Multi Mode Repeater CCDM400
1. Main Features
ü Superior RF performance, high efficiency
ü High Gain (up to 90dB) and low noise
ü Support LTE bandwidth adjustable (1.4MHz/5MHz/10MHz/15MHz/20MHz)
ü Support TETRA system, channel selective upto 8 carriers
ü Use PLL and ALC technology, high stability and reliability
ü Advanced software radio technology
ü Easy installation, operation and maintenance
2. Applications:
BTS |
Repeater |
Indoor Signal Distribution System |
Donor Antenna |

The Repeater (BDA - Bi-Directional Amplifier) is connected via coaxial cable to a Donor Antenna and Service Antenna or DAS. Usually the Donor Antenna is placed outside the building where it has the best direction to get the qualified BTS signal for the input to the repeater, after the weak signal is amplified by the repeater, the signal will be distributed by the Service Antenna or DAS are where they can extend radio coverage to the areas with weak signal.
3. Technical Specifications
NO. |
Items |
Parameters |
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Band 1 (LTE B20) |
Band 2 (TETRA385) |
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Downlink |
Uplink |
Downlink |
Uplink |
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1 |
Frequency Range |
791MHz~821MHz |
832MHz~862MHz |
395MHz~400MHz |
385MHz~390MHz |
2 |
Number of Channels |
8 |
8 |
8 |
8 |
3 |
Channel Effective Bandwidth |
1.4MHz/5MHz/10MHz/15MHz/20MHz, Software adjustable in full band |
25kHz |
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4 |
Channel Center Frequency |
Software adjustable in full band |
Software adjustable in full band |
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5 |
Output Power (Max) |
35±2.0dBm |
23±2.0dBm |
35±2.0dBm |
30±2.0dBm |
6 |
Max Gain |
90±3dB |
85±3dB |
90±3dB |
85±3dB |
7 |
Gain Modulation Rang |
30dB |
30dB |
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8 |
Gain Modulation Step |
1dB |
1dB |
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9 |
Gain Modulation Error |
While gain is 0-20dB, Error≤1dB; While gain is 21-30dB, Error≤1.5dB |
While gain is 0-20dB, Error≤1dB; While gain is 21-30dB, Error≤1.5dB |
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10 |
Noise Factor |
≤5dB |
≤5dB |
≤5dB |
≤5dB |
11 |
Max NO Damage Input Power |
-10dBm |
-10dBm |
-10dBm |
-10dBm |
12 |
Automatic Level Control (ALC) |
Output power variation < 2dB or be off when adding 10dB at max output power. Control range≥30dB. |
Output power variation < 2dB or be off when adding 10dB at max output power. Control range≥30dB. |
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13 |
Pass Band Ripple |
≤±3.0dB |
≤3.0dB |
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14 |
VSWR |
≤1.5 |
≤1.5 |
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15 |
Time Delay |
≤6.0μs@10MHz ≤5.0μs@20MHz |
≤20.0μs |
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16 |
EVM(RMS) |
≤8% |
≤6% |
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17 |
ACLR(PAR=8dB) |
Compliance with 3GPP TS 36.106 and 3GPP TS 36.143 |
/ |
||
18 |
Spectrum Emission Mask (PAR=8dB) |
Compliance with 3GPP TS 36.106 and 3GPP TS 36.143 |
/ |
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19 |
Spurious Emissions |
Compliance with 3GPP TS 36.106 and 3GPP TS 36.143 |
In-Band: ≤-36dBm/3kHz or ≤-60dBc/3kHz; Out-Band:9kHz~1GHz: ≤-36dBm;1GHz~12.75GHz:≤-30dBm; |
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20 |
IMD |
/ |
≤-45dBc/30kHz |
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21 |
Frequency Stability |
≤0.05ppm |
≤0.05ppm |
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22 |
Out of band Rejection |
≤-40dBc@±1MHz ≤-60dBc@±5MHz |
≤-30dBc@200kHz ≤-50dBc@1MHz ≤-60dBc@±5MHz |
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23 |
Squelch function |
Suppressing noise level: ≥20dB |
Suppressing noise level: ≥20dB |
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24 |
Power Consumption |
≤270W |
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25 |
Monitoring & Control |
Local: RS232 or RJ45 Remote:IP (Ethernet) |
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26 |
RF Connection Mode |
N/F,50Ω |
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27 |
Power Supply Mode |
AC100~260V,45~63Hz |
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28 |
Operation Temperature |
-25℃ ~ +55℃ |
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29 |
Relative humidity |
≤95% |
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30 |
Casing class |
IP65 |
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31 |
Machine Weight |
≤35kg |
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32 |
Dimension |
512mm× 461mm×232mm (L* W* H) |
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33 |
Mounting |
Wall mounted or pole mounted |