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4G LTE AT&T 700/850/1900MHz Cell Phone Signal Booster Antenna for Band
Before purchase, please confirm your signal frequency
If your phone is Android system, you can download an App called "LTE
Discovery" to confirm the band and frequency.
If your phone is Apple system, please dial the NO. *3001#12345#* then click
Serving Cell Info" to check frequency and band.
Note:1.This Single Band Repeater kit is designed for AT&T 700/850/1900MHz Band
12/17/5/2.Because different regions have different frequencies, the booster
works only at the correct frequency.If the frequency is incorrect,the booster
will not work.If this problem occurs, please contact us and I will solve it for
2 .If you have any questions when you receive the booster,please fell free to
contact us.We will help you solve the problem,please don't worry.
Frequency Range: band 12, 17 ,band 5, band 2
band 12,17: Uplink: 698 ~ 716MHz Downlink: 728 ~ 746MHz
band 5 : Uplink: 824 ~ 849MHz Downlink: 869 ~ 894MHz
band 2 : Uplink: 1850 ~ 1910MHz Downlink: 1930 ~ 1990MHz
Max Gain: 70dB
Automatic shut down: When self – oscillate happened or attenuation value
reaches 20dB, power supply is shut down.
Power Supply: Input AC100~240V 50/60Hz，output DC 5V 2A
I /O Port: N-Female
1 * 700AT&T/850/1900MHz Tri-band Repeater
1 * AC Adapter
1 * Mounting Screw Kit
1 * English User Manual
1 * 3dBi Indoor Right Angle Antenna
1 * 6dBi Gain Outdoor Omni Directional Antenna with 50 Feet Cable
1)Wide Input Voltage:
Input DC Voltage Range 5-15V
2) Self-oscillation Elimination:
The system detects self-oscillation, first reduces the link gain, then detects
the loop, and finds that the self- oscillation is eliminated, the system
returns to normal working state, otherwise, the power is turned off to prevent
3) Inactivity Mode:
When no user calls, the device works in standby mode, the uplink power
amplifier is switched off, and the static power is decreased by 30%, so as to
achieve the purpose of energy saving.
4)AGC (Automatic Gain Control):
When the downlink output signal is too strong or self-oscillated, the uplink
and downlink can automatically reduce the gain and reduce the interference
5)Automatic Power Shut-down:
When the self-oscillation happens, and the link attenuation value reaches
20db, the MCU sends out the instruction and shut-down the PA.
6)MGC (Manual Gain Control):
In order to install the booster conveniently, all frequency band of the
booster have the Gain attenuation adjustment function, the adjustment scope is
0-20dB. You can rotate the Manual Gain Control Knob to the OFF state and turn
off the corresponding frequency band.
7) ALC(Automatic Level Control):
Automatically adjust the output gain down to optimal figure while the output
gain is above the optimal figure by the ALC circuit, this can greatly optimize
the calling quality, data transfer quality, avoid the signal self- oscillation,
and also very much reduce the interference to the cell tower, even if your
house is very close from the cell tower, you don't need to worry about the
interference and the trouble caused.
Continuous GREEN: normal;
Twinkly GREEN: input signals may be not enough.
Continuous YELLOW: stronger input signals, AGC is working;
Twinkly YELLOW: self–oscillation happen ,AGC is working, the attenuation value
is more than 12dB .
Continuous RED; power supply is shut down.
1. Three Months Free Replacement
2. 5 Years Manufacturer Warranty
3. Fast Handle time & Free Shipping
4. Support Wholesales，More Units More Discount
Note: This booster just can adapt to 700AT&T/850/1900MHz frequency signal
user, wrong frequency and only 1 bar or 0 bar outside signal may make booster
not working. Please check related frequency sites or call network operator to
make sure the right local frequency from base station.
FAQ Delivery details Terms of sales Payment Contact us FAQ We design,
develop, manufacture, market and service signal amplifiers systems for cell
phone, with our innovative, dedicated and experienced team. We can provide high
quality products and solutions that you want from your amplifier suppliers.
Welcome to buy.
1. What does a mobile phone signal booster include? How does it work? Can I
use the signal booster when the outdoor signal has 0 bar?
1) A signal booster kit mainly includes a signal amplifier ,an outdoor
antenna(with a 10 meters coaxial cable ), and an internal antenna(with a 5
meters coaxial cable) etc.
2) Outdoor antenna receives the signal from the base station to transmit to
the repeater, the signal is boosted around the place via the indoor antenna to
improve the call; It is suitable for transmitting the voice and data of mobile
phone, tablet PC, or the Internet.
3) Signal booster can only boost the mobile phone network signal, but does
not help to generate any signal. For example, if your outside signal has 0 bar,
it can not work or bring you any signal.
2. My outside signal only has 1 bar, the booster can bring me signal?
Yes, it can. According to this situation, you need a higher dB gain booster
80dB gain)+ a higher dbi outdoor LPDA antenna+ a higher dbi indoor wall panel
antenna. You can contact our customer service to get related information.
3. What do I need to know before ordering a signal booster?
Before ordering, you need to know your network operator frequency. Every
network operator has its own technology and frequency. The signal booster can
only work well when it is suitable for your network frequency, otherwise it
would not boost any signal.
4. I do not know my network frequency? How can I know it?
Before ordering, you can search the frequency site or call your network
operator to get information:
Other choice: contact the customer service to provide related information to
A. Tell us your network operator ,and it is used in which country.
B. Tell us network current signal type(2g 3g or 4g)
C. Tell us to use it to transmit voice or data
5. How can we do if we order the wrong frequency booster?
You can contact the customer service to get the solution.
6. Why is my signal still same after installing the booster kit?
A. The booster frequency is not suitable for your mobile phone network
B. The booster or the antenna is broken down
7. Mobile phone has full signal with booster, but can not make call or send
Maybe it is the signal input and signal output interfere with each other. You
need make sure:
There is separate wall between indoor and outdoor antenna, so that the two
antenna signal do not interfere with each other.
Please try to change the direction of outdoor antenna.
8. What square meters signal will the booster cover？
According to the house construction, material, outside signal, etc., it can
boost signal as much as 2000 square meters. More information, you can contact
the customer service.
9. About receiving the incomplete parcel?
Please contact the customer service to solve, do not leave the negative
feedback, open return or case request.
10. Why can I get a signal on my mobile phone outside but not inside of house?
Houses are built with much reinforced concrete, roof is with heat shield , or
the outside walls are backed with foil. That metal which is used in many
construction materials or the metal construction acts as a total barrier for
mobile phone signals. In this case, the signal booster can work and play an
11. What is the difference of different outdoor antennas?
For area with good outdoor signal strength, you will need the standard Omni
directional antenna which does not need to be pointed at the local mast asit
receives and broadcasts the signal in all directions, such as the omni tube
antenna ,the fiber glass antenna, etc. If the outdoor signal is weak, you need
the outdoor directional antenna which should be pointed to the base station to
get signal, such as the outdoor yagi antenna, the outdoor LPDA antenna, etc.
12. What is the difference of different indoor antennas?
The right angle antenna is the plug and play antenna, and it does not have
cable, but convenient to install, suitable for the area around 100 square
meters. The indoor ceiling antenna and the indoor wall panel antenna have 5
meters cables, more flexible, 4-6 of these antennas can be connected to one
booster standalone to bring signal around 4-6 rooms, which covers signal around
2000 square meters, especially suitable for the large area such as factory,
company office, multilayer building, etc.
1) Usually we ship item by UPS(UPS surepost service & UPS ground service),
USPS , Fedex within 2 working days after full payment is received(except
weekends and holidays).
2) PO BOX address is not allowed with UPS GROUND SERVICE and Fedex when
parcel is over 2KG.
3) In general，you should receive item within 1-6 working days if not delayed
4) We provide the best shipping service, but if the item is not delivered on
time, please contact us to solve. Hope you do not open case, open the return
request or leave the negative feedback.
Terms of sales
1) All Items have been twice tested before packaging & shipping
2) 30-Day Customer Satisfaction
If you are not satisfied with the products within 30 days, please contact
customer service to get return detail and get a full refund. Buyer is
responsible for the return shipping fee if it is not the reason of quality.
What you need to do about return:
1）When getting boosters, contact customer service directly to solve your
return within 30 days without needing to open return request.
2）Please keep the orignal parcel and whole things new with accessories when
3）Send us the pictures of the your return parcel about goods via
message, which good for us to check.
4）Provide us the shipping tracking NO. after shipping it out soon.
5）We wil refund you full money when we get the parcel and check everything
1) Our system will automatically leave you a positive feedback when you
leave a positive feedback on the store.
2) If you are not satisfied with goods, please do not leave a
neutral/negative feedback, you can write to us immediately to solve the problem.
About Clearing Customs:
According to policies of different countries' customs, goods from China to
your local customs may have tax fee. If need to do customs clearance, you
should cooperate with customs office to pay tax fee. We seller only bear the
responsibility to inform and remind you, we do not bear your tax fee or any
responsibility of shipping delay caused by customs.:)
1) Two-month Free Replacement with the Reason of Quality
2) Free five-year Manufacturer Warranty
Payment We accept only Paypal payment. A none-payment dispute will be opened
if full payment is not received after 4 days of auction. Contact us If you
have any problem with the products, please do not open case, open the return
request or leave the negative feedback, you can just click ”contact” and send
message on the store, we can solve it as soon as possible. Feedback