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Waterproof Mobile Signal Repeater For Cell Phone Interference Cancellation System
Description:
The ICS Repeater (Interference Cancellation System) is a new kind
of single-band RF repeater that can automatically detect and cancel
the interference signals caused by oscillation of RF feedback
between the Donor and Coverage Antennas in real time by adopting
DSP (Digital Signal Processing) technology. It can continuously and
stably cancel the interference signals and be adapted to any
changes in the surrounding RF environment (including fixed and
mobile objects).
Like the RF repeater, the ICS Repeater is working as a relay
between the BTS and mobiles. It picks up the signal from the BTS
via the Donor Antenna, linearly amplifies the signal and then
retransmits it via the Coverage Antenna (or the Indoor Signal
Distribution System) to the weak/blind coverage area. And the
mobile signal is also amplified and retransmitted to the BTS via
the opposite direction.
Features:
· Aluminum-alloy casing has high resistance to dust, water and
corroding;
· Highly selective channel selector can process 12 channels
simultaneously;
· Real-time cancellation of interference signal (incl. Multi-path
fading, feedback signal);
· ICS function to prevent self-oscillation, enhance gain and
coverage range, and reduce isolation requirement between donor
antenna and coverage antenna;
· Adopting filter with highly selectivity and low insertion loss
eliminates interference between uplink and downlink;
The built-in wireless modem to communicate with the NMS (Network
Management System) that can remotely supervise repeater's working
status and download operational parameters to the repeater.
The ICS Repeater is mainly applicable to such case:
· The repeater can find an installation place which can receive
pure BTS signal at strong enough level and can meet the requirement
of isolation to avoid self-oscillation;
· And the isolation requirement between the donor and coverage
antennas is hard to meet by using a RF repeater.
·
In comparison with standard RFR (RF Repeater), FSR (frequency shift
repeater) and FOR (fiber optic repeater), the ICS Repeater has the following benefits and disadvantages:
Advantages:
Easy to build the installation site;
Lower cost of equipment and site-building.
Lower maintenance cost (no expense for deteriorating fiber optic
cable);
The Coverage Antenna can face to the same direction of the Donor
Antenna (which can not be realized by RFR).
Disadvantages:
High signal noise may be introduced since the Donor Antenna picks
up signal from the air;
The repeater shall be installed within the coverage of BTS.
Application:
To expand signal coverage or fill signal blind area where signal is
weak or unavailable.
· Outdoor: Airports, tourism regions, golf courses, tunnels,
factories, mining districts, villages, highways
· Indoor: Hotels, exhibition centers, basements, shopping malls,
offices, parking lots.
Working Frequency (customizable) | Uplink | 890 - 915MHz |
Downlink | 935 - 960MHz | |
Working Bandwidth | Customizable | |
Max. Input Level (Non-Destructive) | -10dBm | |
Output Power (customizable) | 43 dBm | |
Gain | ≥ 95dB | |
Gain Adjustment Range | 1~31 dB @ step of 1dB | |
Operating Max. Gain | ≥ Antenna Isolation + 10dB | |
ALC & AGC | Supported | |
Power Amplifier Oscillation Protection | Interference Cancellation System | |
Cancellation Feedback Signals - Max. Sizes of Window | ≥ 6μSec | |
Interference Cancellation Range | ≥ 25dB | |
Error Vector Magnitude (EVM) | ≤ 12.5% | |
Voltage Standing Wave Ratio (VSWR) | < 1.5 | |
Noise Figure | ≤ 5dB | |
In-Band Ripple | ≤ 3dB | |
Frequency Error | ≤ 0.05ppm | |
Spurious Emission | ≤ -36dBm | |
Third-Order Intermodulation | ≤ -45dBc/30KHz(measured under rated output power) | |
System Delay | ≤ 5.0μSec | |
I/O Impedance | 50Ω | |
RF Connector | N-Type (Female) | |
Temperature Range | Operation: -25°C ~ +55°C / Storage: -30°C ~ +60°C | |
Relative Humidity Range | ≤ 95% (non condensing) | |
Power Supply (customizable) | DC 48V / AC 85V - 265V, 45Hz - 65Hz | |
Power Consumption | ≤200W | |
Backup Power Supply (optional) | 4 hours | |
Casing Level | IP65 | |
Dimensions(cm) | 75x50x32 | |
Weight(kg) | ≤ 36 | |
NMS Monitoring Function (optional) | Real-time alarm for door status, temperature, power supply, LNA,
VSWR, self-oscillation, etc. Remote control such as turn on/off, increasing/decreasing output power, etc. Real-time status for output/input power, UL/DL gain, all status of repeater etc. |
Support working frequency:
Frequency Range | Uplink | Downlink |
CDMA 450 | 452.5 - 457.5MHz | 462.5 - 467.5MHz |
LTE700 A/B | 699- 716MHz | 729- 746MHz |
LTE700 C | 777- 787MHz | 746- 756MHz |
LTE700 D | 788- 798MHz | 758- 768MHz |
LTE 800 | 832- 862MHz | 791- 821MHz |
iDEN | 806- 824MHz | 851- 869MHz |
CDMA 800/GSM 850 | 824- 849MHz | 869- 894MHz |
GSM 900 | 890- 915MHz | 935- 960MHz |
EGSM | 880 - 915MHz | 925 - 960MHz |
AWS1700 | 1710- 1755MHz | 2110- 2155MHz |
DCS 1800 | 1710- 1785MHz | 1805- 1880MHz |
PCS 1900 | 1850- 1910MHz | 1930- 1990MHz |
WCDMA/3G 2100 | 1920- 1980MHz | 2110- 2170MHz |
LTE 2600 | 2500- 2570MHz | 2620- 2690MHz |
Application Diagram: