#UHF reader

[techtease]

UHF Reader Based on Pico W & ESP32 with 50 Tags/Second Reading within 1.5 Meter Range

A UHF Reader (Ultra High Frequency Reader) is a device that is used to read and write data from UHF RFID tags within the 860MHz-960MHz frequency range. It is a multi tags 50 tags/second reading/writing device within 1-1.5 meter range designed with cutting edge UHF technology. It is a compact, portable and easy to use device. 

The UHF reader has 2 variants: one is UHF Reader by Pico W and another is UHF Reader by ESP32. The Pico W variant comes with RP2040 microcontroller with Wi-Fi and BLE support. It is compatible with MicroPython, CircuitPython and Arduino for programming. ESP32 variant comes with ESP32 S3 series microcontroller and has 2.4GHz & Bluetooth 5 (LE) support. It is compatible with Arduino and Espressif IDE for programming. 

Key Features and Specifications:

UHF Reader Pico Variant: 

Powered by Raspberry Pi Pico W

RP2040 microcontroller dual-core Arm Cortex M0+ microprocessor with 264kB RAM

Supports Wi-Fi and BLE

1.14” TFT display for better visualization

Multi-tone buzzer for audio alerts

Micro USB Support for programming & Type C support for power

3 programmable buttons and Reset button

SD card slot for data storage/transfer

LED Status for power and battery charging

Multipurpose GPIOs breakout for interfacing external peripherals

SWD pins breakout for serial debugging

Supports MicroPython, CircuitPython, and Arduino for programming 

UHF Reader ESP32 Variant: 

Powered by ESP32 S3 WROOM-1

Dual-core 32 bit LX7 microprocessor with Up to 8 MB PSRAM and up to 16 MB flash memory

Supports 2.4GHz (802.11b/g/n) Wi-Fi and Bluetooth 5 (LE)

1.14” TFT display with ST7789 display driver

Comes with a Read and Write UHF module. 

Frequency range of 865.1MHz-867.9MHz (for EU/UK) and 902.25MHz-927.75MHz (for US) 

Can Identify 50 tags/second up to the 1.5-meter range. 

TTL UART communication interface and communication baud rates 115200bps-38400bps 

output power 18-26dBm and output power accuracy +/- 1dB 

operation current 180mA at 3.5V (26 dBm Output), 110mA at 3.5V (18 dBm Output) 

Multi-tone buzzer for audio alerts 

2 user programmable buttons, Boot and Reset buttons

For power and programming support, the Type C Interface

SD Card slot for data transfer/storage

LED status for power and charging

Multipurpose GPIOs breakout for interfacing external peripherals

Supports Arduino and Espressif IDE for programming

By using ESP32 and RP2040, you can build a UHF RFID reader for scan tags and data tracking. This UHF Reader with ESP32 and Pico by SB Components is suitable for applications like warehouses, retail stores, and many other applications where you want to track your inventory data accurately.

[sb-components]

UHF Reader Based On Pico W / ESP32 At Best Price

Introducing the UHF Reader, the rapid multi-tag reading device that is revolutionizing how you manage your inventory. With a range of up to 1.5 meters and the ability to read 50 tags in just 50 seconds, the UHF Reader is the ultimate solution for efficient and effective inventory management.

Designed with cutting-edge UHF technology, this reader is capable of capturing and processing vast amounts of data from RFID tags, allowing you to accurately and quickly identify your inventory items, streamline your operations, and boost your productivity.

Whether managing a large warehouse, retail store, or any other business with high-volume inventory, the UHF Reader will simplify your work, save you time and money, and improve your overall performance.

The UHF Reader is ideal for a wide range of industries and applications, including Warehousing and logistics, Retail, Manufacturing, etc.

The device is compact, portable, and easy to use, with a user-friendly interface that requires minimal training. Its rugged construction and reliable performance make it a durable and dependable choice for any business, and its compatibility with most existing RFID tags means you can start using it immediately.

Don't waste any more time manually tracking your inventory. Invest in the UHF Reader today and take your business to the next level.

[fionayao2008]

Tripod Turnstile Overview Tripod Turnstile, Swing Turnstile, as well as Flap Turnstile( RS Security Co., Ltd: www.szrssecurity.com) are modern-day control devices for pedestrian flows. They are made use of in position where the entrance and also departure of individuals need to be controlled, such as smart neighborhoods, canteens, resorts, galleries, gyms, clubs, subways, terminals, docks, and so on location. Making use of Tripod Turnstile, Swing Turnstile, as well as Flap Turnstile can make the flow of individuals orderly. Tripod Turnstile, Swing Turnstile, Flap Turnstile are made use of in combination with smart cards, finger prints, barcodes and also other identification system equipment to create an intelligent gain access to control channel control system; they are used in mix with computer systems, access control, participation, billing monitoring, ticket systems as well as other software program to develop a The smart Turnstile Gate thorough monitoring system can realize functions such as access control, attendance, consumption, ticketing, and current limiting. This Turnstile Gate administration system belongs to the "all-in-one card" as well as is mounted at flows such as neighborhoods, factories, wise buildings, canteens, etc. It can complete different management functions such as worker card traveling control, attendance at get off job as well as meals, and dining. Tripod Turnstile system attributes Fast and also practical: review the card in and out with one swipe. Utilize the authorized IC card and wave it before the wise Tripod Turnstile visitor to complete the Tripod Turnstile gate opening and also charge recording job. The card analysis is non-directional and the analysis as well as composing time is 0.1 seconds, which is quick and also practical. Protection and also confidentiality: Use history or local confirmation, authorized issuance, as well as unique identification, that is, the card can just be used in this system, and also it is confidential and also risk-free. Reliability: Card radio frequency induction, trustworthy and also steady, with the capacity to judge and also assume. Flexibility: The system can flexibly set entry as well as departure control workers consents, amount of time control, cardholder credibility as well as blacklist loss coverage, including cards as well as various other features. Versatility: Through authorization, the individual card can be utilized for "one-card" management such as parking, participation, access control, patrol, intake, and so on, making it very easy to understand numerous uses of one card. Simpleness: Easy to set up, basic to attach, the software application has a Chinese user interface as well as is very easy to operate. Tripod Turnstile, Swing Turnstile, and also Flap Turnstile( RS Security Co., Ltd: www.szrssecurity.com) are modern-day control tools for pedestrian passages. The usage of Tripod Turnstile, Swing Turnstile, and Flap Turnstile can make the flow of people orderly. Use the accredited IC card and also wave it in front of the clever Tripod Turnstile visitor to complete the Tripod Turnstile gate opening as well as fee recording work.

[harshmishra8726]

Jewelry showrooms, known for displaying high-value and exquisite pieces, face unique challenges regarding inventory management, security, and efficient customer service. Managing hundreds or even thousands of high-end items manually can be overwhelming, time-consuming, and prone to human error. Enter RFID (Radio Frequency Identification) technology, transforming jewelry showrooms' operation. RFID jewelry tags revolutionize showroom management by providing seamless tracking, improving security, and offering real-time inventory updates.

[rfid4uposts]

Impinj Speedway R420

The Impinj Speedway R420 is a powerful RFID reader designed for high-volume, high-density environments. With exceptional read accuracy and support for up to 32 antennas, it's perfect for applications in retail, logistics, and healthcare. The R420 ensures reliable performance and seamless integration for efficient asset tracking and inventory management.

[encstore]

C72 UHF Handheld RFID Reader| Portable UHF RFID Android Reader | India

Here's a shortened and simplified product description highlighting the key features and applications of the Chainway C72 UHF RFID Handheld Reader:

The Chainway C72 is a powerful and versatile UHF RFID handheld reader perfect for industrial and commercial use. With its long 30m read range, fast 1200 tags/second reading speed, and advanced features like barcode scanning and NFC capabilities, it offers flexibility and efficiency for asset tracking, inventory management, supply chain operations, and warehouse management.

This rugged reader boasts an octa-core processor, Android UI, Bluetooth connectivity, and a long-lasting 8000mAh battery. It supports multiple UHF frequencies and complies with ISO standards, ensuring compatibility and reliable performance.

Key Features:

30m long-range reading indoors and outdoors

Reads up to 1200 tags per second

Barcode scanning and NFC capabilities

Rugged and water-resistant (IP65) design

Android UI and Bluetooth connectivity

Long-lasting 8000mAh battery

Applications:

Asset tracking and management

Inventory control and warehouse operations

Retail and supply chain management

Library and healthcare inventory tracking

With its advanced capabilities and robust design, the Chainway C72 UHF RFID Handheld Reader offers an efficient solution for various industries, delivering high accuracy and performance.

[globaldataservice]

Is A UHF RFID Tag the Perfect Choice For Asset Management?

Of course, UHF RFID is the best way to manage assets easily in recent times. Asset tracking is the most excellent asset management strategy for rental organizations and retail shops. Wireless technology is getting more popular, which can change the way of asset tracking and management. These days, rental organizations are switching to RFID technology because of its simplicity and efficiency. RFID utilizes radio waves for gathering data, and RFID tags come with chips. If you want to purchase bulk RFID tags for asset tracking, you can choose Eco Track Systems. They offer a variety of quality RFID devices at a reasonable price. 

Ø  Accurate and real-time asset tracking

RFID tags offer accurate data regarding the product that is helpful for Rental Companies. They have numerous equipment and asset, so it is essential to keep track of everyone. If some equipment is unavailable in the organization because of a lack of maintenance, you can check the asset tag data and take quick action. This asset tracking technology allows you to find equipment where it is located. 

Ø  RFID gather information 

When assets are going out or coming in, the RFID collect information. It provides essential information for the rental organization. They can use this technology to grow the business without difficulty. In addition, it provides extra edges to the asset rental business. Those who decide according to accurate data can obtain the desired outcome. You can buy quality RFID products from the best RFID Tag Suppliers India.

Ø  Track and monitor maintenance

The rental company has many assets that need regular maintenance. If the organization works manually, they miss asset maintenance, leading to sudden device failure and costly repairs. With the help of the latest technology, the person can maintain assets effectively. In addition, RFID tags assist in tracking and monitoring expenses affordable and offer excellent maintenance history. It enables the user to obtain more information regarding assets.

Read more:

https://storywebarticles.wixsite.com/storywebarticles/post/is-a-uhf-rfid-tag-the-perfect-choice-for-asset-management

[lizzaneia-elizalde]

I'm so glad you're doing well!

Could I perhaps ask for Damon and his darling nerd? Maybe something really good happens to her that she's excited about and when she tells Damon about it, she hugs him without thinking because of how happy she is. I'd imagine him getting drunk off of the physical contact and just wanting more

Yandere! Jock x Honor student! fem! reader everyday tidbits: achievements

Damon was nervous.

He's rarely nervous.

And, the fact that he's nervous for another person is weirder.

But, at least he's nervous for you. That made it more excusable as he watched you from afar on the bleachers, biting his nail while praying to whoever God that still didn't give up on him.

Sweat riddling down his temple, he watched as you raised your whiteboard with the words "300 to 3,000 Mega Hertz". Your eyes focused on the screen projector up above the University stage, with the question reading "What range of frequencies are usually referred to as the Ultra High Frequency (UHF) Band?"

It was your University's Intramurals week, with today being the Academic night. You were assigned to be the representative of your college's individual science quiz bowl, and that meant that Damon didn't get to have that much tutoring off of you.

Other than being pissed that you just had to join the quiz bowl, he felt somehow proud. You, the academic genius, the introverted yet blunt student of the Education department, is in a competition in front of such a huge crowd like this? It was unbelievable.

And yet, his unfounded jealousy trickled down his spine when the people cheered for you once the proctor beside you raised the green flag, signaling you got the right answer.

He may be cheering for you, but others are too. Just thinking about how other people can see your brilliance other than him was boiling his blood under his skin.

"One more round..." He whispered, gripping his fist. "Just one more, and she's for my eyes, and my eyes only once again."

His muttering scared his friend beside him, not used to seeing Damon so... ??? What is Damon's face projecting? He doesn't know. It was foreign to him.

Damon's heart jumped once he realized it was the last round. This is it.

The projector flashed once more, with the last item of the hard round. If you got this, then you'll be the champion of the individual science quiz bowl. If not...

"Which prefix is often used with scientific terms to indicate that something is the same, equal or constant?"

Hmm? Why did language studies came here?

Anxiety riddled his body for you.

What is it?

Whispers got out on the surrounding stadium and from the bleachers, wondering what the answers are. Some students are trying to mouth the answers to their representatives, but to no avail.

He found himself clasping his hands together, eyes wide as he leaned forward and bit his tongue.

"Come on, y/n... You know this... Wait? Do you? Whatever...." He whispered under his breath, watching you turn the gears click and clack on your pretty head.

Then, your hand started to move on the whiteboard you're holding.

As the timer ran out, you put your marker down with a shaky breath and an unsure frown, making your college groan in defeat.

Damon almost lunged at them. How dare they? How can they not believe in you, sighing in defeat-- do they not know it affects your morals too?

As murder plays on his mind, the projector flashed, showing the answer.

"iso"

His breath hitched, watching you put up your whiteboard marker.

iso

"OH MY GOD!"

"YES!"

"LET'S GOOOO!!"

"LET'S GO EDUCATORS LET'S GO!"

As the College cheer and the defeaning beat of the drums wafted from the bleachers, your eyes widened in delight, covering your mouth from disbelief. You actually got that right?!

Damon was suddenly buzzing with energy. His eyes wide, mouth a small "o". He stood up, and as if time stood in a slowmo, he vaulted over seats, and down from the bleachers. Ignoring the shot of pain on his feet, he ran through the barriers and ran past shocked people.

But before he could scoop you up in a hug, your eyes found his and with a huge grin, you ran to him and embraced him first.

Your soft body on his hard one, your arms giddily wrapped around his neck, your head buried on his shoulder.

He froze, not knowing what to do.

"I-I did it! Damon I did it!" You giddily whispered. Your voice, usually laced with shyness and a bit of ridicule, was full of elation and happiness. You felt so light, free from the pressure that you were placing on yourself. Tears of happiness trickled down your cheeks.

Damon trembled. His senses were overwhelmed with yours. Your scent, your body, your warmth... It was too much.

His arms shakily wound around you, gripping you tightly as his nose buried on your neck, inhaling your scent and calming down.

He can't be too worked up. After all, he's in front of countless people.

He reluctantly let go of you, wiping your tears away from your cheeks.

"I'm so proud of you, y/n." He whispered, eyes filled with so much affection that even your blindness to his advances got shunned away for a bit, making your heart race.

"Thank you, Damon..."

Meanwhile, everyone at your college were shocked, and other students let out high pitched coo's and aw's, thinking that you and Damon are together.

"What the fuck? Damon?" His friend was bewildered. Sure, he knew that Damon had the hots for you. But this?

It was too cheesy for him. Blegh.

Sure, maybe Damon took advantage of the crowd, vaulting over people to hug you and make it seem that both of you are dating. Will he deny it? Nah. Maybe even vaguely insinuating and egging these people to believe more.

At the very least, with him being your "boyfriend" nobody will try to snatch you away from him now that people saw your brilliance.

And as he buried his face on hair once more and spun you around happily, he knew the next few days and weeks will be one hell of a ride.

[writing-with-yours-truly]

Wattpad Transfer. "Final Fight" Pete Mitchell [Top Gun: Maverick] x Reader

Warnings: Swearing

Additional information: No use of Y/N. Fallout is your callsign. This is if you were in Rooster's place during the final fight scene of Top Gun Maverick

Requested by: N/A

"Maverick you can't be serious. This is a taxiway, which has debris on it." You pointed out the smoke-covered taxiway, looking around. You were in a plane you thought you'd never be in again. You realized the wings were going out. "Mav? Did you make the wings go out?" You asked, pressing your face against the window.

He ignored your questions, and accelerated forward. "Shit, shit!" You exclaimed, as you both lifted off the ground, losing the front landing gear. "We're off the ground, Fallout. We should be fine. We just need to get home."

"You know how risky it is to try and land without a gear?"

"We'll get to that later."

A few minutes pass, and he asks, "Try and get the radio on. Get in touch with home base." You looked around. "Mav, I'm not a backseater or anything of the sort. What makes you think I can find it out of all these switches?" You asked. "There isn't even a radio back here. No radar, that I can see."

"Alright. The radio. Throw the, uh. The uhf-2 circuit breaker. Try that." You looked around at all the switches. "There's like 300 back here."

"Don't know. That was your brother's department." You nodded. "Yeah. I'll see what I can do." You glanced outside, wanting to tell Maverick something. Until..."Mav, two planes coming in, 5:00 low. " They were coming in from behind you both.

"What do you think they want?" "Put your mask on," he replied. "Just relax. If they knew who we were, we'd be dead already."

They leveled out to your altitude. "Here they come," you muttered, attaching your mask. "Wave and smile."

So that's what you both did. The pilot started doing hand signals. "What does that mean, Mav?"

Maverick was doing hand signs back. "No idea. None of them look familiar."

Soon, the enemy moved to the side, and the other plane behind us. "Shit, he's moving into weapons envelope. Alright, when I tell you, grab those rings above your head. Those are the ejection handles."

"No, I'm not leaving." You said, looking at the handles. "Can't we just outrun the guys? I mean, out fly?"

"Not their missiles and guns."

"Then give them hell."

"An F-14 against fifth-gen fighters?"

"Remember what Rooster told you. It's not the plane. It's the pilot." Maverick stayed silent. "If I wasn't here, you'd go right after them."

You can hear the nervousness in his voice. "But you are here." He replied softly. "Don't worry about me. Don't think, just do." He takes a few breaths, thinking for a moment.

Before he quickly turned the plane clockwise. "Holy shit!" He maneuvered himself behind one of the two planes and shot it down. The other one followed behind us.

"Tell me when you see smoke in the air!" You turn yourself around and look at the plane behind you guys. You watched as the plane dropped a missile. "Smoke in the air! Coming in hot!" You exclaimed. "Hold on!" He said back. He turned the plane and moved behind the falling plane, the missle exploding into it.

"Splash one!" You call out. The other plane flew through the smoke. "We aren't out of the woods yet." The other aircraft turned onto its wing and shot another missle. "Another one coming in!" Maverick pulls the plane up, calling, "Fallout, hit the flares! Now, now, now!" You quickly hit the flare button, and the flares pop out behind the plane, the missile exploding within the flares.

"Splitting the throttles," Mav announced, the plane falling slightly as a gear sound is made. "Coming around." You guys managed to get behind the plane. "Give me tone, give me tone." The target lock beeped, and Maverick shot a missile at the plane.

The plane had done a sick maneuver to dodge the missile. "What the fuck?" You exclaimed as you guys flew past. "Hold on, we gotta get low. The terrain will confuse his targeting system."

You noticed Maverick lowered altitude. "He's coming around!"  You said looking behind the two of you. The fighter pilot started firing rounds at you both. "He's shooting, Maverick!"

"Where is he?!" He asked. You turn and look behind you both. "Still on us." The sound of bullets rang in your ear. "We took damage!"

"Damn it!" You put a hand on the window. "Do some of your crazy shit, come on!" "Brace yourself!" He pulled the plane up. "Holy shit!" You dove back down as you lifted up off your seat. Maverick got behind the pilot.

"Got tone, taking the shot." The plane released a missile, but the enemy released flares. "Damn it!" Maverick mutters. "Out of missiles, switching to guns."

The enemy aircraft took a few hits as your bullets went down. "Come on, come on!"

He stopped when the bullets hit 33. "One last chance, you can do this Maverick. I believe in you."

The last shots caused the pilot to eject, and the plane to wreck into the mountain side. "Splash two!"

The rest of the flight was calm, you had found how to turn the radio on. "Maverick, got the radio on!"

"Awesome. Get us in touch with the boat!" "Copy that." An alarm started going off. "Oh, my god."

"Where is he?" You looked around. "On our nose." Maverick pulled the trigger to fire. "Damn it, we're out of ammo." Your heart started pumping in your chest. Were you really gonna die this way? "Smoke in the air. Fallout, fire the flares!" Maverick pulled up, and around in a loop, and you distributed flares. "That was close!"

"No more flares!" You exclaimed. The plane circled back, and got behind us. "Shit, he's behind us!" You warned. He started firing at us. "This isn't good!" Maverick looked behind his shoulder, meeting your scared eyes, before turning the plane, dodging as many bullets as possible.

The sound of clanking filled your ears. "Another hit!" "No, no, no, no, no!"

A bunch of warnings popped up. "We can't hold on for long!" You exclaimed. "We have to eject, we can't outrun this guy!"

"Wait what?!" Maverick shifted. "We need altitude!" He looked over his shoulder. "Pull the handles as soon as I tell you to!"

"Maverick wait--!" Maverick cut you off, yelling your name. "There's no other way!"

The two immediately started pulling up, gaining height. "Eject!" He yelled to you. "But--" "Eject, damn it!" You pulled the ropes. "I can't!"

Maverick looked behind his shoulder. "Fallout, pull the handles, eject!"

"Its not working!" You strained as you continued pulling them, the sun glaring off your eye protectors. As you started gaining more altitude, you started losing vision, trying to breathe as much as possible. "I'm sorry. I'm sorry, Goose." Maverick muttered. The sound of an explosion caused you to try and turn your head. "Hangman." You muttered.

"Good afternoon, ladies and gentlemen, this is your savior speaking. Please fasten your seatbelts, return your tray tables to their locked and upright positions, and prepare for landing." You chuckled as Maverick hit the window, and gave him a thumbs up.

"Hey, Hangman, good job." You said.

"I'm always good." He replied. "See you on deck."

...

You guys landed, but not without problems. You lost your front landing gear, but eventually, made it for landing.

As the two of you stepped out, everyone cheered, and you waved. Maverick called you over. "Thank you for saving my life!" He said.

"It's what my brother would have done!" You answered. He grabbed you by the shoulders and kissed you. After the two of you pulled away, he hugged you.

[prezotech]

Seuic UHF READER | For more details Contact us :- 9990768818 | https://prezotech.in/

[wordacrosstime]

Practical RF Design Manual

[Practical RF Design Manual by Doug DeMaw (Milton F "Doug" DeMaw). 1997. MFJ Publishing. 2nd Edition 1997 : 246 pages. ISBN 1-891237-00-4]

For many years I was an amateur radio - "ham radio" - operator, beginning when I was 13 years old and going up until I was about 40 years old.  For those who are interested, my call sign was WA6FEB and I held an Extra Class ham radio license (this is the highest classification).  My fascination with radio was fostered by my step-father, the late Sam Martin (WB6WZN, later N7TBV), who had learned his electronics and radio theory while serving in the US Navy.

Sam had many years’ worth of a magazine called QST, which was one of the premier journals available for ham radio enthusiasts.  Doug DeMaw, the author of the book under review here, was a prolific contributor to QST and to other ham radio publications.  I was (and remain) a huge fan of his writings, especially his transmitter and receiver projects for ham radio folks.

What I did not know then, but have come to learn, is that DeMaw was truly a world-class electrical and electronic engineer.  He was known to much of the world as a ham radio person first and foremost, but he was a professional engineer who had an extraordinarily broad grasp of all aspects of radio transmission and reception, covering all power levels from the very tiny (what we in the ham radio community called QRP, or low-power, operation, usually less than 1 watt) to the industrial (the 50,000-watt and 100,000-watt “clear channel” broadcasts from commercial radio stations, for example).  DeMaw was well-versed in design considerations spanning operating frequencies from the US AM broadcast band (560 KHz to 1600 KHz) all the way up to the UHF range (where television broadcast channel 14 begins in the US, or around 470 MHz and beyond).  His knowledge went beyond component-level design of devices to include the design and tuning of antennas and other auxiliary devices to aid in the radio experience.

All of this knowledge is subsumed under the aegis of RF - radio frequency.  RF in modern terms is usually linked to RF ID chips, which are becoming quite common in scenarios that require tracking (such as shipment packages), but this is a very restricted window into the RF world.  To really see just how vast an enterprise RF electronics is, one might consult this book.

This volume is truly a gem.  I dearly wish I had access to it back in the early 1970s when I was first getting into radio.  It would have illuminated a lot of practical design issues for me, especially on the design of receivers.  Receivers are generally more complicated and finicky than transmitters – it’s easier to generate radio energy and cast it out into the universe than it is to gather it in and make sense of it.  This book leads the reader through 7 broad-based topics and roughly 40 overall subsections within those topics, starting with transmitter and receiver fundamentals and leading the reader through considerations related to power regulation, signal quality, the use of different types of components for different frequencies of operation and different power levels, and so on.

Unlike much of DeMaw’s writing with which I had been previously acquainted, this book is definitely not a book for someone looking to do a home project.  There are no comprehensive instructions on assembling or testing transmitters, receivers, or other associated machinery.  This book is written for a true engineer who wants to become familiar with many (most) of the gotchas that accompany real in-the-trenches electronic engineering work.  And in this vein, this book is as useful to a professional radio engineer (such as someone who is the engineer-in-charge at a radio or television station, for instance) as it is to a radio hobbyist.  It is also not the sort of book from which to learn first principles of electronics; for this, there are many more suitable books that introduce electronics at the most elementary level (Ohm’s Law, Kirchhoff’s Law, how vacuum tubes and transistors work, what makes oscillators work, and so on).  This book assumes that the reader already has some engineering skin in the game, as the saying goes.

Whom would I recommend this book to?  Anyone who wishes to know something about electronics that precedes the modern all-digital era where whole systems are embedded on integrated circuit (IC) chips.  While those circuits may make for easier and more controlled design, they take away a lot of the learning, guesswork, and outright fun of figuring these things out for yourself.  DeMaw’s work hearkens back to what many of us current and former ham radio people think of as a sort of golden era of communications – a time before cell phones and before email.

A couple of comments about the text itself:

There are some typos both in the text and on the many diagrams.  For the most part these are easy to spot if you are already versed in basic electronics, but they would be profoundly confusing to someone who doesn’t know what they’re looking at.  Anyone who doesn’t know how to read a basic schematic diagram of a circuit will not find this volume very helpful.

Bearing in mind that some of the material in this book dates to the 1970s and 1980s, it is possible that some of the actual components cited in the text no longer exist or are not easily available.  Happily, the author describes them in sufficient detail that a modern engineer or hobbyist can find current components whose characteristics match what DeMaw had at his disposal when the book was written.  DeMaw was fairly fastidious about describing the important pieces of each circuit or circuit fragment in the book.  One needs but to pay attention to the text to make the connection.

I was delighted to read through this volume.  I am not currently an active hobbyist, but as I near retirement age, I am giving a return to ham radio serious thought.  With that in mind, this book will be an invaluable title in my collection when I once again wield a soldering iron and set out to make some more home-brew radio equipment as I did so many years ago.

[Photo credits with thanks to : Book Cover of 2nd edition 1 August 1997 © 1997 M F J Enterprises Inc / Portrait © Copyright Holder (apologies not known)]

Kevin Gillette

Words Across Time

10 January 2023

wordsacrosstime

[lokisprettygirl]

UHF reader is going to talk so much in chapter 2 you guys. I'm so sorry 😂

[fionayao2008]

Tripod Turnstile Overview Tripod Turnstile, Swing Turnstile, and also Flap Turnstile( RS Security Co., Ltd: www.szrssecurity.com) are modern control devices for pedestrian passages. They are used in position where the entrance and departure of individuals need to be managed, such as clever neighborhoods, canteens, hotels, galleries, gyms, clubs, subways, terminals, docks, and so on area. Using Tripod Turnstile, Swing Turnstile, and Flap Turnstile can make the flow of individuals organized. Tripod Turnstile, Swing Turnstile, Flap Turnstile are used in mix with smart cards, fingerprints, barcodes as well as other recognition system tools to form an intelligent access control network control system; they are used in mix with computers, accessibility control, presence, billing monitoring, ticket systems and other software application to create a The intelligent Turnstile Gate extensive management system can understand functions such as accessibility control, attendance, usage, ticketing, and current limiting. This Turnstile Gate management system belongs to the "all-in-one card" and also is mounted at flows such as areas, factories, smart buildings, canteens, etc. It can finish numerous monitoring functions such as worker card traveling control, presence at get off job and also meals, and eating. Tripod Turnstile system features Fast and practical: check out the card in and out with one swipe. Utilize the licensed IC card and also wave it before the clever Tripod Turnstile viewers to finish the Tripod Turnstile gate opening and also cost recording work. The card analysis is non-directional and also the reading and also composing time is 0.1 secs, which is practical and also rapid. Safety and security and also discretion: Use background or local verification, authorized issuance, and special identification, that is, the card can just be made use of in this system, and it is private as well as secure. Dependability: Card superhigh frequency induction, dependable and also stable, with the ability to judge and think. Flexibility: The system can flexibly establish entrance and also leave control employees consents, period control, cardholder credibility as well as blacklist loss coverage, including cards and also other features. Flexibility: Through authorization, the customer card can be utilized for "one-card" administration such as car park, presence, accessibility control, patrol, intake, and so on, making it very easy to recognize several uses one card. Simpleness: Easy to install, straightforward to attach, the software has a Chinese interface and also is easy to operate. Tripod Turnstile, Swing Turnstile, and also Flap Turnstile( RS Security Co., Ltd: www.szrssecurity.com) are modern control devices for pedestrian flows. The use of Tripod Turnstile, Swing Turnstile, as well as Flap Turnstile can make the flow of people organized. Utilize the authorized IC card as well as wave it in front of the wise Tripod Turnstile reader to complete the Tripod Turnstile gate opening and cost recording work.

[harshmishra8726]

Why RFID Jewelry Tags Are Essential for Jewelry Showroom Management

Jewelry showrooms, known for displaying high-value and exquisite pieces, face unique challenges regarding inventory management, security, and efficient customer service. Managing hundreds or even thousands of high-end items manually can be overwhelming, time-consuming, and prone to human error. Enter RFID (Radio Frequency Identification) technology, transforming jewelry showrooms' operation. RFID jewelry tags are revolutionizing showroom management by providing seamless tracking, improving security, and offering real-time inventory updates.

The Role of RFID Tags in Jewelry Showrooms

RFID tags, when applied to jewelry pieces, contain a tiny chip and antenna that transmit data wirelessly to a reader. This technology has seen widespread adoption across various industries, and in jewelry showrooms, RFID systems offer tremendous benefits. These RFID jewelry tags can be attached to individual pieces like rings, necklaces, and watches, allowing the system to track their precise location within the store.           

One of the most compelling features of RFID technology is that it can automatically scan multiple tags simultaneously, even through barriers like glass. This means that entire sections of jewelry can be tracked and counted instantly, providing real-time updates on the showroom’s inventory.

Key benefits of RFID Tags for jewelry stores:

1. Real-Time Inventory Management

One of the primary reasons RFID jewelry tags have become essential is their ability to provide real-time inventory updates. In traditional inventory systems, counting high-value items like jewelry is a manual and labor-intensive process. Employees must often scan each piece individually, which increases the risk of errors, missed items, or inconsistencies.

With RFID tags, the system can automatically track each piece’s exact location and status. Whether a piece has been moved from a display case, returned to storage, or sold to a customer, the system updates in real time. Say goodbye to manual counting and rest easy knowing that your inventory is always accurate. As a result, jewelry showrooms can significantly reduce time spent on inventory management, freeing up staff to focus on providing personalized customer service.

2. Enhanced Security and Theft Prevention

Jewelry showrooms are often targeted for theft because of the high value of the items on display. Keeping a close eye on every piece at all times is nearly impossible, but RFID jewelry tags offer a robust security solution. RFID systems allow showroom managers to monitor the movement of jewelry in real time, setting off alerts if any piece is moved without authorization or taken outside the designated zone.

The technology can also track who accessed the item and when helping create a traceable record of each piece’s movement within the showroom. This makes it easier to identify and prevent theft or unauthorized handling. RFID tags also offer an additional layer of protection when coupled with anti-theft alarms and security cameras, making it far more difficult for criminals to steal high-value items unnoticed.

3. Improved Customer Experience

In addition to improving security and inventory control, RFID technology can significantly enhance the overall customer experience. When a customer visits a jewelry showroom, they expect personalized service, and with RFID jewelry tags, staff can deliver just that. Showroom employees can quickly locate any piece of jewelry in the store by scanning the RFID system. This rapid retrieval saves time, especially during busy periods, allowing employees to provide better and faster service to customers.

Furthermore, RFID technology can be integrated into customer-facing systems, offering personalized recommendations or detailed product information with just a tap. For example, when a customer shows interest in a particular piece, the RFID tag can instantly pull up detailed information about the jewelry, such as its design, materials, pricing, and available sizes. This speeds up the sales process and enhances the overall shopping experience by offering quick, relevant information tailored to the customer’s needs.

4. Seamless Inventory Audits

Regular inventory audits are necessary to ensure the showroom’s stock matches sales records. However, manually auditing jewelry can be both time-consuming and prone to errors, especially when dealing with high-value collections. RFID jewelry tags simplify this process significantly.

Instead of manually counting each piece and matching it against records, RFID readers can scan an entire collection in a matter of minutes. This not only improves accuracy but also reduces the time required for audits from hours or even days to just a fraction of that time. Jewelry showrooms can conduct more frequent audits without interrupting daily operations, ensuring that inventory data is always up-to-date and accurate.

5. Efficient Product Tracking

Tracking individual pieces of jewelry is one of the biggest challenges in showroom management. Pieces may be moved frequently between display cases, stock rooms, and customers, making it hard to keep track of their exact location at any given time. RFID tags allow showroom managers to know precisely where each item is, whether it's in a display case, out for cleaning, or being shown to a potential buyer.

This efficient tracking system reduces the chances of items being misplaced, saving time and reducing the risk of losses. It also provides valuable insights into which pieces are more frequently handled or requested, helping managers optimize their display strategies to showcase the most popular items.

6. Scalability for Growing Businesses

As a jewelry business grows, managing larger inventories can become increasingly challenging. RFID jewelry tags offer a scalable solution that grows with the business. Whether a showroom has a few hundred or several thousand pieces, the RFID system can handle the increased volume without losing efficiency. This makes it an excellent long-term investment for businesses looking to expand their product offerings or open multiple locations.

Conclusion The adoption of RFID jewelry tags is transforming jewelry showroom management, providing benefits that go beyond simple tracking. From real-time inventory management and improved security to enhanced customer experiences and efficient audits, RFID technology is becoming an essential tool for modern jewelry businesses. As the jewelry industry continues to evolve, RFID tags offer a reliable, scalable, and secure solution for managing high-value items with ease. Embracing this technology not only boosts operational efficiency but also helps create a seamless, personalized experience for customers, ensuring success in today’s competitive retail landscape.

[rfid4uposts]

Zebra MC3330xR Integrated RFID Handheld Reader

Explore the powerful Zebra MC3330xR Integrated RFID Handheld Reader, designed for seamless asset tracking and inventory management. Featuring advanced UHF RFID technology and an ergonomic design, this robust handheld reader ensures accurate data capture in diverse industrial environments. Ideal for retail, logistics, and manufacturing, the MC3330xR enhances operational efficiency and reduces manual errors.