Specialize in Signal Repeater & Jammer R&D and manufacturing since 2006
AMPLITEC 23dBm Dual Band Digital Fiber Optical Repater O23J-BxBx Low loss
* Digital RF and light processing.
* Uplink Noise Suppression.
* Supports optical bypass and optical delay calibration function.
* Auto Level Control to limit the output power to ensure safe and stable coverage.
* By RJ45 connects OMT for local control.
* MTBF >100,000 hours.
Amplitec O23J series digital fiber optical repeater adopts software radio technology. The main unit performs frequency conversion processing after receiving downlink signal from the donor antenna, and converts it into an I/Q signal, which is converted into a digital signal by ADC and then sent to the remote unit through optical fiber. the remote unit recovers the received digital signal and converts it into an analog signal through the DAC, then converts the frequency to the radio frequency, and transmits it through the service antenna; the remote unit sends the received uplink signal of the mobile phone to the base station through the above reverse process.
The O23J MU (main unit) has 4 FC optical ports, which can be connected to 2 RU(remote unit). The RU is also equipped with 2 FC optical ports, which supports parallel or series connection of multiple RU. The transmission distance between the MU and the RU is up to 15km, which is suitable for 2G 3G 4G signal coverage in villages, tunnels, mines and other places.
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Item |
Up Link |
Down Link |
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Frequency |
Band 1 |
1920 ~ 1980 MHz |
2110 ~ 2170 MHz |
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Band 3 |
1710 ~ 1785 MHz |
1805 ~ 1880 MHz |
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Sub-bands |
Band 1 |
1~3 Can be set |
1~3 Can be set |
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Band 3 |
1~3 Can be set |
1~3 Can be set |
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Operating Bandwidth |
Band 1 |
5/10/15/20MHz Adjustable |
5/10/15/20MHz Adjustable |
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Band 3 |
5/10/15/20MHz Adjustable |
5/10/15/20MHz Adjustable |
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Output Power |
20±2dBm @ MU |
23±2dBm @ RU |
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Gain |
80±3dB @ MU+RU |
80±3dB @ MU+RU |
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Gain adjustment range |
ATT step of 1 dB in 31 dB |
ATT step of 1 dB in 31 dB |
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ALC control range |
≥ 20 dB |
≥ 20 dB |
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Ripple |
≤6 dB |
≤6 dB |
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VSWR |
≤1.8 |
≤1.8 |
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Max. Input Power without Damage |
0dBm |
0dBm |
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Out of Band Gain |
Comply 3GPP 36.106 Chapter 9（Cat B） |
Comply 3GPP 36.106 Chapter 9（Cat B） |
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EVM |
Meet 3GPP standards |
Meet 3GPP standards |
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ACPR |
20dBc@±5MHz/10MHz |
33dBc@±5MHz/10MHz |
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Spurious Emission |
9KHz~1GHz |
≤-36dBm |
≤-36dBm |
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1GHz~12.75GHz |
≤-30dBm |
≤-30dBm |
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Noise Figure |
≤6 dB |
≤6 dB |
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Time Delay |
≤9μs |
≤9μs |
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Optical transmit power |
≥-2dBm |
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Optical receive sensitivity |
≤-15dBm |
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Optical transmission distance |
≤15 KM |
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optical interface |
FC/FC |
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Local monitoring |
PC software via RJ45 |
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Power Supply |
AC 110 or 220, 50/60Hz |
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Power Consumption |
<45W @ MU / <50W @ RU |
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RF Connector |
N-Female |
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Protection Grade |
IP65 |
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Working Temperature |
-30℃ ~ +60℃ |
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Dimension |
380*280*100mm @MU / 380*280*100 @RU |
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Weight |
<9.5kg @MU / <11kg @RU |
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Useful Links
Tel: +86-757-83308238,13715513766
E-mail: info@amplitec.cn
Address: 4th Floor, 4th Building, No. 60 of the Langbao West Road, Chancheng District, Foshan City, Guangdong, China. 528000