J3-20DB** dual band inteligent repeater 20dBm power
Overview:
J3-20DB* series Repeater Dual Band Selective offer not only elegant versatile design of appearance but also contribute outstanding performance for indoor coverage problem solution. It amplifies signals between a mobile and a BTS for indoor applications where are located in shadowing areas blocked by obstructions or impediments. Medium Power 2 Band Selective Repeater provides a smart solution for expanding mobile signal coverage in small areas, such as the restaurant, VIP premises, parking lots, basements, offices, etc.
This Repeater has 3 unique functions, the Intelligent Mode, the Silent Mode, and the Self-oscillation Prevention. In general, the Intelligent Mode can automatically reduce interference continuously. The Silent Mode would deactivate the UL PA while no users are accessing the repeater, and no UL noise would be generated towards BTS. The Self-oscillation Prevention function would resolve the repeater from oscillation itself due to insufficient isolation.
This series Repeater Dual Band Selective provides a perfect solution to satisfy operators demands for variable two bands selections of GSM, CDMA, 3G or 4G system and various bandwidths are available as well.
Band selective with Out of Band Gain function will simply enable less noise or suppress interference from operators frequency band.
System status is clearly visible by LED indications and LCD front panel. Repeater configuration and alarm are able to be forwarded to control center for technicians monitoring via OMT / OMC software. With remote monitoring optional feature repeater has embedded modem and battery, so control center will get messages even if electrical network is broken.
The light weight and compact size makes this series repeater ideal for friendly installation with little space.
Repeater fully and completelly complies CE directives.
Work Frequency band (two bands) :
LTE800
GSM900 & EGSM
DCS1800
WCDMA2100
LTE2600
and so on.
Bands selective feature (upon request):
Any two bands combination can be choosed.
Operator can order repeater with any fixed bandwidth 0.2 - 40MHz even more.
Movable central frequency feature (optional) is ordering upon request. Bandwidths are fixed. Installer can move central frequencies independently for both bands, but can't change bandwith.
Adjustable bandwith feature (optional) is ordering upon request. Operator's installer can move frequency and change bandwith of every both bands.
OMT software let's change bandwidth and frequency remotelly if adjustable bandwidth or movable frequency feature is ordered. Repeater must to have embedded wireless modem (optional).
Intelligent mode :
Purpose: after turning on Repeater, you can test whether the isolation between donor antenna and service antenna meet up the repeater working condition. When donor antenna and service antenna isolation does not meet the needs, the repeater will automatic alarm, auto start protection features, at the same time reduce the gain, to meet the current antenna isolation value gain donor antenna and service antenna isolation to meet the repeater work properly.
Donor antenna and service antenna isolation (ISO) ≧ the repeater maximum gain +15dB.
If repeater self testing find that donor antenna and service antenna isolation does not meet the requirements, repeater come up alarm and set both uplink and downlink gain so as to meet the requirements of donor antenna and service antennas isolation.
Alarm LED light on within 1 minute after the repeater turn on, it means antenna isolation alarm.
If Alarm LED light on 1 minute after the repeater turn on, it means the repeater receiving very strong signal from the base station.
Dual Band Selective Repeater
1. Electrical Specification
Uplink
Downlink
2 bands :
Frequency Range
MHz
Band
Model
Customized upon request in the range
LTE-800
J320DBL*
832-862
791-821
EGSM-900
J320DBE*
880-915
925-960
DCS-1800
J320DBD*
1710-1785
1805-1880
WCDMA2100
J320DB*W
1920-1980
2110-2170
LTE-2600
J320DBL*2
2500-2620
2570-2690
Bandwidth
Band selective by operators demand
Various fixed bandwidth upon request
Optional tunable bandwidth
Band & bandwidth
modifications
after installation
Possible
(Optional)
Optional central frequency moving
Optional tunable bandwidth
Output Power
18±2dBm
20±2dBm
Maximum Gain
≧70dB
≧75dB
Manual Gain Control
MGC
31dB / 1dB step
Auto Gain Control
AGC
≧25dB
Maximum input power (non-destructive)
0dBm (CW Signal)
Dual Band Selective Repeater
System
E-GSM 900
WCDMA 2100
Gain Flatness
≦ 4dB (P-P)
≦2dB / 3.84 MHz
Out of Band Gain
±400KHz
<50dB
2.7≦f_offset＜3.5MHz
< 60dB
±600KHz
<40dB
3.5≦f_offset＜7.5MHz
< 45dB
±1MHz
<35dB
7.5≦f_offset＜12.5MHz
< 45dB
±5MHz
<25dB
12.5≦f_offset
< 35dB
Intermodulation Products
9KHz~1GHz
≦-36
dBm
1GHz~12.75GHz
≦-30
dBm
Spurious Emission
9KHz~1GHz
≦-36
dBm
9kHz~150KHz
≦ -36dBm/1 kHz
150kHz~30MHz
≦ -36dBm/10 kHz
30MHz~1GHz
≦ -36dBm/100kHz
1GHz~12.75GHz
≦-30
dBm
1 GHz ~ Flow -10 MHz
≦ -30dBm/1 MHz
Flow-10MHz~Fhigh+10MHz
≦ -15dBm/1 MHz
Fhigh +10MHz~12.75GHz
≦ -30dBm/1 MHz
ACRR
20dBc/30KHz@±5MHz
20dBc/30KHz@±10MHz
Frequency Stability
≦±0.01ppm
Error Vector Magnitude
≦ 12.5%
Peak Code Domain Error
≦-35dB@Spreading Factor 256
Noise Figure
≦ 8dB
VSWR
≦ 2.0
Group Delay
≦ 5μs
Power Consumption
≦25W
Power Supply
External power adapter
Input AC 90~264V
Output DC 5A / 9V
2. Mechanical specification
Dimensions
191 x 296 x76 mm
Weight
≦ 4 Kg
I/O Connector
Impedance
N Female
50Ω
3. Environmental specification
IP Rating
IP40
Operating Temperature
-10℃~50℃
4. Monitoring specification
LED indication
Power LED
DC ON/OFF
Alarm LED
Antenna isolation is lower than the isolation required for equipment installation
GSM, 3G ir 4G kartotuvų - stiprintuvų instaliavimui reikalinga licenzija. Naudojimą privaloma suderinti su mobiliojo tinklo operatoriumi ir gauti oficialų leidimą įrenginio įjungimui į operatoriaus mobilųjį tinklą. Mes įrengsime stiprintuvą legaliai ir suderinsime su transliuotoju.
Antenos
Mobile network repeaters 
