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Wireless gsm repeater 900 1800 dual band signal booster mobile network solution Cell Signal Amplifier Receivers with CE and Rohs



1,We are factory direct sales. We promise,we accept return or change goods if our products have any quality problem.

Please rest assured purchase, you don’t need to worry about the quality problem.

2,When you order it,please be sure to pay attention to the frequency.
It will be need the buyer to take responsibility if buy wrong frequency cause the repeater can not work well.

gsm repeatergsm repeater 900 1800

gsm amplifier 900 1800 JR-LCD-GD27

Electrical Specification gsm amplifier 900 1800

GSM:  UL:890~915  MHz    

DCS:  UL: 1710-1785 MHz  

DL: 935~960 MHz 

DL: 1805-1880MHz

gain(dB) 70 75
Band flatness(dB)  less than 3
Output Power(dBm) 23 27
ALC 31
VSWR less than 2.5
Group delay(uS) less than 1
Impedance 50ohm
Working tempreture  -25~+55 degree
Mechanical Specification for gsm amplifier 900 1800
Connector type N-Female
Working voltage AC110V~220V to DC+5V/1A
Size(mm) 280*182*18
Packing Size(mm) 320*220*60
Net Weight(Kg) 01.5KG
MTBF 50000hours
Installation Type Wall Installation
Waterproof Rate IP40

gsm repeaeter 900 1800 (46)

* 1 piece of dual band900/1800mhz Signal Repeater
* 1 piece of Outdoor Antenna
* 1 piece of Ceiling Indoor Antenna
* 1 piece of Charger ( Please Inform The Plug Type: EU / EK / US / AU )
* 1 piece of Outdoor Cable with about 10 Meters

gsm repeaeter 900 1800 (9)

gsm repeater 900 1800 (33)gsm repeater 900 1800 (18)gsm repeater 900 1800 (22)gsm repeater 900 1800 (25)gsm repeater 900 1800 (27)gsm repeater 900 1800 (42)gsm repeater 900 1800 (10)gsm repeater 900 1800 (14)gsm repeater 900 1800 (16)Why we should buy cellular mobile signal booster ?


Cell phone becomes especially helpful when people get into critical situations. In case of emergency a timely call can save somebody’s life.

Unfortunately, there are still some places where one can find themselves “out of coverage”. 

Usually those places are either too far from the cell phone base station or located inside underground constructions, for example:

  • Parking lots, tunnels
  • Big stores, office buildings
  • Cars, boats etc.
  • House in remote areas etc

How is the cellular mobile signal booster works?


 •The outside antenna catches the low signal from the mobile base station and delivers it to the cell phone 


amplifier through the connection cable (coax).


•After the signal is accepted by the phone amplifier, the device amplifies it.


•Then this amplified signal goes through the connection cable (coax) to the inside antenna.


•And after that, the amplified signal transmits to the cell phone.

gsm repeaeter 900 1800 (5)gsm repeater 900 1800

Installation for cellular mobile signal booster :

Step 1 Start by taking your phone up to the roof or other location outside to find where the signal is strongest.

Step 2 Temporarily mount the Outdoor (outside) antenna in that location. You may need to adjust and move the antenna later.

Step 3 Run coaxial cable into the building to a convenient loaction (attic, etc.) where you can also get standard power for the Signal Repeater.

Step 4 Place the Signal Repeater in that location and connect the coaxial cable to the Outdoor Side of the Signal Repeater and the Outdoor antenna.

Step 5 Mount your Indoor (inside) antenna in a productive location. You may need to adjust or move the antenna later. More notes on Indoor antennas and patterns here.

Step 6 Connect coaxial cable between the Indoor antenna and the Signal Repeater output port.

Step 7 Power up the system and check for signal inside the building. If needed, tune system by moving and or pointing the Outdoor and Indoor antennas until they get the most signal possible.

Step 8 Secure all antennas and cables, securely mount the Signal repeater and clean up the installation.

Of course there are still a few more things to consider but in general, this is the basic procedure. For more information, please contact us.gsm repeaeter 900 1800 (45)gsm repeaeter 900 1800 (2)gsm repeaeter 900 1800 (8)gsm repeaeter 900 1800 (1)gsm repeaeter 900 1800 (7)

FAQ Solutions
After installed mobile signal booster 
not be very good,indoor signal coverage 
very small
1.Adjust outdoor antenna’s location and direction.
2.Check whether cable connected well.
3.Put more higher receiving antenna’s position,
which can received more good signal.
4.Change another bigger power mobile signal  booster. 
5.Change another high gain receiving antennna.
Cellphone signal full bar,
but communication quality bad.
Too closer distance of indoor and outdoor antenna,
need more separation far distance away between antennas.
After installed mobile signal booster 
not only signal be good,but also more bad.
Too closer distance of indoor and outdoor antenna,
need more separation far distance away between antennas.
Mobile signal booster 
works good for long time,suddenly signal bad.
1.Check outdoor cable connectors 
whether flooding water.
2.Check power lights on mobile signal booster 
whether working normal.
3.If cable not flooding water and power lights 
working normal then the mobile signal booster 
could be problem need send back factory repair.

gsm repeaeter 900 1800 (4)





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We are proud to offer international shipping services that currently operate in over 200 countries and islands world wide. Nothing means more to us than bringing our customers great value and service. We will continue to grow to meet the needs of all our customers, delivering a service beyond all expectation anywhere in the world.

How do you ship packages?

Packages from our warehouse in China will be shipped by ePacket or EMS depending on the weight and size of the product. Packages shipped from our US warehouse are shipped through USPS.

Do you ship worldwide?

Yes. We provide free shipping to over 200 countries around the world. However, there are some locations we are unable to ship to. If you happen to be located in one of those countries we will contact you.

What about customs?

We are not responsible for any custom fees once the items have shipped. By purchasing our products, you consent that one or more packages may be shipped to you and may get custom fees when they arrive to your country.

How long does shipping take?

Shipping time varies by location. These are our estimates:
Location *Estimated Shipping Time
United States 10-20 Business days
Canada, Europe 10-20 Business days
Australia, New Zealand 10-30 Business days
Central & South America 15-30 Business days
Asia 10-20 Business days
Africa 15-45 Business days
*This doesn’t include our 2-5 day processing time.

Do you provide tracking information?

Yes, you will receive an email once your order ships that contains your tracking information. If you haven’t received tracking info within 5 days, please contact us.

My tracking says “no information available at the moment”.

For some shipping companies, it takes 2-5 business days for the tracking information to update on the system. If your order was placed more than 5 business days ago and there is still no information on your tracking number, please contact us.

Will my items be sent in one package?

For logistical reasons, items in the same purchase will sometimes be sent in separate packages, even if you've specified combined shipping.

If you have any other questions, please contact us and we will do our best to help you out.


Order cancellation

All orders can be cancelled until they are shipped. If your order has been paid and you need to make a change or cancel an order, you must contact us within 12 hours. Once the packaging and shipping process has started, it can no longer be cancelled.


Your satisfaction is our #1 priority. Therefore, if you’d like a refund you can request one no matter the reason.

If you did not receive the product within the guaranteed time( 45 days not including 2-5 day processing) you can request a refund or a reshipment.

If you received the wrong item you can request a refund or a reshipment.

If you do not want the product you’ve received you may request a refund but you must return the item at your expense and the item must be unused.

  • Your order did not arrive due to factors within your control (i.e. providing the wrong shipping address)
  • Your order did not arrive due to exceptional circumstances outside the control of jumayo (i.e. not cleared by customs, delayed by a natural disaster).
  • Other exceptional circumstances outside the control of jumayo.com

*You can submit refund requests within 15 days after the guaranteed period for delivery (45 days) has expired. You can do it by sending a message on Contact Us page

If you are approved for a refund, then your refund will be processed, and a credit will automatically be applied to your credit card or original method of payment, within 14 days.


If for any reason you would like to exchange your product, perhaps for a different size in clothing. You must contact us first and we will guide you through the steps.

Please do not send your purchase back to us unless we authorise you to do so.

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