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Does the signal shielder need shielding coverage for 4800M band?

Does the signal shielder need shielding coverage for 4800M band?

  • 2022/09/02

In the mainstream signal shield, all can shield the 2G, 3G, 4G and 5G signals of the mobile phone at the same time, but there are usually at least 10 shield modules inside the shield. In the product technical data published by various mobile phone shield manufacturers, you can see that most manufacturers have labeled the shield modules for 4800-4900MHz band. Then, in the existing communication network environment, Does the shield really need to be shielded for 4800-4900MHz bands?

According to publicly available data, 4800MHz band is just a short term, actually refers to 4800-5000MHz, mainly used in the N79 band of 5G mobile phone. In mainland China, 4800-4900MHz is allocated to China Mobile 5G, 4900-4960MHz is allocated to China Radio and Television. When shielding all 5G signals, of course, this 4800MHz band cannot be ignored by the signal shielder. However, as we know, the two communication operators, China Mobile and China Radio and Television, have not fully deployed the 5G base station with 4800MHz band throughout the country. In particular, China Mobile uses the 4800MHz frequency band as a small-scale local private network in a very small number of areas and occasions.

Therefore, now in most provinces, cities and regions in China, our 5G mobile phones can not receive base station signals from 4800MHz band, which will find an embarrassing result: in fact, the 4800MHz shielding module installed in the mobile phone shield is redundant, whether or not there is this shielding module has no impact on the overall shielding effect of the mobile phone. So, can this 4800MHz module in the mobile phone shield be omitted and no longer installed? It will be possible in the short term, or even for two or three years, even if operators will fully open and popularize the 4800MHz band in the future, it will be possible to supplement the installation at that time.

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