Simple wireless device×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 Manufacturers, Suppliers, Companies and Products

Simple wireless device Product List

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Enhanced wave response radio device / Registered station 'SR741' * Lightweight, waterproof and dustproof IP68

Enhanced wave response radio device / Registered station 'SR741' * Lightweight, waterproof and dustproof IP68

Compact, robust, and clear communication! Traditional high-frequency circuit design resistant to interference.

The SR741 is a wave-enhancing radio equipped with professional-grade basic performance and reliability, along with a variety of features to support on-site operations. It boasts top-class dust and water resistance with an IP68 rating, allowing for safe use even in rainy conditions or dusty construction sites. Various functions, such as the quick answer feature and vibrator incoming call function, support smooth business communication. 【Features】 - Equipped with 82 channels of digital simple radio (registered station) - Ensures reliable communication even in loud noise or strong winds - High-quality sound and loud volume at 800mW - Lightweight and compact with over 16 hours of battery life - Top-class dust and water resistance (IP68) *For more details, please refer to the PDF document or feel free to contact us.

  • Radios, walkie-talkies, and intercoms

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[Radio Equipment Rental Case] Ski Resort Operations *Interference Countermeasures

[Radio Equipment Rental Case] Ski Resort Operations *Interference Countermeasures

Avoiding interference with a digital simple radio using an amplification type! A case where operations became more comfortable by shortening the antenna.

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

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[Reiwa 5 Amendment] Regarding the amplification of digital simple radio equipment and transceivers.

[Reiwa 5 Amendment] Regarding the amplification of digital simple radio equipment and transceivers.

Introduction of license procedures due to channel increases and legal amendments, as well as compatible models, in the column.

The frequency of digital simple radio equipment (registered stations, licensed stations) has been increased. In this column, we will summarize the key points after the changes. On September 8, 2023, the frequency for digital methods in the 350MHz and 460MHz bands was expanded for simple radio stations. Additionally, remote use and relaying have also become possible. For information on the legal revisions, please refer to the Ministry of Internal Affairs and Communications website. *For detailed content of the column, you can view it through the related links. For more information, please feel free to contact us.

  • Radios, walkie-talkies, and intercoms

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Digital Simple Radio for Increased Wave Response / Licensed Station 'SR810UA/SR820U'

Digital Simple Radio for Increased Wave Response / Licensed Station 'SR810UA/SR820U'

License bureau (3B, 3C) compatible! Superior performance and functionality that meets trust in various fields.

The "SR810UA/SR820U" is a compact, rugged, professional-grade radio that boasts excellent basic performance and reliability, designed for amplification support. It features top-class dust and water resistance (IP68) and employs the expertise of communication equipment manufacturers, with a robust internal structure carefully crafted down to each individual component. Additionally, it is equipped with user-friendly original features such as multi-channel standby functionality and CUE (cue) function for emergency notifications. 【Features】 ■ Lightweight and compact ■ 5W high output, wide communication area ■ Dust and water resistant (IP68) ■ Noise cancellation function ■ 16 hours of operation, long battery life *For more details, please refer to the PDF document or feel free to contact us.

  • Radios, walkie-talkies, and intercoms

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Digital Simple Radio: Explanation of the differences between licensed stations and registered stations, as well as amplification.

Digital Simple Radio: Explanation of the differences between licensed stations and registered stations, as well as amplification.

An explanation of the basic knowledge of digital simple radio, the differences between licensed stations and registered stations, the digitization of radio equipment, and the increase in channels!

Digital simple radio refers to a type of simple business radio that transmits using digital signals. Compared to traditional analog systems, it features clearer audio and less noise. It helps improve the efficiency of business communications and enhance safety. This article will explain the basics of digital simple radio, the differences between licensed and registered stations, the digitization of radios, and the increase in channels. *For detailed content of the column, please refer to the related links. For more information, feel free to contact us.

  • Radios, walkie-talkies, and intercoms

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[Case Study of Radio Equipment Introduction] Warehouse Industry *Improving Operational Efficiency with Multi-Channel Transmission and Reception

[Case Study of Radio Equipment Introduction] Warehouse Industry *Improving Operational Efficiency with Multi-Channel Transmission and Reception

Utilizing the secondary PTT function! Introducing a case study of successful automation by setting multiple functions.

To our warehouse customers, we would like to introduce a case study of the implementation of "wireless communication devices" that we handle. We made changes to facilitate smooth communication from the warehouse to the office and to ensure that no communications from the office are missed, in order to prevent mistakes due to missed communications in business operations. As a result of the implementation, contacting the office has become possible through secondary PTT, eliminating the need to change channels. [Case Overview (Partial)] ■Industry: Warehouse ■Adopted Manufacturer: Motorola Solutions, Inc. ■Model Implemented: Portable Digital Simple Radio "MiT3000" ■Number of Units Implemented: 10 units *For more details, please download the PDF or feel free to contact us.

  • Radios, walkie-talkies, and intercoms

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Introduction to Digital Simple Radio Rental Service

Introduction to Digital Simple Radio Rental Service

We will provide a detailed introduction to basic knowledge, the benefits of rental, recommended models, and usage scenarios!

Digital simple radios are wireless devices that utilize digital communication signals and are essential communication tools for businesses and events. However, purchasing them can lead to significant costs and maintenance burdens. In this article, we will provide detailed information on the basics of digital simple radios, the benefits of renting, recommended models, usage scenarios, and procedures. We hope you find it helpful for selecting the right model and utilizing rental services according to your needs. *For more detailed information, you can view it through the related links. For further details, please download the PDF or feel free to contact us.*

  • Radios, walkie-talkies, and intercoms

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[Wireless Radio Rental Case] Ski School *Clear sound with earphones attached

[Wireless Radio Rental Case] Ski School *Clear sound with earphones attached

We have prepared a "seasonal discount" for customers using our services in winter! You can enjoy it more easily.

Introducing a case study on the seasonal rental of the "Digital Simple Radio SR741" at a ski school. The company found that at ski resorts, especially near the mountain summit or in valleys, mobile phones often do not have signal, making them unreliable for emergency communication. Radios, unlike mobile phones, do not rely on base stations for communication, making them ideal for maintaining contact in areas with poor reception, such as certain ski runs or near the summit. 【Case Overview】 ■ Challenges - Feeling that students cannot hear instructions during lessons - Difficulty operating smartphones while wearing gloves, and concern about dropping them ■ Proposal - Clear sound with earphones, ensuring voices are heard even from a distance - Easy operation using a remote speaker microphone *For more details, please download the PDF or feel free to contact us.

  • Radios, walkie-talkies, and intercoms

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[Column] Are radios subject to interception? Introducing risks and effective countermeasures.

[Column] Are radios subject to interception? Introducing risks and effective countermeasures.

A detailed explanation from the basics of wireless eavesdropping, easily intercepted radios, to specific countermeasures!

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

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