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One-Take-One Elevator System

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China Shenzhen Atnj Communication Technology Co., Ltd. certification
China Shenzhen Atnj Communication Technology Co., Ltd. certification
Customer Reviews
Good service and fast delivery

—— Aki Vaattovaara,Sweden

It arrived in time I am very satisfied with the support. The product si in very good conditions. I proved it and works very well.

—— JC Saavedra Libia,Peru

I an very satisfied with the Quality of the product. Also the miss that support me is very kind. she resolved all my doubts perfectly. the product arrived at time as usual.

—— JC Saavedra Libia,Peru

Ms Anne Wang works hard to provide very good service for customers. A pleasure to deal with. Product is as described and good value for money.

—— Lindsay Pettigrew,Australia

Excellent product as describe. Very good seller ! 100% recommended, 100% satisfied ! shipping very fast to Cambodia.

—— loem kom,Cambodia

I have received the repeater in 5/6 days, it is a robust case repeater, it looks nice, and it work perfectly. I suggest this brand repeater. good work

—— andrea cristofanini,Italy

получил товар. качество и параметры сответствуют описанию. продавец молодец!

—— akbar karaev,Uzbekistan

Super fast delivery and superb service/help from supplier. I haven't had a chance to try out the product but I am confident it will work fine. If not, the supplier is really helpful and I am sure he will assist me with futher installation details

—— Attila Kinkopf,United States

I haven't used the product yet but it looks like a quality product. Wave Luo was very helpful, thank you very much!!!!

—— Shephard Mack,South Africa

ATNJ, You got good products with good services, fast and easy to communicate.

—— Borin SIM,Cambodia

Gracias excelente productos y el envío muy rápido

—— DANIEL COLILOPEZ,Mexico

Very technical and very welll organized and professional. Andrew has been a very helpful salesperson

—— gabriel haddad,Venezuela

Excelent product antennas and power.. its good, working very goog thanks ATNJ,

—— CARLOS GREGORIO,United States

Let’s be honest, the quality of my Vodafone mobile signal at home always left much to desire. I just was too lazy to do anything with it. I was absolutely satisfied with the rates and the quality of the signal that I had everywhere and my own house was an exception. However, the coronavirus pandemic changed everything. I started to spend much more

—— Ali , Spain

I bought this booster for my apartment because I was absolutely dissatisfied with the power of GSM and 4G signals that I had there. But now the situation has changed. Thank you for this booster, I finally don’t feel isolated when I stay at home alone.

—— Abdul Mohammed,Germany

I think that’s a very nice solution for those who suffer from problems with voice services and mobile internet and do not want to create any antennas or smth like that themselves. The price is absolutely fair and the quality is amazing.

—— Lena W.,Finland

I was very happy to see the discount that you offered. I know that quite often companies make discounts on goods that are not popular but in this case, I see that the situation is quite opposite. I like that this device is able to improve calls and the internet speed at the same time.

—— Giulia M.,Austria

Thank you! The booster is super cool for a private house. All the rooms are now covered with the improved signal. Now I can’t understand why we haven’t bought it earlier.

—— Nadine Nacht ,Germany

It’s a very cool booster! Thank you, dear team, for your attention to your clients’ needs and the prices that you offer. You are the best, ATNJ

—— Natalia L.,Norway

My 3G and GSM connection used to leave much to desire. But with m new booster I have practically forgotten all these problems. I really like that this device is so compact but so powerful. Thanks, guys, for your amazing work and fast delivery.

—— Goran N. ,Sweden

I can’t understand why I bought this repeater only 2 months ago and not earlier. That’s a very useful device for those who live in a rural area like my family. The improved quality of connection has significantly improved the quality of our life.

—— Lars M. ,United States

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One-Take-One Elevator System

April 3, 2022
Latest company case about One-Take-One Elevator System
Date: Mar.13 2019
Address: Laoyu Village Building, N0.13 PingJi Avenue, LongGang District, ShenZhen City.
 
1.The environmental survey
 
1、There are two elevators on the building, located in City area in Shenzhen, good
signal strength outdoors.
2、Pictures of the building:
 
3、Surrounding on the roof:
no any base station in the sight.
4、Signal Strength on the Roof.
The calling signal frequency of China Mobile is GSM900Mhz, excellent signal strength with -51dB.
 
The calling signal frequency of China Mobile is WCDMA2100Mhz, excellent signal strength with -57dB.
 
China Telecom has installed their signal systems in the building, so we don’t need to deal with the Telecom signal to avoid any signal conflict.
 
5、Survey of elevator and its signal
Elevator Surrounding:
 
Check inside the elevator, both of China Unicom and China Mobile is out of service.
 
2.Solution
 
Based on the above information:
1, Good Mobile & Unicom signal strength on the roof.
2, No any signal inside the elevator from Mobile & Unicom
3, 25-floor height
One-Take-One Elevator System would be adopted to cover elevator shaft and the
elevator box to keep the stable calling signal when elevator is working.
The Schematic Diagram as follows,
Device: 900/2100Mhz One-Take-One Elevator Dual band System.
 
 
3. Construction Wiring
4.Efficiency
After the test, the RU’s signal outputs of 900Mhz & 2100Mhz are +17dbm, which could ensure the signal coverage of the elevator.
 
Elevator 2, the RU’s 900Mhz has a full output power +17db, and output power of 2100Mhz is a litter weaker : only +08 db.
5.Testing in the elevator box.
When elevator is working from 1st floor to 25th floor, the signals both of Mobile and Unicom are full bar with fluent calling and clear voice.
 
In the low floors, the Mobile signal strength could reach -43db with fluent calling and clear voice.
In the low floors, the Unicom signal strength could reach -55db, with fluent calling and clear voice.

 

6.Conclusion
Before offering solution and starting to construct, the below information should be known in advance,
1, the frequency requested
2, the signal strength needed to achieve.
3, the floors of the building.
 
Based on the information offered, when the booster has full output power, we could use standard kit of elevator shaft system to solve the signal coverage problem for within 10 floors.
To solve the signal coverage problem more than 10 floors but within 30 floors, One Take-One Elevator System could be adopted.
 
 
 
 
Contact Details
Shenzhen Atnj Communication Technology Co., Ltd.

Contact Person: Mr. Wave Luo

Tel: +8618813582037

Fax: 86-755-86136774

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