GSM900Mhz 2g Cellphone Signal Repeater Booster Full Kits

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Product Description:





Application photoApplication:
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. 300~1500 square 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 : 300-1500 m2
Frequency Range :890-915MHz  935-960MHz
Up-link Gain: 60dB
Down-link Gain: 65dB
Output Power UL: 20dBm, DL: 20dBm
Band Flatness: ≤±6
ALC: 31dB @ 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. Fiberglass outdoor antenna.(    Optional)
3. Panel indoor antenna.(Optional)
4. 5m and 15m RF cables.(Optional)
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.


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Q:How does the tplink wireless router set up a relay?
Sub router and main router login, IP in the same network segment must close the former DHCP service, in different network segments must open the former DHCP services.
Q:What's the 485 repeater for?
485 repeater product features:In the 485 bus, if the 485 transmission line reaches a certain distance and is in a complex external environment, it is vulnerable to external interference such as electromagnetic interference in the external environment. Efficient lightning protection devices in repeaters can effectively suppress lightning (Lightning) and ESD., and provide lightning surge protection power per line of 600W. It can absorb external interference such as electromagnetic induction in external environment. Thus, the stability of the 485 bus is protected.
Q:In the fire alarm system, when will the relay module be used?
The relay module of different manufacturers of different types of the role is not the same, generally matching the passive contact device constitutes an alarm point (that give an address address encoding equipment, alarm system based on host is through the electrical signal alarm received to control alarm equipment) multi line relay the module is used to control the fire pump, fan and other important equipment, and do the parallel that is used in parallel with a plurality of address free equipment to give these equipment the same address is the address of the module. The above is the common different types of relay module of several functions, the specific role depends on what model, what manufacturers.
Q:What is the difference between relay and bridge?
Relay mode is the use of a wireless connection between the wireless router, wireless signal transmission from one point to the next relay relay, the signal is enhanced, and the formation of new wireless coverage area, to extend the coverage of wireless network to. In fact, as long as there are two relay enabled wireless router, you can expand the network coverage.
Q:How can there be a walkie talkie in the absence of walkie talkies and repeaters? 30KM. My friend succeeded and didn't know how to set it up.
This has nothing to do with setting up, I just do walkie talkie research and development, this may be a little doubt.
Q:Repeaters, hubs, two - layer switches, three - layer switches and routers work on the OSI reference model layer
Repeaters and hubs are first - tier physical layers that work as the OSI reference modelThe two layer switch operates on the second layer of the OSI reference model data link layerThree - layer switches and routers operate on the third - layer network layer of the OSI reference model
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:How does ZigBee implement the routing relay function?
If you need to know is with their development, the need to be familiar with ZigBee protocol stack, this time, now a lot of ZigBee transmission module with the route relay function, for example of this kind of ZM5168 module, routing functions are very easy to use.
Q:Can wireless extension repeaters be designed to hide? How to set up the TP-LINK brand?
Setting method: there are two ways to set up, one is through the WPS one button setting, one is if there is no WPS key, enter the interface debugging.
Q:WiFi repeater setting issues
You should enter the MAC address of each other on the router and repeater, so that the wireless relay can be carried out effectively.

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