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Overview:
Operation with repeater:
In the practical application, some sites are far from the base station. The input power of the repeater is weaker than the normal power level, and the repeater couldnt reach its full output power for a much larger coverage size. Then the pre-amplifier could be utilized to boost the input signals to reasonable level, so that the repeater can work with full output power for ideal coverage.
As we know, some pico repeaters only get 5~15dBm in UL and in some remote area the uplink mobile signal wouldnt be strong enough to go back. Thats why the phone calls cant be initiated even if we can see full bar signals on the mobile phone.
However, we can enhance uplink signal up to 20dBm by adding a pre-amplifier before the repeater. And then the uplink signal can reach base station, and we have a good call in this practical application.
Preamplifier can be used also in low signal environment for 4G / 3G routers and modems.
Available single band, dual band, triband, 4 band and 5 band preamplifier models.
Work Frequency bands optional by order :
- LTE800
- GSM900 & EGSM
- DCS1800
- LTE1800
- WCDMA
- UMTS2100
- LTE2100
- LTE2600
- and so on.
Features:
1. Elegant and compact design.
2. Built-in AGC and ALC circuits, which can automatically control the gain of the repeater depending upon the strength of input signals.
3. Light weight, small volume, simple and convenient installation design.
Electrical specifications:
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Specifications |
Model |
Uplink |
Downlink |
|
Frequency range MHz |
LTE800 |
C |
832 - 862 |
791 - 821 |
|
GSM |
G |
890 - 915 |
935 - 960 |
|
EGSM |
E |
880 - 915 |
925 - 960 |
|
DCS |
D |
1710 - 1785 |
1805 - 1880 |
|
WCDMA |
W |
1920 - 1980 |
2110 - 2170 |
|
LTE2600 |
L |
2500 - 2620 |
2570 - 2690 |
|
Optional |
Customized upon request |
|
Max .Gain |
≥ 20dB |
≥ 20dB |
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Max .Output Power |
≥ 20dBm |
≥ 0dBm |
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Band width (-3dB) |
Wide Band |
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ALC |
≥ 20dB |
---- |
|
Noise Figure |
---- |
≤6dB |
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VSWR |
≤1.8 |
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Group Delay |
≤1.5μs |
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LED Alarm |
Standard |
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I /O Port |
Impedance |
N-Female |
50 ohm |
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Power LED |
ALC LED |
Green light |
Orange @ ALC 10dB |
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Operating Temperature |
-25ºC ~ +55ºC |
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Environment Conditions |
IP40 |
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Dimensions * |
Weight |
135×125×36mm |
≤ 0.8Kg |
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Power Supply * |
Input AC100~240V |
Output DC9V/3A |
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* Dimensions, weight and power supply specifications marked for single band amplifier. |
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* For dual band, triband, 4 or 5 band preamplifiers these data are higher. |
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Note:
Dual band model includes two bands.
For example SY-EW-20-P Uplink is 880
915+1920
1980MHz as Downlink is 925
960+2110
2170MHz
Triband model includes three bands.
For example SY-EDW-20-P Uplink is 880
915+1710...1785+1920
1980MHz as Downlink is 925
960+1805...1880+2110
2170MHz
Four and five band models also includes required 4 or 5 bands. |
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Antenos
Mobile network repeaters 
