Electromagnetic anechoic box - List of Manufacturers, Suppliers, Companies and Products

Electromagnetic anechoic box Product List

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Can directional antennas actually transmit radio waves to the intended location?

Can directional antennas actually transmit radio waves to the intended location?

[Application Case] Demonstrating the Truth and Lies of Wi-Fi

【Product Introduction】 ■Radio Wave Dark Box / Shield Box Taurus Series MY1530 A large size that accommodates large test objects. A turntable can be installed as an option. When you stop in front of a station in the city and look up, you may see Wi-Fi (wireless LAN) antennas among various antennas on the rooftops of buildings. From what I have observed, it seems that many Wi-Fi antennas are "directional antennas" designed to transmit signals in a specific direction.

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Radio wave shielding box system for production lines

Radio wave shielding box system for production lines

[Application Example] Communication Evaluation of Wireless Modules

【Product Introduction】 ■Handheld Spectrum Analyzer Compact, lightweight, battery-operated (low power consumption), and low cost. Despite being handheld, it offers performance comparable to larger models. ■Anechoic Chamber / Shielded Box Low cost, lightweight, and short delivery time! High-quality, reliable, and cost-effective anechoic chambers and shielded boxes provided by a measurement instrument manufacturer. The anechoic chamber has the following functions, allowing for accurate characteristic measurements of the DUT (Device Under Test): 1. Provides an environment unaffected by external electromagnetic waves. 2. Blocks leakage of electromagnetic waves to the outside. 3. Reduces interference within the anechoic chamber. By leveraging these characteristics and combining them with other measuring instruments and testing evaluation terminals, they can be permanently installed as production line equipment for quality inspection and functional testing of various wireless module-equipped devices (such as wireless LAN and Bluetooth).

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I tested the function that disconnects devices that continue to connect to WiFi despite poor signal.

I tested the function that disconnects devices that continue to connect to WiFi despite poor signal.

[Application Case] Demonstrating the Truth and Lies of Wi-Fi

In the previous installment of this series, it was revealed that in the experiment introduced, it is not the access point (AP) but the terminal side that determines the timing for executing roaming over Wi-Fi (wireless LAN). Additionally, it became clear that some terminals do not roam quickly and only change their connection to the next AP after a while following a communication interruption. 【Product Introduction】 ■ Radio Shield MY1530 ■ High-Speed Programmable Attenuator MAT810 *For more details, please refer to the PDF document or feel free to contact us.

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Is it really possible to be connected to Wi-Fi but unable to communicate?

Is it really possible to be connected to Wi-Fi but unable to communicate?

[Application Case] Demonstrating the Truth and Lies of Wi-Fi

【Product Introduction】 ■Radio Shielded Box MY1530 *For more details, please refer to the PDF document or feel free to contact us. There are likely many readers who have the impression that "Wi-Fi (wireless LAN) comes with its share of troubles." I often hear stories like "the connection drops" or "I feel like the Wi-Fi connection got slower when I moved to the conference room with my PC." Among these troubles, what has been on my mind recently is the issue of "the Wi-Fi icon is displayed on the smartphone screen, but there is no connection" or "I moved a little and lost the connection. But it didn't switch to LTE either." These are frustrating troubles that are hard to understand, but they actually occur frequently. There are various causes, and this time I will introduce a case where "differences in signal strength between devices" is a contributing factor. *For more details, please refer to the PDF document or feel free to contact us.

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Is it true that Wi-Fi stops when it detects radar waves?

Is it true that Wi-Fi stops when it detects radar waves?

[Application Case] Demonstrating the Truth and Lies of Wi-Fi

【Product Introduction】 ■Radio Wave Dark Box MY1530 *For more details, please refer to the PDF document or feel free to contact us. Wi-Fi (wireless LAN) communication uses the 2.4GHz and 5GHz bands. Among these, the 2.4GHz band is also used by devices such as microwave ovens and cordless phones, and it is widely known that these can interfere with Wi-Fi communication. *For more details, please refer to the PDF document or feel free to contact us.

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A hard-to-believe story related to Xmas and Wi-Fi

A hard-to-believe story related to Xmas and Wi-Fi

[Application Case] Demonstrating the Truth and Lies of Wi-Fi

【Product Introduction】 ■Radio Wave Dark Box MY1530 *For more details, please refer to the PDF document or feel free to contact us. Christmas is just around the corner. Speaking of Christmas, around this time last year (2015), I came across several articles on various websites stating that "Christmas lights could slow down Wi-Fi (wireless LAN)." Tracing back the source of the discussion, it was mentioned in an introduction to a certain Wi-Fi connection verification app as an example of interference, citing "microwaves, baby monitors, and Christmas lights." The interference between microwaves and Wi-Fi is a well-known issue. It is also easy to imagine that baby monitors transmit audio and video using wireless technology. It wouldn't be surprising if other household appliances we commonly use also interfere with wireless LAN signals. However, the idea that "Christmas lights" could cause interference is hard to believe. *For more details, please refer to the PDF document or feel free to contact us.

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Is high-speed "channel bonding" only a good thing?

Is high-speed "channel bonding" only a good thing?

[Application Case] Demonstrating the Truth and Lies of Wi-Fi

【Product Introduction】 ■Radio Wave Dark Box MY1530 A large size that accommodates large test objects. A turntable can be installed as an option. For 802.11n and 11ac, there is a technology called channel bonding that allows multiple channels to be combined (i.e., expanding the frequency width used) to increase the communication bandwidth, as shown in Figure 1. In particular, with 802.11ac, bonding can be done over a width of 80MHz, equivalent to four channels. This results in approximately four times the communication speed compared to a 20MHz width. *For more details, please refer to the PDF document or feel free to contact us.

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Is it true that you can use WiFi communication even 100 meters away from the access point?

Is it true that you can use WiFi communication even 100 meters away from the access point?

[Application Example] Demonstrating the Truth and Lies of Wi-Fi

"How far can Wi-Fi (wireless LAN) communicate?" This is one of the questions frequently asked by users, but it cannot be easily answered as various conditions are involved. I have seen various news articles and reports on long-distance wireless LAN communication experiments in the past, but what left an impression on me was the story of a successful wireless LAN communication test between islands. It was surprising to hear that they achieved communication over approximately 60 km using antennas with high directionality and gain on both the receiving and transmitting sides. [Product Introduction] ■ Radio Wave Dark Box MY1530 ■ High-Speed Programmable Attenuator MAT810 *For more details, please refer to the PDF materials or feel free to contact us.

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