Active Member
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[China]
Contact name:Albert
Shenzhen Greetwin Technology Co.,Limited |
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23dBm EGSM 900 / 1800 / 2100 Cell Phone Signal Boosters with Digital Technology
Model. GW-23DR-EDW
Cell Phone Signal Booster Description:
Greetwin GW-23DR-EDW model is a tri band digital repeater supporting EGSM 900 / DCS 1800 / WCDMA 2100 MHz with 23dBm per band and has software-defined filtering for up to 4 sub-bands per band. Individual gain and ALC settings allow for homogeneous coverage and oscillation prevention.
Each sub-band can work independently without any influence with each other. It’s designed to support one mobile system and help mobile operators to amplify their own mobile signals. It supports to adjust the sub-band and the channels by software to adapt to the operators’ requirement s without any change on the hardware. The repeater is also equipped with OMT / OMC remote control and monitoring system allowing to configure and control the device operation remotely via PC or wireless modem (optional function). The built-in backup battery will ensure the operation of the device even with a sudden power failure (optional function).
Cell Phone Signal Booster Features:
1. Stably working,low power consumption,fit in with industry standard
2. Digital technology, many SAW filters ensures enough output level and out-band suppression.
3. High isolation,strong compatibility,convection cooling,light weight, convenient installation.
4. Local RJ45 monitoring and remote monitoring conform to communication monitoring protocol standard, which is convenient for engineering commissioning and maintenance.
Equipment Compoments:
Digital repeaters main compoments as follows:
| Copoments | Specifications | Quantity | Unit | Remarks |
| Main Master | NXWXSB201821230111 | 1 | Piece | |
| Network Line | 1M*R45 | 1 | Piece | |
| Ground Wire | 1.5mm² | 1.5 | Meter | Ended with metal sheet |
| Expansion screw | M4*100mm | 4 | Piece | |
| Mounting bracket | / | 2 | Piece | |
| Mounting bracket screw | M6*14mm | 4 | Piece | |
| Whip Antenna | 800~2700MHz | 1 | Piece | Used for Modem |
Cell Phone Signal Booster Working Principle:
The principle of Digital Band Selective Repeater is the downlink signal received by the Donor Antenna of the base station shall be sent to a band selective filter via duplexer to be filtered and to be amplified by the downlink band selective amplifier to a proper level. The Coverage Antenna via a duplexer shall emit the downlink signal. Similarly, the signal received by the Re-transmission Antenna shall have its level adjusted to a regulated level by a uplink band selective amplifier after it is filtered. The Donor Antenna will emit it after it is filtered and sent to the duplexer.
Panel interface description:
| No. | Items | Description |
| 1 | Baffle | Open it, SIM card socket and RJ45 interface inside |
| 2 | MODEM | SMA-female jack, connect to a whip antenna with SMA-male jack |
| 3 | RUN | Power indicator |
| 4 | ANT | Indoor service antenna, SMA-female jack |
| 5 | BTS | Outdoor donor antenna, SMA-female jack |
| 6 | GND | Equipment grounding |
| 7 | AC | Power Supply: AC 220V |
Cell Phone Signal Booster Specifications:
| Options | Uplink | Downlink | |||
| Frequency range | EGSM900 | 880-915MHz | 925-960MHz | ||
| GSM1800 | 1710-1785MHz | 1805-1880MHz | |||
| 3G 2100 | 1920-1980MHz | 2110-2170MHz | |||
| Bandwidth | EGSM900 | 4 sub-bands, each 0.2 ~ 10MHz, adjustable and adjustable within the 900 MHz frequency range | |||
| GSM1800 | 3 sub-bands, each 0.2 ~ 20MHz, configurable and adjustable within the frequency range of 1800 MHz in 0.2 MHz increments | ||||
| 3G 2100 | 4 subranges, each 0.2 ~ 15 MHz, adjustable and adjustable within the frequency range of 2000 MHz in 0.2 MHz steps | ||||
| Max. gain | 70±2dB | 75±2dB | |||
| Max output power | 20±2dBm | 23±2dBm | |||
| Manual gain control (step down) | ≥31dB/1dB step | ||||
| 1-10dB | ︱△︱≤1.0dB | ||||
| 11-20dB | ︱△︱≤1.5dB | ||||
| 21-30dB | ︱△︱≤2.0dB | ||||
| VSWR | entrance | ≤ 2.3 | |||
| exit | ≤ 2.3 | ||||
| Noise factor | standard ≤ 8dB, Max. ≤ 9dB | ||||
| Group delay | ≤ 7us | ||||
| Frequency Error | EGSM900/GSM1800 | ≤ 0.05 ppm 3GPP TS 51.026 (V 13.0.0 ) | |||
| Frequency stability | 3G 2100 | ± 0,01 ppm 3GPP TS 25.143 ( V 13.0.0 ) | |||
| Function Elements | |||||
| Moving strip | EGSM900 | The frequency subbands can be mobile within the range of 35MHz | |||
| GSM1800 | The frequency subbands can be mobile within the range of 75MHz | ||||
| 3G 2100 | The frequency subbands can be mobile within the range of 60MHz | ||||
| Adjustable bandwidth | EGSM900 | The frequency subbands can be tuned from 0.2 MHz to the maximum 10 MHz | |||
| GSM1800 | The frequency subbands can be tuned from 0.2 MHz to a maximum of 20 MHz | ||||
| 3G 2100 | The frequency subbands can be tuned from 0.2 MHz to a maximum of 15 MHz | ||||
| LED system indicators | ALC is not active | --- | Green | ||
| ALC active <45dB | --- | Flashing green 1 time / 3 seconds | |||
| ALC active ≥ 45dB | --- | Flashing green 1 time / 1 second | |||
| ALC active (51dB) ends | --- | Blinks red 1 time / 1 second | |||
| LED control indicators |
Start indicator | The monitoring module is working correctly | Flashing green 1 time / 1 second | ||
| The monitoring module does not work correctly | Off | ||||
Indicator modem | SIM card not inserted | Off | |||
| SIM card inserted, but no signal | Red | ||||
| SMS communication mode | Flashing green 1 time / 1 second | ||||
| GPRS communication mode | Blinking green 2 times / 1 second | ||||
| GPRS communication error | Blinks red 1 time / 1 second | ||||
Alarm indicator | No alarm items | Green | |||
| There are elements of anxiety | Red | ||||
| DC Failure | Off | ||||
| Mechanical parameters | |||||
| Connectors | N-Female | ||||
| Dimensions | 460mm(exclude connector 20mm)*200mm*80mm | ||||
| The weight | 9.1KG (with packing box, 10.72KG) | ||||
| Type of instalation | Wall Mount | ||||
| Grounding | External ground (housing) | ||||
| Electrical parameters | |||||
| Source of power | Incoming AC 100 ~ 240V, 50 ~ 60Hz, outgoing DC12V / 7A | ||||
| Power Consumption | 55W | ||||
| Input and output impedance | 50 Ohm | ||||
| Environmental parameter | |||||
| Working temperature | -25℃ ~ +55℃ | ||||
| Environmental conditions | IP40 | ||||
| Software | |||||
| Local monitoring | PC via Ethernet port | ||||
| Remote monitoring | via SMS or GPRS (additional function) | ||||
| Controlled parameters | Gain, Frequency, Repeater On / Off, Alarm | ||||
| Monitoring parameters | Gain, frequency, repeater on / off, alarm message | ||||
| Alarm | Repeater failure, power failure, ALC alarm (signal gain level), etc. | ||||
FAQ:
1. After installing booster signal not be very good, indoor signal
coverage very small ?
> Adjust outdoor antenna's location and direction
> Change another high gain outdoor antenna
> Check whether cables are connected well
> Change more powerful repeater
2. Cell phone signal full bar, but communication quality bad ?
> Much closer distance between indoor and outdoor antenna,
separate them with a longer distance.
3. After installing booster not only signal be good, but also more
bad ?
> Much closer distance between indoor and outdoor antenna,
separate them with a longer distance.
4. Working good for long time, suddenly signal bad ?
> Check whether outdoor cable connectors are flooded
> Check whether power light is working normally
> If cables are not flooded and power light is working normally,
the booster should has problems and need to be sent back to factory
for repair.
Cell Phone Signal Booster Application:
Cell Phone Signal Booster Installation:
The booster is fixed onto the wall through expansion bolts.
A. Drill holes on the targeted place and install expansion bolts.
B. Align the holes with the expansion bolts, place flat washers,
spring washers, and nuts in turn, and tighten the nuts to fasten
the installing support.
C. Place the booster on and fasten it.
D. Connect cables and power cables to the booster respectively.
E. After installing the booster as described above, power on the
booster to check the operation status.
Cell Phone Signal Booster Connection:
A. BTS Port: donor antenna cable is connected with Outdoor Port;
B. MS Port: service whip antenna is connected with Indoor Port;
C. DC IN: connected with Power adaptor.
Our Workshop:
Our Company:
Greetwin Tech is a strong and reliable factory, focusing on the R&D and Manufacturing of Digital ICS Repeater, RF Repeater, Indoor Signal Distribution System, Trunk Amplifier, Band Selective Repeater for more than 10 years.
