STJグループ（株式会社サンテレコムジャパン、株式会社STJレンテック） List of Products and Services

We would like to introduce a case study of the implementation of the portable digital simple radio "SR810UA" for our customers in the security industry. The security base shares its facilities with other companies, and there are numerous radios operating within the area, indicating room for improvement in the management system of the radios. Additionally, while multiple teams required radios, there was a desire to reduce the number of units as much as possible. After implementation, we were able to consolidate communications into one unit, allowing us to equip each team with radios while reducing the total number of units. Furthermore, the management of radios within the security base became simpler than before implementation, leading to operational improvements. 【Case Summary】 ■Challenges - Each team was using two radios for internal communication and two for overall communication. - There was a need to reduce costs associated with radios. ■Implementation Results - Operations became possible with just one radio. - Cost reductions were achieved through a decrease in the number of radios. *For more details, please download the PDF or feel free to contact us.

• Radios, walkie-talkies, and intercoms

Are you troubled by dead zones in wireless communication or insufficient communication range? A "wireless repeater" is an important tool for improving the communication range of transceivers and radios. Clear communication can be achieved even in areas where radio waves are difficult to reach, large sites, or facilities with different levels, through the use of a repeater. In this article, we will thoroughly explain the basic mechanism of wireless repeaters, the benefits and precautions of their introduction, and how to choose one. We will also introduce our top three recommended wireless repeaters for licensed stations, so please be sure to read to the end. *For detailed content of the column, you can view it through the related links. For more information, please download the PDF or feel free to contact us.

• Radios, walkie-talkies, and intercoms

The SRD580 is a digital simple business radio that reliably supports business communications with advanced technology from YAESU Connect Light and shuts out interference with its interference avoidance feature. When it receives interference from non-members, it instantly switches to a backup channel to avoid interference, ensuring that communication among members is not affected. Additionally, it features high durability, 1400mW high sound quality and volume, high-performance noise cancellation, and long battery life, making it suitable for professional use. With 2W of high power, it achieves a wide coverage area, allowing for communication even in places where specific low-power radios have difficulty reaching. 【Features】 ■ Two convenient functions made possible by YAESU Connect Light ■ A rich variety of four color options ■ Simple key model ■ One-click hands-free function ■ Area research function *For more details, please download the PDF or feel free to contact us.

• Radios, walkie-talkies, and intercoms

We would like to introduce the "Corporate Smartphone iPhone 17" that we handle. Thanks to its eSIM-only design, you can set up and switch communication plans without changing SIM cards. Managing multiple plans and using it overseas is now smoother than ever. Additionally, the AI processing capabilities have been enhanced, supporting advanced features such as text summarization and image recognition. 【Features】 ■ Smooth operation with up to 120Hz ProMotion technology ■ Supports a maximum brightness of 3,000 nits, ensuring visibility even outdoors ■ Equipped with a 6.3-inch Super Retina XDR display ■ Features a Ceramic Shield on the front for improved resistance to scratches and impacts ■ IP68 rated for water and dust resistance, suitable for various everyday scenarios *For more details, please download the PDF or feel free to contact us.

• Mobile phones and smartphones

Have you ever used a pocket Wi-Fi that utilizes the currently popular cloud Wi-Fi? At Santelecom Japan, we offer "STJ Rental Wi-Fi" for corporate customers. Although I usually guide customers, I wanted to verify whether "cloud Wi-Fi really connects comfortably" and "whether the switching is smooth even while moving," so I decided to use STJ Rental Wi-Fi myself for a few days. In this report, I will honestly share my experience, including both the good aspects and the points that raised some concerns. *For detailed content of the column, you can view it through the related links. For more information, please feel free to download the PDF or contact us.

• Mobile phones and smartphones

While digital transformation (DX) is progressing in factories and construction sites, the use of smartphones and tablets is strictly limited in "explosion-proof areas" such as oil and gas plants and chemical factories. This is due to the risk that sparks and heat can lead to serious accidents. Traditionally, expensive explosion-proof smartphones were the norm, but in recent years, a new option has emerged: "attaching explosion-proof cases to existing iPhones." This column will provide a detailed explanation of the basics of explosion-proof technology, an overview of the standards, and the benefits of implementation. *For more details on the column, you can view it through the related links. For further information, please download the PDF or feel free to contact us.*

• Mobile phones and smartphones

We offer the "iPad for Businesses (A16)." With the high-performance A16 chip and a long-lasting battery, you can work quickly and confidently. Switching between multiple apps and collaborating online is smooth. We support your daily work and learning more comfortably. A dedicated representative will carefully assist you with inquiries related to corporate pricing, purchasing methods, initial costs, pricing plans, MDM settings, and more regarding implementation. Please feel free to contact us. 【Features】 ■ Draw with a stylus, write with a keyboard ■ Your favorite place becomes your creative studio ■ Bring your imagination to life with this one device *For more details, please download the PDF or feel free to contact us.

• Tablet PC

Have you ever felt that when using a radio (transceiver or intercom), sometimes "another voice mixes in" or "you can't hear the other person's voice"? The cause may be "interference." In this article, we will introduce the main causes of interference, specific countermeasures, and recommend digital simple radios for interference prevention. Please refer to this when using radios. *For detailed content of the column, you can view it through the related links. For more information, please download the PDF or feel free to contact us.

• Radios, walkie-talkies, and intercoms

We would like to introduce a case where the rental service for the IP radio "SRNX1" was implemented in event and exhibition management. This customer originally used digital simple radios, but interference with other radios was likely to occur at the event venue. After implementation, the restrictions on transmission during event management and progress were lifted, leading to smoother information sharing. 【Case Overview】 ■Challenges - Radios are prone to interference at the event venue - There are areas within the venue where communication is not possible with digital radios ■Results - Improved communication situation, with zero interference - Communication possible anywhere within LTE coverage area *For more details, please download the PDF or feel free to contact us.

• Radios, walkie-talkies, and intercoms

The "SRD790/SRD795(-BT)" is a professional-grade wireless device featuring high durability, 1400mW high sound quality and volume, high-performance noise cancellation, and long battery life. The newly implemented feature "YAESU Connect" offers powerful interference avoidance and convenient functions utilizing dual-band simultaneous reception. Individual calls can be made in up to 7 groups, and in emergencies, barriers between groups can be removed for information sharing (Merge function). 【Features】 ■ Simple key model SRD790 ■ One-click hands-free function ■ CUE: Cue function ■ Unique noise canceling ■ Area research function ■ Air clone function *For more details, please download the PDF or feel free to contact us.

• Radios, walkie-talkies, and intercoms

eYACHO for Business is a system that was initially developed with the aim of digitizing "field notebooks" used on construction and civil engineering sites. It has now evolved beyond the "field notebook" concept to become an integrated solution that includes not only business management (daily reports, instructions, drawings, etc.) but also communication functions. The main features are as follows: ■ Key Features (Excerpt) - Direct digitization of currently used paper forms - Recording of images, videos, or audio in each form or free notes - Real-time sharing of notebook content regardless of location - Various business templates - Linking captured images by pinning them to drawings Additionally, the latest version, eYACHO 7, was released in September 2025, adding the following features: ■ New Features (1) Construction photo management function (photo sorting function when creating photo ledgers) (2) Measurement device integration (BLuE integration) (3) AI help (4) Digital signage integration With 'eYACHO 7,' which reflects the voices from the field, we support the enhancement of productivity and safety in construction management. *For more details, please download the PDF or feel free to contact us.

• Construction and process management software

Recently, large-scale typhoons and heavy rains have been occurring continuously every year, causing significant damage. In this article, we will introduce a hybrid IP transceiver (IP700PLUS) that utilizes mobile lines for wide-area communication and a unique communication network as a digital simple radio as a BCP measure. In Japan, natural disasters caused not only by earthquakes but also by typhoons and strong winds occur every year. Recently, power outages and damage to communication infrastructure have been frequent due to intensifying typhoons. *For more details on the column, please refer to the PDF. Feel free to contact us for more information.

• Radios, walkie-talkies, and intercoms

MCA wireless has been an essential communication infrastructure that enables stable calls nationwide in Japan, playing a crucial role as a business communication system for disaster prevention and infrastructure development as part of BCP measures. However, it is currently heading towards service termination, making it urgent for companies and local governments to consider alternative options. This article will provide a detailed explanation of the features and mechanisms of MCA wireless, its advantages and points to note, as well as measures to take in response to the impending service termination. *For more detailed content of the column, please refer to the PDF. For further inquiries, feel free to contact us.*

• Radios, walkie-talkies, and intercoms

In today's business environment, smartphones have become an indispensable presence, and device malfunctions or damage pose a significant risk that can directly lead to operational halts. The prices of smartphones have been rising year by year, and it is not uncommon for models to exceed 100,000 yen. This article provides a detailed explanation of the necessity and benefits of smartphone insurance for corporations. We also introduce recommended insurance services and operational methods, so please be sure to read until the end. *For detailed content of the column, you can view it in PDF format. For more information, please feel free to contact us.*

• Mobile phones and smartphones

We would like to introduce a case where "GEMBA Note for Business" was implemented for a company engaged in playground equipment inspection services, and the cloud capacity was increased by 100G. The company faced challenges such as never finishing work within the prescribed business hours, making overtime a norm, and having concerns about system investments. After the implementation, we received feedback that creating reports became easy, operational efficiency was immediately noticeable, and staff were able to use the system without any issues. [Challenges] ■ Streamlining playground management inspection tasks ■ Updating based on past playground records through digitization ■ Establishing a division of labor system between headquarters and playground inspectors ■ Reducing system investment ■ Overtime being the norm *For more details, please download the PDF or feel free to contact us.

• Electronic document system

We would like to introduce a case where IP radios and digital simple radios were implemented at the Kineko International Film Festival, hosted by the general incorporated association Kineko Film. There were concerns that "communication with digital radios becomes unstable," and they were considering renting IP radios that could cover a wider range. However, they consulted us about the high costs of IP radios, making it difficult to equip all units with them. As a solution, digital radios were used for staff communication inside the venue, while IP radios were implemented for outdoor security and VIP guidance. By changing the type of radio according to the role, we were able to increase the necessary number of units while keeping costs down. 【Case Overview】 ■Challenges - Communication is unstable even over short distances due to building interference. - Radios must be rented within a limited budget. ■Proposal - Expand communication range with IP radios. - Support the film festival with sponsorship discounts. *For more details, please download the PDF or feel free to contact us.

• Radios, walkie-talkies, and intercoms

The "UBZ-LU20/UBZ-LU27(BT)" is a specific low-power transceiver that achieves cable-free operation through Bluetooth compatibility. It is a new model in the "UBZ series," which can be widely used from business to leisure, featuring dust and water resistance rated IP54, and does not require a license. Additionally, it implements an "Eco Mode ECo(H)" battery save function, allowing for continuous operation for up to 100 hours using alkaline AA batteries. 【Features and Functions】 ■ A variety of functions that accelerate communication ■ Resolves call issues with "Group Number Mismatch Notification" ■ "Channel Number Display Switching" tailored to usage ■ "Call Notification Tone" to prevent audio dropouts ■ Equipped with a rotating antenna *For more details, please download the PDF or feel free to contact us.

• Radios, walkie-talkies, and intercoms

We would like to introduce a case study of the implementation of our BPO service "MaruMoba" at Yoshizumi Holdings, where business smartphones are utilized across many departments, from sales and consulting to engineering. Before the implementation, when devices were needed internally, initial setup and accessory preparation were carried out, and the devices were lent to users. When devices were returned by departing employees, their condition was checked, and they were initialized and maintained before being stored. Now, returned devices are sent directly to our company, and we have transitioned to a system that handles everything from condition checks to management and redistribution in one go. Inventory status is also visualized in real-time, the area around the cabinets is organized, and the overall outlook for management operations has greatly improved. [Challenges] - Checking the condition of returned devices, performing initialization and maintenance, and handling storage - While remote work is the focus, staff members were still required to come to the office once a week, leading to ongoing demands on their time. *For more details, please download the PDF or feel free to contact us.*

• Mobile phones and smartphones

To companies where many employees are field workers, we would like to introduce a case study of the implementation of "eYACHO for Business." After fieldwork is completed or after the evening meeting, it has become essential to return to the office to carry out administrative tasks such as creating and organizing reports and daily logs. The burden of these administrative tasks has been a contributing factor to long working hours and decreased operational efficiency for field personnel. By utilizing the digital scale feature of our service, it has become possible to derive accurate scales from drawings and conduct verification tasks on an iPhone. [Challenges] ■ Reducing overtime is essential ■ Confirming communication instructions during corrections ■ Resistance to digitization *For more details, please download the PDF or feel free to contact us.

• Process Control System

"Business Chat Direct" is not just a two-way text and voice communication tool; it is a cloud solution service that can be used for creating documents, applications, inventory checks, and more, simply by responding to content generated by bots related to attendance management, business reports, overtime requests, and other purposes. As a "Work Style Transformation Solution," it facilitates smooth business communication, achieving operational efficiency that is often difficult to see and quantify in daily activities. Additionally, by using the development tool daab, unique customizations are possible. 【Features】 ■ Business chat for field workers ■ Meets the "on-site needs" of various industries ■ Free plan available for up to 10 users ■ Free calling feature available in the free plan *For more details, please download the PDF or feel free to contact us.

• others

"mazec for Business" is an app that allows you to write the characters you want directly on the screen, rather than tapping away on a small keyboard. It recognizes the characters written with your fingers or a stylus in real-time and converts them into text. With high recognition accuracy, it learns your writing style and the conversion options you select, evolving into a more personalized input method the more you use it. Additionally, handwritten input is possible in almost all applications, including email, browsers, and social media, allowing for comfortable text entry as a substitute for a keyboard. [Features] - Correctly mixes kanji and hiragana for conversion - Handwriting conversion available in various apps on iOS, Android, and Windows - Learns the quirks of your handwriting and allows for abbreviated characters through shape registration - "Short text registration" converts original shapes into strings *For more details, please refer to the related links or feel free to contact us.

• others

The "VR Firefighting Training Simulator," supervised by the "Tokyo Disaster Prevention Equipment Maintenance Association," which possesses specialized knowledge as a legal training institution for self-defense firefighting, allows for realistic fire and smoke simulations to conduct firefighting training. It enables flexible firefighting training without the constraints of time and location, reducing the burden on both the person in charge and the trainees. It can accommodate a wide range of participants, from small children who may find handling difficult to the elderly. 【Features】 ■ Uses real fire extinguishers ■ VR visuals and audio can be shared among everyone ■ Easy to transport and simple to set up ■ Backgrounds of VR visuals can be customized *For more details, please download the PDF or feel free to contact us.

• VR/AR
• Disaster prevention supplies

"MetaMoJi Share for Business" is a paperless app released with the aim of promoting a paperless environment. It digitizes materials that were previously shared on paper, such as documents for distribution, resumes to be shared, and images, allowing users to write notes by hand just like on paper, all on an iPad (including PCs). With an electronic pen, it is possible to directly fill out documents such as estimates, instructions, and business reports just like on paper. 【Features】 ■ Ability to digitize currently used paper forms ■ Real-time sharing functionality ■ Zoom in and out of materials ■ Easy import of materials created in MS Office ■ Recording function to keep a history of meetings *For more details, please download the PDF or feel free to contact us.

• others

"MetaMoJi ClassRoom" is a real-time classroom support app developed for educational support in schools. It enables active learning using tablets, allowing teachers to grasp each student's learning status in real-time, and students can also collaborate with each other in their learning. Students can freely write in their notebooks as if they were writing on paper, and teachers can monitor this content on the screen. Additionally, students can submit their notebooks, receive grading, and distribute assignments all within the app. 【Features】 ■ Supports a kanji allocation table, displaying only the kanji required for the course ■ Monitoring function to check students' understanding ■ Compatible with both offline and online modes ■ Various business templates are available ■ In learning mode, it is possible to switch between group, individual, and collaborative learning within a single notebook *For more details, please download the PDF or feel free to contact us.

• others

We would like to introduce the convenient features of "eYACHO for Business Appendix" that we handle. For matters requiring approval in business processes, it is possible to request approval from the approver. You can apply protection to notes created based on the approver's authority to prevent tampering. Additionally, with the spreadsheet function, if you create a template that allows for automatic calculations, you can complete reports such as "attendance sheets" simply by entering numbers on-site. It is also possible to create graphs from the entered values. 【Convenient Features (Partial)】 ■ Approval request excerpt management (Approval view) ■ Digital ruler for drawings ■ Spreadsheet function ■ Template creation support using image recognition AI technology ■ Full-text search *For more details, please download the PDF or feel free to contact us.

• Process Control System

"eYACHO for Business" is a system originally developed with the aim of digitizing "field notebooks" used in construction and civil engineering sites. Currently, it allows for the import of PDF files of safety reports, improvement instructions, construction plans, drawings, and other documents used on-site, enabling easy digitization by defining and embedding input fields on each PDF. Additionally, it allows for videos to be attached to notes, enabling rapid sharing of on-site conditions in a secure environment via MetaMoJi Cloud, and it also supports still image extraction. [Features] ■ Can digitize existing paper forms as they are ■ Record images, videos, or audio recordings in each form or free note ■ Share note content in real-time regardless of location ■ Various business templates are available ■ Link captured images by pinning them to drawings *For more details, please download the PDF or feel free to contact us.

• Process Control System

"GEMBA Note for Business" is a management support app that allows you to immediately experience cost-effectiveness as a solution for transforming work styles. It significantly enhances the work-life balance of field workers, contributes to efforts for "work style reform," and improves productivity and efficiency. With a smartphone or iPad, you can utilize your free time anywhere to input data and check necessary electronic documents. 【Features】 ■ Ability to digitize currently used record forms ■ Ability to write handwritten notes and comments on the data entered in forms ■ Easily create and flexibly respond to different forms for each site ■ Share the same forms with multiple members for meetings ■ Prevent work omissions with TODO settings *For more details, please download the PDF or feel free to contact us.

• Process Control System

Wireless communication is an essential tool for business and event management. Is there a risk of "eavesdropping," where communication content can be overheard by third parties? If so, do you have questions like "What types of radios are more susceptible to eavesdropping?" This article will provide a detailed explanation of the basics of wireless eavesdropping, radios that are more prone to being intercepted, and specific countermeasures. We will also recommend portable digital simple radios with low eavesdropping risk. *For detailed content of the column, please refer to the related links. For more information, you can download the PDF or feel free to contact us.*

• Radios, walkie-talkies, and intercoms

What is the radio wave usage fee? Does using a radio cost money? Do you have such questions? In this article, we will thoroughly explain the radio wave usage fees when using radios, covering everything from amateur radios to commercial radios, including fees by type and payment methods. We will comprehensively introduce information about radio wave usage fees, from the basics of the Radio Law to specific payment methods and advantageous prepayment systems. Please be sure to read to the end. *For detailed content of the column, you can view it through the related links. For more information, please download the PDF or feel free to contact us.

• Radios, walkie-talkies, and intercoms

There are various types of wireless communication, among which VHF and UHF are commonly heard. Both are frequency bands used in radios, but they have different characteristics and are used differently depending on the application. In this article, we will explain the differences between VHF and UHF in a way that is easy for beginners to understand, as well as key points for choosing radios based on frequency bands. If you are considering purchasing a radio, please use this as a reference. *For detailed content of the column, you can view it through the related links. For more information, please download the PDF or feel free to contact us.*

• Radios, walkie-talkies, and intercoms

We would like to introduce a case study of the introduction of the IP radio "IP500H" at the Kasumigaura Marathon and International Blind Marathon. Due to challenges such as "the radio waves do not reach with ordinary radios for large-scale events" and "not knowing the current location of the ambulance, which delays the transport of injured persons," we proposed our product that can cover wide-area communication and has GPS capabilities for location tracking. As a result of the introduction, the GPS installed in the IP radio facilitated smooth coordination over a wide area. 【Case Overview】 ■Industry: Sports event management ■Adopted Manufacturer: Icom Inc. (ICOM) ■Model Introduced: IP Radio IP500H (au line) ■Number of Units Introduced: 60 units *For more details, please download the PDF or feel free to contact us.

• Radios, walkie-talkies, and intercoms

The "IC-RP6300R" is a system that enables extended communication range by relaying communications from digital simple radio equipment (licensed stations). It allows for operations over a wide area that could not be covered by communications between digital simple radios, as well as the elimination of physical radio interference caused by underground structures and terrain. Additionally, it comes with a duplexer (antenna sharing device) that allows for system construction with just one antenna, making it easy to install the relay device. 【Features】 ■ Duplexer for system construction ■ Comfortable communication due to interference countermeasures *For more details, please download the PDF or feel free to contact us.

• Radios, walkie-talkies, and intercoms

In the era of digital transformation, as companies are required to improve productivity and streamline operations, the iPad is gaining attention as a solution. Not only is it portable, but its excellent operability and the abundance of business-oriented apps support operations in various settings. In this column, we will introduce the features of each iPad model, recommended accessories, and apps that are useful for business. There are also case studies of companies that have achieved digital transformation through the use of iPads, so please read until the end. *For more detailed content of the column, you can view it through the related links. For more information, please download the PDF or feel free to contact us.*

• Mobile phones and smartphones

On April 10, 2025, KDDI launched the "au Starlink Direct" communication service, which allows smartphones to connect directly to satellites, through collaboration with SpaceX. As a result, in areas where the sky is visible, it will be possible to exchange messages even in mountainous regions, remote islands, and disaster sites where communication has previously been difficult or temporarily unavailable. In this column, we will delve into the details of "au Starlink Direct," focusing on the basic mechanisms of satellite communication, how to use it on compatible devices, and the setup procedures, all explained in an easy-to-understand manner. *For more detailed information, please refer to the related links. For further inquiries, feel free to download the PDF or contact us.

• Mobile phones and smartphones

Last year, Apple announced the generative AI feature "Apple Intelligence," which became a major topic of discussion. The long-awaited Japanese version has finally arrived in April 2025! It's different from the previous Siri, packed with convenient features that make daily tasks much easier, such as assisting with the creation of text and images. In this article, we will clearly explain how to utilize Apple Intelligence in business settings, along with important points to consider. *For detailed content of the column, you can view it through the related link. For more information, please download the PDF or feel free to contact us.*

• Mobile phones and smartphones

With the spread of ChatGPT and Copilot, generative AI is transitioning from a "futuristic technology" to an "essential practical tool" for business. Last year, Apple's announcement of Apple Intelligence has made AI a more familiar presence, and its use on business smartphones like the iPhone is also expanding. This article will explain the information leakage risks that companies may overlook when utilizing generative AI, as well as measures to use it safely. We will also introduce specific examples of how our company has implemented ChatGPT, so please refer to them. *For more details on the column, you can view it through the related links. For more information, please download the PDF or feel free to contact us.*

• Mobile phones and smartphones

In recent years, violence and abusive language directed at employees by customers, as well as excessive complaints (customer harassment, commonly known as "casuhara"), have become serious issues, particularly among small and medium-sized enterprises. To prevent such problems, Tokyo will implement a new ordinance starting in April 2025 and will support companies' measures through a subsidy system. As part of this initiative, "body cameras" are being highlighted as particularly effective tools. This article will explain in detail how the introduction of body cameras can be effective in addressing casuhara. *For more details, you can view the related links. For further information, please feel free to download the PDF or contact us.*

• Security cameras and surveillance systems

Do you have these concerns about managing business terminals? "Frequent configuration errors" "Spending too much time on inquiries" "Too much effort required for terminal management" Suntelcom Japan's original BPO service "MaruMoba" solves all of these issues. In this article, we will detail how MaruMoba's features, implementation benefits, and actual success stories can help resolve terminal operation challenges. A must-read for those aiming to improve operational efficiency and promote DX. *For more details, you can view the related links. For more information, please download the PDF or feel free to contact us.*

• Mobile phones and smartphones

Our company offers the 'iPhone 16e' as a corporate mobile phone and corporate smartphone. Designed to make the most of Apple Intelligence, this personal AI strongly supports tasks such as writing and task efficiency. You can create your own emojis and freely edit photos with the "cleanup" feature. The body is made of high-strength aluminum material, achieving a tough structure that can withstand daily impacts and accidents. It provides solid protection against everyday little mishaps. 【Features】 ■ Optimized for Apple Intelligence ■ Tough and refined design ■ Industry-leading durability ■ Action button for various operations with one push ■ Versatile USB-C port *For more details, please download the PDF or feel free to contact us.

• Mobile phones and smartphones

The "EXR-7000CR" is a digital simple business radio and relay device that can significantly extend communication range by being installed at a midpoint within a facility. With user code settings and secret code settings, it enables highly confidential communication. It is effective in environments where communication is difficult between digital simple radios and where mobile phones cannot be used. Additionally, it has a built-in ample capacity AC power supply, so there is no need to purchase a separate power source. 【Features】 ■ Enables communication in large areas and high-rise buildings ■ Backup DC power supply equipped with built-in large-capacity AC power supply ■ High output design with built-in duplexer *For more details, please download the PDF or feel free to contact us.

• Radios, walkie-talkies, and intercoms

We would like to introduce a case study of the digital simple radio "SR741 Amplification Type" implemented for customers operating ski resorts. Before the implementation, each team set their own user codes and communicated individually, but they faced issues with overlapping channels and simultaneous transmissions, which hindered smooth communication. By switching to a model that amplifies up to 97 channels, interference was completely eliminated, and the antenna was also changed to a shorter one. This made it easier to carry and store, improving work efficiency and mobility. [Case Overview (Partial)] ■ Challenges - Interference with other teams' radios - Unwillingness to use radios with long antennas ■ Implementation Results - Communication became smoother - Operations became more comfortable due to the shorter antenna *For more details, please download the PDF or feel free to contact us.

• Radios, walkie-talkies, and intercoms

We would like to introduce a case study on the implementation of the IP transceiver "IP510H (Dual SIM)" in the construction industry. Before the implementation, there were often physical barriers to signal reception due to the radio environment and work conditions, necessitating movement to areas with communication capability or the need for a relay, which was inefficient. Additionally, we were searching for a new emergency communication service to replace MCA radio. Considering the need for an MCA alternative and communication in areas with poor signal conditions, we proposed this product. As a result of the implementation, communication became possible even in areas that were previously dead zones for regular IP radios and mobile phones. 【Challenges Faced by the Customer】 ■ Inability to communicate on-site using phones or simple radios ■ The MCA radio service will end in 2029, leaving no emergency communication means between the headquarters and the site *For more details, please download the PDF or feel free to contact us.

• Radios, walkie-talkies, and intercoms

A business radio is a communication device used for business communications, emergency information transmission, and on-site instructions. To improve operational efficiency and safety, they are actively used in various settings such as construction sites, security, transportation, and event management. This article will provide detailed explanations of the basic knowledge, types, selection criteria, and 15 recommended models of business radios based on distance. We will provide information to help you find the suitable radio to enhance efficiency in your operations. *For detailed content of the column, you can view it through the related links. For more information, please download the PDF or feel free to contact us.*

• Radios, walkie-talkies, and intercoms

The "GRATINA (KYF44)" is a mobile phone designed for businesses, equipped with high-quality call capabilities and a reliable recording function. If there are two or more missed calls from the same person within 10 minutes, the ringtone will gradually increase in volume, and the vibration duration will be extended. Additionally, without the need for earphones or conversion cables, you can listen to the radio within the broadcast area by simply touching the bottom of the device. This feature allows you to obtain useful information during emergencies, such as disasters. 【Features】 ■ Advanced call functions to ensure you never miss important calls ■ Durable and hygienic, providing comfortable use over time ■ Smart features and peripherals that evolve your work style *For more details, please download the PDF or feel free to contact us.

• Mobile phones and smartphones

The "DIGNO Tab2 5G KYT35" is a 5G-compatible tablet that strongly supports business operations. It can handle NFC reading and payments without the need for an external reader, and it is equipped with reliable durability and comprehensive business functions for on-site use. Additionally, it supports Dual SIM with both physical SIM and eSIM, allowing multiple networks to be utilized on a single tablet. This enables communication redundancy and can be effectively used as a BCP (Business Continuity Plan) measure. 【Features】 ■ Handles NFC reading and payments without an external reader ■ Reliable durability and comprehensive business functions for on-site use ■ Streamlining of management tasks and robust security measures *For more details, please download the PDF or feel free to contact us.

• Mobile phones and smartphones