J3I-DB Dual Band 20~27dBm Medium Power Industrial Repeater

J3I-DB 20~23dBm  dual band selecitve repeater are specifically designed for cellular operators who wants to support two systems at the same time.

1.It is a traditional repeater with RF N female connectors, mostly used in indoor distribution system to be connected wiht more than one antenna for optimal coverage.

2.They have below recommended coverage sizes:1) J3I-DB-20: 500~1000 squae meters. 2). J3I-DB-23: 1000~1500 Sqm. 3). J3I-DB-27: 1500~2500 Sqm.

3.Dual band selective repeater design to support any two relevant systems of GSM850,GSM900,DCS, PCS; CDMA450, CDMA800,CDMA1900,WCDMA2100 and AWS, it can affectively increase the acceptance willingness of the property owners as it is elegant looking and more convenient to install.

4.Intermediate SAW filter technology for very sharp out of band rejection to amplify only specific operators’s signals and reject all the others.

5.Manual gain control (MGC) available for both uplink and downlink to adjust the gain value for proper coverage during installation or maintance.

6.To maintain safe and specific output signal levels and give alarms on self-oscillation, the repeater has built-in AGC and ALC circuits, which can automatically control the gain of the repeater depending upon the strength of input signals.

7.Auto shut off design available for both uplink and downlink to avoid serious interference to network effectively when the repeater is in deep self-oscillation of very strong input power.

8.The repeater can be locally and remotely monitored and controlled through its integrated software circuit, remote control software of both local NMS and NMS in Server. NMS can be connected with its upper level software throught SNMP. (Optional).



J3I-DB Dual Band 20~27dBm Medium Power  Industrial Repeater
Product Features
1 1. Compact size with stable performance.
2 2. Support antenna isolation detection.
3 3. Designed for indoor application.
4  4. Automatic gain control and manual gain control.
5 5. Intelligent mode setting, automatically set the values.
6 6. Auto shut off function available to avoid the damage and interference in unusual signal conditions.
7 7. Easy installation & maintenance.
8 8. Extend cell phone battery life.
Product Number  Dual System/Band Combine Model No. J3I-EGSM/WCDMA/DCS/LTE-20/23/25
Frequency range (Available) CDMA800(824-849/869-894)/CDMA1900(1850-1910/1930-1990)/EGSM900(880-915/925-960)DCS1800(1710-1785/1805-1880) WCDMA(1920-1980/2110-2170) PCS(1850-1910/1930-1990) /TDD2300(2320-2370)/TDD2500
Max. Gain 75db/80dB
Max. Output Power 20dBm/23dBm/25dBm
AGC control range ≥25dB
In-band Ripple ≤6dB
Max. Input Power Without Damage ≤0dBm
Noise Figure ≤ 6dB
Group delay time ≤ 5μs
VSWR ≤ 2.0
Third-order Inter-Modulation ≤-40dBc Max
Spurious Emission 9kHz~1GHz: ≤ -36dBm/30kHz 1GHz~12.75GHz:≤-30dBm/30kHz
Power Consumption ≤ 60 W
Power Supply Input AC100~ 240V, Output DC 9V/7A (CE Approved)
Alarm Monitoring System Alarm for uplink self-oscillation
Indication LED Power supply, AGC, Isolation
Operating temperature -10 ~ +50 °C
Application Indoor(IP30)
Mechanical Specifications
Connectors type N- Female
Weight 10 kg
Dimensions(without connectors) 350*270*140mm
Signalwing Corporation
Address:Building C4, Zone C, Fuhai International Science and Technology Park, Zhancheng Community, Fuhai Street, Baoan District, Shenzhen 518103