Overview:
J3-20TB* series Repeater Triple 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 3 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 TriplelBand Selective provides a perfect solution to satisfy operators demands for variable 3 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 (3 bands) :
- LTE800
- GSM900 & EGSM
- DCS1800
- WCDMA2100
- LTE2600
- and so on.
Bands selective feature (upon request):
-
Any 3 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 all 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 3 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.
Triple Band Selective Repeater |
1. Electrical Specification |
Uplink |
Downlink |
3 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) |
Triple 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 |
320 x 296 x76 mm |
Weight |
≦ 7.5 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 |
Or ALC1~5dB, Red |
5. Special features
Cost-effective for practical solutions
|
1 |
Antenna isolation detection |
2 |
Automatic gain control |
3 |
Intelligent mode setting |
4 |
Support MGC |
5 |
Prevent the oscillation |
7 |
Uplink sleep mode |
7. Optional
local and remote control |
Local Monitoring |
USB Port |
Remote Monitoring |
Wireless modem SMS service |
OMT software |
Free of Charge | |