GSM900 High Gain 85dB 30dBm Single Band Mobile Signal Booster Amplifier Repeater with Full Kits

GSM900 High Gain 85dB 30dBm Single Band Mobile Signal Booster Amplifier Repeater with Full Kits System 1

GSM900 High Gain 85dB 30dBm Single Band Mobile Signal Booster Amplifier Repeater with Full Kits System 2

GSM900 High Gain 85dB 30dBm Single Band Mobile Signal Booster Amplifier Repeater with Full Kits System 3

GSM900 High Gain 85dB 30dBm Single Band Mobile Signal Booster Amplifier Repeater with Full Kits

Ref Price:

Loading Port:: Shekou

Payment Terms:: TT OR LC

Min Order Qty:: -

Supply Capability:: 5000 pc/month

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Application:

To expand signal coverage of GSM900 which signal blind areas where signal is weak or unavailable.
A cheap and immediate solution that would allow them have clear phone calls or higher speed broad band.
No more dropped calls ! No more poor reception !
No more runing to the windows or going outside to talk on your mobile phone !
Now you can reach everywhere with signal boosters!

Features:

1. 500~2500square meters indoor coverage.
2. Frequency bandwidth of 900MHZ.
4. Full-duplex mode (improvement of out coming and incoming )signal.
5. Low power consumption and avoid to interference to BTS.
6. LED indicate and judge to signal level of uplink and downlink.
7. Compatibility with CE and RoHS standards .

8. Supports up to (30) users / calls simultaneously.

Specification:

Indoor coverage : 500-2500 m2

Frequency Range :890-915MHz 935-960MHz

Up-link Gain: 80dB

Down-link Gain: 85dB

Output Power UL: 27dBm, DL: 30dBm

Band Flatness: ≤±6

ALC: 31dB @ 0.1dB step

Time Delay: 1 us

Spurious Emission: Out-Band ≤-36dBm

Power Supply: AC110V～220V to DC+5V/2A

Working Temperature: -25 to+55 C

Humidity: 5-95%

Packing:

1. Repeater unit with power supply.

2. High Gain outdoor antenna.

3. Omni indoor antenna.

4. 5m and 15m RF cables.

5. A manual.

Warranty & Return Policy:

1. Warranty covers replacement within 12 months.

2. All returns must have an RMA number before they are returned to us. If product is received without an RMA number
it will not be processed.

3. You must place the item(s) including all accessories to be returned in protective packaging (shipping box) with bubble
wrap and make sure that the item(s) do not shake or rattle. Items that are sent in envelopes and incorrect shipping
containers will be refused and returned at your expense.

4. All unauthorized, no reason, etc. returns are subject to 10% restocking fee.

Q:Who used the WiFi repeater? Is it easy to use?: No repeater is where you WiFi signal is not strong, like the Internet, repeater receive signals and then zoom in, let you before where the signal is not good can do, this is a function of repeater, a bridge router is also the same effect, 2 of the price difference is not much, the function of the router more than a repeater.

Q:Differences between routers and switches and repeaters: Repeater work in the first layer (physical layer), signal amplification and hub function itself in a collision domain, at one time t, only one data packet through.

Q:What is the role of optical repeaters in fiber communications?: Optical signal transmission in optical fiber will have loss and dispersion, and non line letter effect will affect the transmission distance and capacity. The loss will affect the signal amplitude, and the dispersion will lead to fiber bandwidth broadening and error codeIn order to long-distance transmission must join the optical relay system in optical fiber transmission line, transmission loss and dispersion is used to compensate the signal. If not, the signal in long-distance transmission is too small and the occurrence of serious error, the receiver can not successfully received.The high cost of optical relay, optical amplifier after the optical amplifier is generally used instead of optical relay, commonly used Amplifier EDFA and Raman amplifier (EDFA), also have the dispersion compensation of dispersion compensation amplifier new.

Q:What does the subway rep repeater mean?: Increases the maximum number of nodes.Each segment can use different communication rates.Improved reliability. When a network fails, it usually affects individual segments only.Performance has been improved.The disadvantage is that the relay increases the delay when the received signal is restored (restored) to the state at the time of transmission.The MAC sublayer of the CAN bus does not have the flow control function. When the load on the network is very heavy, it is possible to overflow due to insufficient storage space in the buffer in the repeater, resulting in frame loss.If a repeater fails, it will have an impact on the work of the two adjacent subnets.

Q:How do I modify the WiFi repeater password?: Knowing that the WiFi password can only connect to the router does not necessarily make you enter the router settings.

Q:Japanese fire automatic alarm system. How can I dial the repeater?: Fire control module is also called input and output module, which is an important part of fire fighting linkage control system. It is used in automatic fire alarm system to connect smoke exhaust valve, air supply valve, fire damper and so on. The module has a pair of normally open and normally closed contacts. The external contacts of the module are connected with the external circuit to realize the linkage control of the external equipment. Domestic fire alarm manufacturers are numerous, here introduces several input and output modules.

Q:The use of Axure RP repeaters: As long as you find the WiFi list, the connection is fine. The principle is that they will relay transmit a signal, when you connect the log switch relay mode (some repeaters used to relay more than) you can find yourself in the emission signal routing in the WiFi list, after the connection (to be renamed) to achieve the forwarding of the original signal, so as to realize the expansion of a signal enhancement objective.

Q:What are the functions of repeaters and what are their characteristics and disadvantages?: Intermediate relay relay electrical signal, usually have normally closed, normally open each four pairs of contacts, the coil was attracted by electricity, often open on the closed, often closed off! Features are flexible, easy handling, reducing a lot of switches, lack of wiring trouble,

Q:The greater the power, the better the ability of the WiFi repeater to receive the signal?: The greater the emission power, the greater the radio emission or radiation energy, the stronger the electromagnetic induction intensity, so the farther the communication distance; the receiver capacity, usually the sensitivity of the receiver.

Q:How does ZigBee implement the routing relay function?: In principle, the routing function dynamically maintains a routing table. Due to the limited application of Zigbee and limited resources, it is impossible to maintain a large table. Therefore, when needed, the node sends routing information requests and establishes routes. For specific implementations, you need to refer to protocol specifications, or use the protocol stack provided by the chip vendor.

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