GSM900 Signal Band Mobile Signal Booster Amplifier Repeater

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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!
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.
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%
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:

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:What level of work does the OSI seven - layer structure work with, hubs, switches, routers?
The router only forwards packets of a specific address, does not transmit packets that do not support routing protocols, and transmits unknown packets of network data, thereby preventing broadcast storms.Switches are generally used for LAN-WAN connections, switches to bridges, data link layer equipment, and some switches can also achieve third layers of switching. Routers are used for connections between WAN-WAN, which can solve packet forwarding between peers and act on the network layer. They simply accept input packets from a line and forward them to another line. The two lines may fall into different networks and adopt different protocols.
Q:WIFI how does the repeater amplify the amplified signal?
If the intermediate relay equipment increase the routing function, and the upper device is not in the same broadcast domain, then it can not be called relay, although they play the role of increasing the distance, but it is rigorous added a wireless router, and can not be said to be a relay, the user can feel the IP address is changed, the SSID name and password for wireless contact also changed.
Q:How can wireless AP (trunking) be used to connect wireless routers that shut down SSID broadcasts?
Wireless networks with SSID broadcasts have been closed, that is, wireless network names are hidden. Wireless Internet devices are unable to find the wireless network.
Q:After wireless relay, network speed is slow, bandwidth is reduced, how to solve?
This is normal. After the relay, the bandwidth is halved.The repeater must receive and forward frames on the same channel, which means that your bandwidth is actually split in two. Although the scope is more important than bandwidth, the rate of transmission over the remote client will be as low as 1Mbps.
Q:Why can't the phone be found in the WiFi network that is set up by the computer? Network attributes can be seen, how should we correct?
When setting up the relay AP, you need to check that the name is the same, so it's better to have a different name! There is the relay when the channel is consistent, inconsistent, you can not successfully relay, and there is too far away from the route is too far away, and still can not receive
Q:Why is a wireless router sent by telecommunication disconnected from the network?
In the secondary router, enter the MAC address of the main router, and set a blocked segment to turn off the dhcp.
Q:Routers, repeaters, two computers are connected, and how to form a LAN
Routers do not have special settings (but to open the DHCP service), and the repeater uses the AP mode (to turn off the DHCP service and modify the repeater LAN address with the same network segment of the router, but not IP).If wireless, it's simplerRouters do not have special settings (but to open the DHCP service), and the repeater relays the signal to the main router via the wireless signal in the relay mode, and forwards the signal.
Q:Repeater! Plug in, mobile phone search can not signal why?
Next is whether or not you are connected to the repeater networkFinally, check to see if your repeater is working properly. Normally, two lights are onNot really. You can choose to reset it and change it to another place
Q:What is the function of the repeater in the automatic alarm?
Line repeater, which can be powered by an external power supply, preferably with batteries. Generally not connected from the host.
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.

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