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  4. What is an anechoic chamber? Is it really necessary?
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  • Sep 02, 2025
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Sep 02, 2025

What is an anechoic chamber? Is it really necessary?

峰光電子 峰光電子
An anechoic chamber is a "special room" used to test the performance and safety of wireless devices. In a regular room, invisible waves from smartphones, Wi-Fi, and televisions are present, making it impossible to conduct accurate tests on devices. Therefore, an anechoic chamber is a special space that "completely shuts out external waves" and also ensures that "waves inside do not leak outside." When is it used? - Testing and inspection of wireless devices - Testing for obtaining technical standard conformity certification (Giteki) - Confirming that there is no interference from waves to other devices In other words, it is "an essential place for creating accurate and reliable wireless devices." What is the inside of the room like? - The walls, ceiling, and floor are covered with "sponge-like materials that absorb waves (wave-absorbing panels)." - The entire room is covered with a metal shield to prevent external waves from entering. Why is it so important? Wireless devices can significantly impact medical equipment, airplanes, and fire department radios, depending on where they are used. That is why it is crucial to thoroughly verify that they emit waves correctly and safely in a place free from external influences, which is the anechoic chamber.
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UHF Band RFID Small Antenna [Inventory Management in Tight Spaces]

A left-handed circularly polarized antenna that can be combined with a specific low-power reader/writer! Waterproof types are also available, making it suitable for narrow factory lines.

The FP9203 has a gain of 3dBi, making it an antenna that can be combined with specific low-power reader/writers. Its compact size makes it suitable for applications that require space-saving solutions. 【Features】 - Compact size allows installation in narrow production lines - UHF band enables long communication distances and wide-ranging communication - Capable of reading multiple tags simultaneously, reducing time for inventory management and stocktaking - High-precision inventory management through automatic data recording - Waterproof options available, effective in environments where water droplets may be present - Linking individual information allows for rapid and accurate tracking of manufacturing and distribution processes - Reducing food waste by optimizing production volume through accurate inventory management *For more details, please refer to the PDF document or feel free to contact us.

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UHF Band RFID Gate Antenna [Shoplifting Prevention]

Enables a stylish design of ultra-thin, narrow-directional gates! With a circularly polarized RFID antenna, it minimizes misreads for security management.

The "FG9206Y/FG9206Y-3" has a focused directionality that narrows the reading area for tags. Additionally, its ultra-thin design makes it suitable for installation in places like shops where aesthetic considerations are important for anti-shoplifting gates. 【Features】 ■ Pinpoint detection by narrowing directionality ■ Reduces misreads by adopting circular polarization while maintaining narrow directivity ■ High design flexibility for gates due to its thin profile ■ Can be installed not only on walls but also under floors ■ Usable for various applications beyond gates *For more details, please refer to the PDF document or feel free to contact us.

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UHF Band RFID Spot Antenna [Smart Management for Labor Savings]

Read only the targeted RFID tags! It is suitable for narrow production lines where you want to limit the reading range and reduce misreads.

The "FSP9203" is an antenna suitable for applications that want to limit the reading area. It has a sharp directional focus, allowing it to read only the tags directly in front of the antenna, and since it is not a proximity type, the reading area extends vertically as well. 【Features】 ■ Accurate inventory management by reading only the desired tags ■ Cost reduction by eliminating the need for a radio absorption zone ■ Real-time product tracking enables pinpoint identification in case of issues ■ Smart management achieved by reading multiple tags at once in a narrow area *For more details, please refer to the PDF document or feel free to contact us.

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UHF Band RFID Gate Antenna [Logistics Management]

Enables a stylish design for ultra-thin, narrow-directional gates! With a circularly polarized RFID antenna, it minimizes misreads and manages quantities effectively.

The "FG9206Y/FG9206Y-3" has a focused directionality that narrows the tag reading area, making it suitable for logistics quantity management using UHF band RFID and for anti-shoplifting gates. 【Features】 ■ Pinpoint detection by narrowing directionality ■ Slim design allows for stylish gate designs ■ Can be installed on walls or under floors ■ Usable for various applications beyond gates *For more details, please refer to the PDF document or feel free to contact us.

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UHF Band RFID Mat Antenna [Centralized Management of People Entering and Exiting]

Monitor the entry and exit of people! A UHF band RFID antenna that can be easily installed just by placing it under the carpet.

The FP9211 is ultra-thin and lightweight, with a thickness of less than 5mm, making installation and movement easy. Its directional focus makes it suitable for applications such as entry and exit management. 【Features】 - Detects the entry and exit of individuals with tags simply by passing over the mat. - Lightweight mat type requires no installation, making setup and relocation easy. - Uses orthogonal linear polarization, allowing for wide compatibility with tag orientations and enabling long-distance reading. *For more details, please download the PDF or feel free to contact us.

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Advanced wireless technology for the mobility industry.

In cars equipped with various wireless systems, wireless technology is one of the essential technologies!

As you all know, cars are equipped with many wireless systems. They are indispensable for improving safety and convenience. - Immobilizer (LF band) - FM (MF band) - AM (HF band) - Keyless entry, GPS (UHF band) - ETC/DSRC (SHF band) - Collision avoidance detection (millimeter wave) The frequency bands used are varied. Until now, many wireless technologies have been used for preventive safety to prevent accidents, such as collision avoidance. Based on the vast amount of accumulated information, it is said that autonomous driving technology will increase exponentially in the future. Wireless technologies such as millimeter wave radar, LiDAR, and GPS are essential for autonomous driving, and high reliability is also required. "Continuous wireless" and "wireless that compensates when interrupted" will be demanded at even higher levels going forward. Our company not only has a track record of supplying antennas for vehicles but also has experience supplying antennas for satellites launched on rockets. To meet various needs, we provide products with meticulous designs while conducting measurements in an anechoic chamber.

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Business Introduction: Hoko Electronics Co., Ltd.

Antenna manufacturer for wireless devices! With 40 years of trust and achievements, we meet the needs of various fields.

Fengguang Electronics Co., Ltd. is a manufacturer that designs, evaluates, manufactures, and sells peripheral products for wireless equipment, including: - Antennas for communication devices - Various coaxial connectors - Various cable assembly products - RFID readers/writers We conduct measurements and evaluations using our own anechoic chamber and measuring instruments, and we engage in OEM business that provides a seamless process from custom design and manufacturing to sales tailored to customer needs. Our products are utilized not only in wireless devices and measuring instruments but also in applications requiring high reliability, such as railways, satellite launch rockets, and automotive uses. In addition to standard RFID antennas, we can also procure and provide the most suitable products from both domestic and international sources based on specific requests. <Features> ■ Complete in-house (domestic) OEM solutions for antennas ■ High reliability product development system with a fully equipped anechoic chamber ■ Wide-ranging support for assembly, machining, soldering, etc. ■ Small lot orders are also welcome *For more details, please download our catalog or feel free to contact us.

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[Campaign] Free Rental of RFID Antennas

Would you like to experience and evaluate UHF band RFID antennas for free?

Do you have any requests or concerns like the ones listed below? We are offering free rentals of our standard lineup of [UHF band RFID antennas]. Please take this opportunity to experience and evaluate the [UHF band RFID antennas]! <Common concerns we often hear> ■ I am looking for an antenna but don’t know which one to choose. ■ I want to check if I can use the standard antenna as is. ■ I can’t understand the differences without comparing it to the current product. ■ I can’t determine if it can be installed without the actual product. ■ Can’t I borrow it for free? If you have any of the above concerns and want to ensure you select the right product, we look forward to your inquiry about the free rental. Please note that the number of rental products is limited, and depending on the timing, it may take some time before you can borrow one. The products available for rental are as follows. *For more details, please download the catalog or feel free to contact us.*

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Changing Roles of Robots in the Manufacturing Industry

From strong to gentle! Wireless technology in robots that require cooperation with humans.

The image that comes to mind when hearing "robot" varies greatly depending on the era. Those who imagine a robot as 【operated by humans / large / powerful】 may be from a slightly veteran generation like mine. On the other hand, the recent trend is to envision robots as 【autonomous / small / delicate】. Against the backdrop of this change in values, robots themed around "collaboration," where humans and robots support each other in the same workplace, are currently assisting in environments struggling with labor shortages. These robots rely on 【wireless technology】 to achieve functions such as 【sharing location information】【remote monitoring】【coordination of multiple devices】. Additionally, by correctly understanding 【wireless technology】, we can ensure safety and security regarding various types of wireless communication and the 【interference】 that can occur when using many robots at once. By eliminating the constraints of cables, 【wireless technology】 enables flexible arrangements and collaborative work with humans, acting as the "invisible nerves" of robots and supporting flexible and safe working methods. *For more details, please feel free to contact us.

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【Metal Crack Repair】We repair cracks in metal products without applying heat.

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The "Mechanical Stitch Method" by Nichinichisui Road Machinery Co., Ltd. is a new technique that allows for the repair of metal cracks without the application of heat. By using special bolts and reinforcement plates, cracks are physically removed, and repairs are made without causing any thermal impact to the base material. Repairs can be carried out in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. ◎ For more details, please contact us. ◎ If a detailed technical explanation is needed, please contact us.

Mar 20, 2026

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Aluminum casting repair: Metal crack repair without applying heat.

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The "Mechanical Stitching Method" by Nichinichisui Road Machinery Co., Ltd. is a new technique that allows for the repair of metal cracks without the application of heat. By using special bolts and reinforcement plates, cracks are physically removed, and repairs are made without causing any thermal impact on the base material. Repairs can be carried out in environments where open flames cannot be used. Since no heat is applied, the disassembly of equipment is minimized. ◎ For more details, please contact us. ◎ If a detailed technical explanation is needed, please contact us.

Mar 20, 2026

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Human Body Day 2025 Event Report - Nack Image Technology

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On November 6th (Thursday) to 7th (Friday), 2025, we held the "Human Body Day 2025" at the NAC Image Technology Akasaka Multi-Purpose Space. We have uploaded videos of the highlights from each company and the presentations that took place on the day to our website. We encourage you to take a look. ---[Report on Human Body Day 2025 is here]------------------- https://info.nacinc.jp/jintaiday2025-report ------------------------------------------------------------------------- On the day of the event, participants were able to experience a wide range of products in a hands-on session format, including motion capture, force plates, eye tracking, and human body analysis software. We received numerous comments from attendees expressing high satisfaction, saying, "It was great to gain various information all at once," which makes us very happy. NAC Image Technology will continue to provide "valuable products to our customers." We hope you will join us for our next event as well.

Mar 20, 2026

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AAEON ArrowLake equipped industrial COM module Type 6 standard

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Features: ● Equipped with Intel Core Ultra 7 255H/7 155H/5 225H/5 125H ● LPDDR5x 16GB/32GB/64GB onboard ● M.2 NVMe 256GB onboard ● USB 2.0 x 8, USB 3.2 (10Gbps) x 4 ● PCIe Gen 4 [x8] x 1, PCIe Gen 3 [x1] x 4, PCIe Gen 3 [x4] x 1 (2 lanes co-lay with SATA; BOM option) ● 2.5GbE x 2 ● COM-HPC Mini standard, size 95mm x 70mm ● Optional items ECB-980A: Development carrier board HPC-ARHm-FAN01: CPU fan HPC-ARHm-HSP01: Heat spreader (Note: heat dissipation is required in the enclosure)

Mar 19, 2026

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AAEON ArrowLake-equipped industrial COM module COM-HPC R1.2 Mini standard

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Features: ● Equipped with Jetson AGX Orin 32GB/64GB ● Gigabit LAN ×1, 10Gigabit LAN ×1 ● USB 3.2 Gen 2 (Type-A) ×4 ● DB-9 connector ×1 (for DIO 8 channels) ● DB-9 connector ×2 (supports RS-232/422/485: Rx/Tx/RTS/CTS) ● Jetpack 6.0.0 pre-installed

Mar 19, 2026

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