innovative technology that provides power for Low Energy Internet of Things (LE-IoT) devices. Its a patent-pending, pioneering technology that harvests radio frequency...

Website: http://www.getfreevolt.com

RFID Systems - barcode solutions

Is RFID new?

RFID is a proven technology that's been around since at least the 1970s. Up to now, it's been too expensive and too limited to be practical for many commercial applications. But if tags can be made cheaply enough, they can solve many of the problems associated with bar codes. Radio waves travel through most non-metallic materials, so they can...

Website: http://www.barcode-solutions.com

How To Measure WiFi and Cell Phone Radiation

Motivation, Inspiration and Hope for a Healthy, Joyful, Vibrant Life

How To Measure WiFi and Cell Phone Radiation

Posted on April 18, 2011 by JINI Health and Gut Stuff

As the mother of three children - with thinner skulls, higher water content in their skulls (= higher conductivity) and undeveloped immune systems - it is very important to find out what levels of microwave RF radiation my kids are...

Website: http://blog.listentoyourgut.com

Related topics : radio frequency (rf) detection device

Radio-Frequency Identification (RFID) in the Retail ...

RFID stands for Radio Frequency Identification -- a technology whose use is growing fast, and which has major implications for consumers, particularly with regard to privacy.

What is RFID technology?

As its name implies, RFID is an ID-identification-system. It relies on a small chip that is implanted in a tag. The chip can record and store data, such as a serial number, price or purchase record....

Date: 2017-03-04 00:58:06
Website: ic.gc.ca

RFID tag | The IT Law Wiki | Fandom powered by Wikia

Form factor .

Tags can be attached to items using an adhesive or can be embedded within the item. The primary concern when a tag is attached to an item is how easily it might be detached, whether accidentally or maliciously. Tags attached to items also are more vulnerable to harsh environmental conditions such as dust, debris, humidity, precipitation, and extreme temperatures. However, the...

Date: 2013-12-13 16:36:05
Website: http://itlaw.wikia.com

How To Remove Security Tag « Security Tag Remover

Ends in 13d 4h

o Magnetic Remover o Ultramax Remover o Supertag Remover

The magnetic tag removers are basically used for removing the hard plastic security clothing tags. There are varying shapes and sizes available with these removers and the strength also differs. The basic designs in magnetic tag removers are Sensormatic, Knogo and Checkpoint and they are also known as...

Date: 2018-01-08 12:35:07
Website: http://www.securitytagremover.com

RFID Vs Contactless Smart cards – An unending debate

RFID Vs Contactless Smart cards - An unending debate

Date Published: 4 Oct 2006

By Parul Oswal, Senior Research Analyst, RFID, and Michelle Foong, Senior Research Analyst, Smart Cards, Industrial Technologies Frost & Sullivan Asia Pacific.

The debate between RFID and smart cards technology is an ongoing one. There is no clear definition that describes RFID and smart cards, and at times these two...

Website: frost.com

Wireless - Wikipedia

Wireless communication spans the spectrum from 9 kHz to 300 GHz.[ citation needed ]

Mobile telephones[ edit ]

One of the best-known examples of wireless technology is the mobile phone , also known as a cellular phone, with more than 4.6 billion mobile cellular subscriptions worldwide as of the end of 2010. [8] These wireless phones use radio waves from signal-transmission towers to enable their...

Date: 2017-03-03 05:11:08
Website: https://en.wikipedia.org

Related topics : radio frequency (rf) detection device

Wireless - Wikipedia

Wireless communication spans the spectrum from 9 kHz to 300 GHz.[ citation needed ]

Mobile telephones[ edit ]

Date: 2017-03-03 05:13:30
Website: https://en.wikipedia.org

Related topics : radio frequency (rf) detection device

100W Transmitter RF Power Amplifier 2SC2782 - Electronics DIY

This is a 6m band transmitter RF power amplifier (50 MHz) with 100W output. It used with my FT-736R and drive from 10W for the 6m SSB DX. The Building information comes from Japan CQ Magazine. The Toshiba RF bipolar power transistor is used in it. If you want to construct this rf amplifier, it's the better way if the double side PCB use for increase the grounding and current transfer. The TX...

Website: http://electronics-diy.com

Smart Shelf Technology Shapes Retailing - pointofsale.com

Smart Shelf Technology Shapes Retailing

�

Digital Transformation is riding the next wave of innovation in the retail industry.� E- retailers are enticing the shoppers with 'anywhere any time' shopping, faster delivery, personalized offers and easy returns. To keep in pace with the technology advancements and increasing competition from the online space, retailers are now rethinking of their...

Website: https://pointofsale.com

Radio-Frequency Identification (RFID) in the Retail ...

Not all retail tags are RFID -based

Not all electronic tags on retail goods are RFID / EPC tags. They may instead be radio frequency (RF) security tags. RF security tags do not have a unique identification number, and do not store data or allow linkages to other databases. These use radio signals to send a code to the store's security system, and trigger an alarm when a product leaves the...

Date: 2017-03-04 00:43:09
Website: ic.gc.ca

Which RFID Frequency is Right for Your Application?

October 29, 2012

By Shain Armstrong 31 Comments

LF, HF, and UHF

Similar to how a radio must be tuned to different frequencies to hear different channels, RFID tags and readers have to be tuned to the same frequency in order to communicate. There are several different frequencies an RFID system can use. Generally, the most common are

Low...

Website: blog.atlasrfidstore.com

Detector (radio) - Wikipedia

Envelope detector[ edit ]

A simple envelope detector

A simple crystal radio with no tuned circuit can be used to listen to strong AM broadcast signals

One major technique is known as envelope detection. The simplest form of envelope detector is the diode detector that consists of a diode connected between the input and output of the circuit, with a resistor and capacitor in parallel from the...

Date: 2017-02-12 03:44:53
Website: https://en.wikipedia.org

Which RFID Frequency is Right for Your Application?

October 29, 2012

By Shain Armstrong 37 Comments

LF, HF, and UHF

Low...

Website: blog.atlasrfidstore.com

Best RF Signal Detector Reviews 2019 - Consumer Reports

Homder RF detector is best to work finding you the signal of spy camera, eavesdropping and GPS tracker. This design is very functional, having a high sensitivity and accuracy to detect and report the signals.

It is small, portable and very easy to install and use. The range it works well is between 0 and 16.5 ft at the frequency 1MHz - 6.5GHz. In addition, it has a long life battery attached. 2...

Website: https://www.reviewthebests.com

RFID Equipment » Products » TPI » Experts in wireless ...

Click here to see all RFID products

RFID Overview

Radio Frequency ID (RFID) is one of the industry's hottest technologies. There are large amounts of information published on the subject, stemming largely from the recent announcements of interest from major companies like Wal-Mart, the Department of Defense, International Paper, and Proctor and Gamble.

Radio Frequency Identification (RFID)...

Website: http://www.tpi1.com

RFID-Based Security System - electronicsforu.com

A radio-frequency identification (RFID) based access-control system allows only authorised people to enter a particular area of an establishment. Authorised people are provided with unique tags, using which they can access that area. This RFID based security system is based on micro controller AT89C52 and comprises a RFID module, a LCD module for displaying the status and a relay for opening the...

Website: electronicsforu.com

RFID Based Security System | Circuit Diagram Available

RFID Based Security System

This circuit is a security system that uses RF tags as security credentials. It comprises of a microcontroller AT89C52 and an RFID reader. -- By Bikramjeet Waraich

July 5, 2017

GET A FREE PASS TO IOTSHOW AND INDIA ELECTRONICS WEEK

A radio-frequency identification (RFID) based access-control system allows only authorised people to enter a particular area of an...

Website: electronicsforu.com

Can burglars jam your wireless security system? - CNET

Can burglars jam your wireless security system?

We examined claims that popular wireless security kits come with new vulnerabilities.

February 11, 2015 2:12 PM PST

Colin West McDonald/CNET

Any product that promises to protect your home deserves a heightened level of scrutiny. To that end, it isn't surprising that you'll find plenty of strong opinions about the potential vulnerabilities of...

Date: 2017-12-10 04:00:45
Website: https://www.cnet.com

AP_Config - Enterprise Wireless LAN Solutions

XML API server profile--Specifies the IP address of an external XML API server.

RFC 3576 server--Specifies the IP address of a RFC 3576 RADIUS server.

MAC authentication profile--Defines parameters for MAC address authentication, including upper- or lower-case MAC string, the diameter format in the string, and the maximum number of authentication failures before a user is blacklisted.

Captive...

Website: http://www.arubanetworks.com

GoTEK7 - Real Time GPS Tracker - Tracking Device - GPS ...

GoTEK7 - Real Time GPS Tracker - Tracking Device - GPS Trackers

o Combined Tracking Technology

oÂ Ultra Low Power Consumption

o Indoor Tracking

NEW Updates : SIGFOX tracking update in the UK - Major cities like Manchester and Birmingham

A new world is coming...

where things can communicate with us

Ã?

|3G Bonds for the USA

You can now download our New App GoTEK7 Products with all our news, all...

Website: https://www.gotek7.com

Basics of Designing a Digital Radio Receiver (Radio 101 ...

This paper introduces the basics of designing a digital radio receiver. With many new advances in data converter and radio technology, complex receiver design has been greatly simplified. This paper attempts to explain how to calculate sensitivity and selectivity of such a receiver. It is not by any means an exhaustive exposition, but is instead a primer on many of the techniques and calculations...

Website: analog.com

Dragon Guard - Security tag,EAS system,eas tag,am soft ...

Established in 2004, DRGON GUARD is one of the leading manufacturers of anti-shoplifting EAS system and security tag label products in China.

With more than 10 years' experience and advanced technological expertise in the manufacture of Radio-Frequency and Acoustic-Magnetic EAS products We offer a wide range of electronic��article�surveillance products including self-alarm tags, safers,...

Date: 2017-02-21 14:49:21
Website: http://www.dragon-guard.com

Examining the Elements of a Basic RFID System - dummies

Learning the fundamentals of RFID can be overwhelming. By understanding the basics of how data travels in waves and then through a network in an RFID system, however, you gain a solid foundation for greater knowledge as you explore the global architecture of RFID.

In a basic RFID system, four fundamental components are required for data to make its grand journey:

A transponder (more commonly just...

Website: http://www.dummies.com

Ramseytest.com - Ramsey RF Shielded Test & Forensics ...

Contact

In 1997 Ramsey Electronics® took technicians out of large expensive shielded screen rooms and put RF shielding into the palms of their hands. Our patented portable benchtop RF Shielded Test Enclosure was a revolution in RF testing, providing unprecedented visual and hands-on access to equipment in a tightly controlled RF-free test environment. With tens of thousands of Ramsey...

Website: http://ramseytest.com

Related topics : radio frequency (rf) detection device

Security tag,EAS system,eas tag,am soft label,anti-theft ...

Established in 2004, DRAGON GUARD is one of the leading manufacturers of anti-shoplifting EAS system and security tag label products in China.

Date: 2018-12-02 08:29:04
Website: http://www.dragon-guard.com

Management of RFID in Libraries, by Karen Coyle

Management of RFID in Libraries

By Karen Coyle

Preprint version of article published in the Journal of Academic Librarianship, v. 31, n. 5, pp. 486-489

Much has already been written about the use of RFID in libraries, such as the excellent article by Laura Smart [1] , and the works by Richard W. Boss [2] [3] for the American Library Association. These articles give details on the use of RFID in...

Date: 2010-01-07 02:11:18
Website: http://www.kcoyle.net

CC2500 Low Cost, Low-Power 2.4 GHz RF Transceiver ... - TI.com

Companion products

Description

The CC2500 is a low-cost 2.4 GHz transceiver designed for very low-power wireless applications. The circuit is intended for the 2400-2483.5 MHz ISM (Industrial, Scientific and Medical) and SRD (Short Range Device) frequency band.

The RF transceiver is integrated with a highly configurable baseband modem. The modem supports various modulation formats and has a...

Website: http://www.ti.com

Robots track moving objects using RFID tags to home in on ...

A novel system developed at MIT uses RFID tags to help robots home in on moving objects with unprecedented speed and accuracy. The system could enable greater collaboration and precision by robots working on packaging and assembly, and by swarms of drones carrying out search-and-rescue missions.

In a paper being presented next week at the USENIX Symposium on Networked Systems Design and...

Website: https://techxplore.com

Cisco Aironet 1560 Series Outdoor Access Point Hardware ...

Cisco Aironet 1560 Series Outdoor Access Point Hardware Installation Guide

Book Contents

Chapter: Installing the Access Point

Chapter Contents

Installing the Access Point

This chapter describes how to install the 1560 access point and its accessories. It contains the following sections:

To unpack the access point, follow these steps:

Step 1 Open the shipping container and carefully remove...

Website: http://www.cisco.com

Radio Frequency Identification (RFID) 101 - AIM

A basic�Radio Frequency Identification (RFID) system consists of three components:

An antenna or coil

A transceiver (with decoder)

A transponder (RF tag) electronically programmed with unique information

The antenna emits radio signals to activate the tag and to read and write data to it.

The reader emits radio waves in ranges of anywhere from one inch to 100 feet or more, depending upon its...

Website: http://www.aimglobal.org

RFID and Inventory Control - ADC Barcode

RFID and Inventory Control

What is RFID?

RFID stands for Radio-Frequency Identification - which is a small tag like electronic devices that consist of a small chip and an antenna. The chip is capable of carrying 2,000 bytes of data or less.

The RFID device serves the same purpose as a barcode or magnetic strip on the back of a credit/debit card; it provides a unique identifier for that object....

Date: 2017-11-15 18:52:59
Website: adcbarcode.com

16-bit 32-bit MCU | Low-power MCUs | Getting Started ...

Advanced computing - up to 48MHz and lowest active power

High performance sensing - 1MSPS ADC and fast processing through serial communications interfaces

Design headroom - up to 512 KB Flash memory and 64 KB RAM for advanced algorithms, image processing and connectivity stack support

Minimize discrete components - integrated power management, analog, USB interface, LCD peripherals and security...

Date: 2018-01-12 06:15:17
Website: http://www.ti.com

Arduino RF link using 433MHz Transmitter / Receiver modules

If you are looking into wireless communication between two Arduino modules, this project might be helpful. It uses low costs RF transmitter and receiver from Electronics-DIY.com to establish radio link between two Arduino boards up to 500 ft. Data can be transferred serially at the maximum rate of 2400 bps. The schematic shows how receiver and transmitter is hooked up to two different Arduino...

Website: http://electronics-diy.com

List of ECE(Electronic) Projects: Projects Q A, Guidance ...

Multi Channel Frequency Measurement with LCD Display

Multi Channle Voltage Measurement with LCD Display

Multi Channle Voltage Measurement with PC Display

Multi Channel Frequency Measurement with PC Display

Microcontroller based GPS Navigator with Google Earth Interface and MMC/SD 1GB Card Data Logging

GPS+GSM based Realtime Bus/Train Location Finder and display on Earth's Map

Microcontroller...

Website: http://projectsqa.com

Glossary | Support | Visonic Wireless Security

24 Hour Zone

Zone that is continuously active regardless of whether the alarm system is armed or disarmed (can be a panic button or a smoke detector). Most of Visonic's control panels are with 28 zones.

Abort Period

When an alarm is initiated, the internal sounder is activated first for a limited period of time, which is the abort period set by the installer. If an alarm goes off...

Website: http://www.visonic.com

Security and Alarm System Operation & Diagnosis on Range ...

Alternative "Key in Position II" Disarming Procedure

An alternative procedure for getting the system out of disabled mode is to disconnect the battery, and reconnect it with the key in position II. Steve Glover of New Zealand tried this with great success on his 1999 Range Rover Autobiography. "We recently lost the only key that worked by remote on the vehicle. Our second key had stopped...

Website: http://www.rangerovers.net

Disadvantages of RFID. Mostly Minor Or You Can Minimize Them.

Disadvantages of RFID

Most Are Easy to Overcome

Many of the Disadvantages of RFID are minor, and if you can minimize the rest, you can reap the significant benefits that RFID technology has to offer.

While Radio Frequency IDentification technology may be right for a large operation, for a smaller one you may want to consider the setup and ongoing costs carefully, and compare them with other...

Website: wireless-technology-advisor.com

Disadvantages of RFID. Mostly Minor Or You Can Minimize Them.

Many of the Disadvantages of RFID are minor, and if you can minimize the rest, you can reap the significant benefits that RFID technology has to offer.

While Radio Frequency IDentification technology may be right for a large operation, for a smaller one you may want to consider the setup and ongoing costs carefully, and compare them with other technologies such as bar coding.

Before deciding,...

Website: wireless-technology-advisor.com

FobGuard® security pouch: Faraday Cage for Car Keyless ...

Business Insider: Power Amplifiers Helping Car Thieves

Thieves operate in pairs and take the faint whisper from the key fob in your house, work or on your person, and then amplify or relay it to make it heard by your car as if your fob it was in their hands! Here's how it works:

The first thief "listens" for your fob signal. They might follow you into a store or cafe, or stand next to the...

Website: fobguard.com

How RFID Works - Technovelgy

How does RFID work? A Radio-Frequency IDentification system has three parts:

A scanning antenna

A transceiver with a decoder to interpret the data

A transponder - the RFID tag - that has been programmed with information.

The scanning antenna puts out radio-frequency signals in a relatively short range. The RF radiation does two things:

It provides a means of communicating with the transponder (the RFID tag) AND

It provides the RFID tag with the energy to communicate (in the case of passive RFID tags ).

This is an absolutely key part of the technology; RFID tags do not need to contain batteries, and can therefore remain usable for very long periods of time...

Website: http://www.technovelgy.com

What to do about RFID chips in your wallet - TechRepublic

Have you wondered about the security implications of RFID chips in your driver's license, credit cards, and passport? The growing prevalence of RFID transponders in these items, and others, can raise security concerns. You should know what issues arise, and what you can do about them.

Google Plus

Anyone who has read Cory Doctorow's Little Brother -- mentioned in a previous article, Five good...

Website: techrepublic.com

The Truth About Smart Meter Dangers & Its Health Risks

emf exposure , health risks , rf exposure , smart meter measurements , Smart Meters

As smart meter installation continues, consumers have questions about the safety of this device, more specifically people want to know if there are smart meter dangers that can cause health related problems. In fact, our office has received a large number of calls from individuals which state that they have...

Website: http://www.emfrf.com

Related topics : radio frequency (rf) detection device

What to do about RFID chips in your wallet - TechRepublic

Google Plus

Anyone who has read Cory Doctorow's Little Brother -- mentioned in a previous article, Five good...

Website: techrepublic.com

3D RFID Simulation and Design - Factory Automation ...

3D RFID Simulation and Design - Factory Automation

Wei Liu1 and Ming Mao Wong1

[1] Singapore Institute of Manufacturing Technology, Singapore 71 Nanyang Drive, Singapore 638075,

1. Introduction

The chapter addresses the problem by presenting an analytical model for a 3-dimensional single folded loop antenna with detection coverage in space. Based on the antenna theory, the inductance and...

Website: intechopen.com

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