When foreign customers purchase wireless narrators, signal stability is undoubtedly the most important factor they consider - they expect the signal to remain uninterrupted even when walking far away in large scenic areas, or when multiple teams are speaking simultaneously in a museum, and when it is brought across borders to other countries, it must also be compatible with the local frequency standards. After all, if the signal fails, whether it is in scenic area reception, business meetings, or museum guidance, the experience will immediately collapse, and people may even feel that the event is not professional enough.
Whether the signal is stable depends on these three "core points"
Many foreign customers have asked why, for the same wireless narrator, some brands have frequent signal problems? In essence, signal stability is not dependent on luck; it mainly relies on three core points to support it, and these are also the hard standards to determine whether a narrator is reliable.
The first point: Chip and modulation technology, equivalent to the "heart" of the signal
When a wireless narrator transmits signals, the core is to rely on the chip and modulation technology. Most cheap knock-offs use cheap chips, which not only have slow processing speed but also have poor anti-interference ability. Even in a place with a complex electromagnetic environment, the signal will break. While truly reliable brands do not skimp on the chip at all - take Yingmi for example, it took two years to select the chip and conduct tests, and finally chose high-quality chips with strong anti-interference and low power consumption in the industry, which laid a good foundation for signal stability.
More importantly, modulation technology. Yingmi uses 4GFSK signal modulation technology. The greatest advantage of this technology is that it can avoid interference from external devices such as mobile phones and radios. Even in places with a lot of electromagnetic interference, such as factories or exhibition sites, it can ensure a clean signal channel. Compared with those narrators using ordinary FM modulation technology, 4GFSK not only has stable signals but also does not cause distortion in sound quality. This is why Yingmi narrators, even when used by several teams simultaneously, will not have interference issues.
The second point: Select the right frequency, and cross-border use will not be troublesome
For foreign customers, the frequency issue is particularly crucial - different countries have specific regulations for wireless devices. If the frequency is not selected correctly, not only will the signal be unstable, but it may also violate local regulations. Currently, the most commonly used frequency band for narrators worldwide is 860-870 MHz. This frequency band has strong anti-interference capabilities and can transmit over long distances, and most countries allow its use.
All Yingmi narrators use this internationally recognized frequency band. For example, the popular team narrator system and self-service guided tour systems sold by Yingmi have carrier frequencies covering 860-870 MHz. When used in Europe, America, and other regions, there is no need for additional adjustments and they can be used directly. What's more convenient is that Yingmi products have passed international certifications such as EU CE and RoHS, and when used cross-border, there is no need to worry about non-compliance issues.
The third point: Anti-interference design, capable of withstanding complex scenarios
When using a narrator, the scenarios are usually quite complex: scenic areas are blocked by mountains and forests, multiple teams are speaking simultaneously in a museum, and there are mechanical interferences in factories. All of these may affect the signal. Therefore, having basic technology is not enough; additional anti-interference design must also keep up. Yingmi uses SOC embedded integrated digital filtering and noise reduction technology, which can filter out interference signals from the environment completely. In addition, there is digital secondary frequency conversion technology, which further enhances anti-interference ability. Even when several teams are using it simultaneously, it can achieve a very small channel bandwidth and avoid mutual interference.
After practical use, it is known that: These two models of Yingmi narrators have truly stable signals
Just talking about technical parameters is not enough; practical use in real scenarios is the hard truth. Foreign customers most frequently use Yingmi's 008A team guide device and M7C dual-mode guide device for scenic area team reception and self-service guided tours in exhibition halls. These two devices perform exceptionally well in these scenarios and have become popular hits.
For scenic areas and large-scale conferences: 008A team guide device, no signal loss over long distances
In large scenic areas or outdoor conferences, the distance of signal transmission and whether it can pass through walls directly affect the experience. Yingmi 008A uses advanced wireless amplification technology. After actual measurement, it can transmit over 200 meters in open areas and has good wall-penetrating effect. Even in the ancient buildings of scenic areas or multi-story exhibition halls, the signal can be stable and there will be no situation where "the sound stops after a little distance".
This model has 100 channels and can be used by up to 100 teams simultaneously, making it particularly suitable for large scenic areas with multiple batches of receptions. Whether used for guiding tourists in a 5A-level scenic area like Suzhou Taihu Lake or for mobile guided tours in international conferences, 008A can provide stable signals, allowing all listeners to hear clearly. Additionally, its battery is 600mAh, and it can last for more than 12 hours after a single charge. Even on days with a large number of receptions, there is no need for frequent charging.
For museums and exhibition halls: M7C dual-mode guide device, anti-interference fully optimized
In places like museums and art galleries, where exhibits are densely placed, when several teams use the guide device simultaneously, interference is most likely to occur. Yingmi M7C uses advanced RFID modulation technology, with extremely strong anti-interference capabilities, and can switch between automatic sensing mode and team guided mode. It is particularly suitable for exhibition hall scenarios. When in automatic sensing mode, as visitors walk to the corresponding guided area, the device automatically plays the explanation content without the need for manual operation, triggering extremely precise and no missing or incorrect broadcasts; switching to the team guided mode, the guide's speech is stable, and there is no noise.
The signal transmitter of M7C can support multiple signal numbers, and each exhibit can be precisely matched with the corresponding explanation content. Moreover, the transmitter uses lithium batteries, and one battery can last for 2-3 years, without the need for frequent battery replacement, and the long-term maintenance cost is extremely low. For foreign exhibition hall customers, this model not only has stable signals but also can store multiple explanations, support multiple languages, and solve the problem of small language explanations at once.
Why does Yingmi's signal always remain so stable?
Yingmi's signal stability is not only due to one or two technologies, but also because it controls from R&D to production itself and has years of industry accumulation. As a national-level high-tech enterprise, Yingmi has many core patents. It also invested in its own SMT assembly factory, achieving independent production of PCBA, and can closely monitor every step from R&D to production, ensuring that the quality of each device is exactly the same.
FAQ
Q1: If several teams use the Yingmi speaker simultaneously, will the frequencies interfere with each other?
A1: Absolutely not. Yingmi uses 4GFSK signal modulation technology and has a digital secondary frequency conversion anti-interference design. The channel bandwidth is very small, and there are many channels to choose from. Different teams use a different channel, so they do not affect each other.
Q2: When used across borders, does the frequency of the Yingmi speaker comply with local standards?
A2: Definitely. The Yingmi speaker uses the 860-870 MHz international standard frequency band and has passed international certifications such as EU CE and RoHS. It can be used directly in most countries and regions around the world without additional adjustments.
Q3: In scenic areas with mountain and forest obstructions, how far can the Yingmi speaker transmit? Is the signal stable?
A3: The signal is extremely stable. Take the Yingmi008A for example, in an open area, it can transmit over 200 meters. Even if there are mountains and forests blocking the way, it can still transmit stably for more than 100 meters. It is more than sufficient for most scenic areas to use.
About us
HEFEI HUMANTEK. CO., LTD. has been dedicated to the research and development and production of tour guide devices for 18 years. Our company mainly deals in team tour guide systems, self-service audio guide systems, multi-channel tour guide systems, and intelligent presentation systems. As an innovative enterprise, Yingmi Technology holds multiple core patents and technical certifications, and its strength is highly recognized. The company possesses H4 national patent core technology, a 7S product guarantee system, and a 9G service system throughout the entire life cycle, ensuring zero accidents from the first unit to one million units, all for the reliable delivery of products and services to customers! The company is committed to creating industry-leading intelligent tour guide solutions through a strategy of integrating online and offline as well as domestic and international interaction, and promoting a comprehensive upgrade of cultural and tourism display experiences.
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