Brief
This product is used in the GSMR repeater station system, easy to use, high level of integration. Included in this product are downgoing amplifiers, uplink Low Noise components, etc. Internal components of single CPU centralized control, have the power, over current, over temperature, a Standing wave protection mechanism, and report to the alarm state. External communication interface RS485, the stability and anti-interference ability of data communication.
Technical index
No. |
Technical parameters |
Technical index |
uplink |
downgoing |
1 |
Working frequency (MHz) |
885~889 |
930~934 |
2 |
Max Output power(dBm) |
-5±1 |
40±1 |
3 |
Third order intermodulation IMD3(dBc) |
≤-60 |
≤-60 |
4 |
Output power adjusting range (dBm) |
-15~-5 |
30~40 |
5 |
ALC Control range (dB) |
≥10 |
≥10 |
6 |
Noise factor(dB) |
≤2 |
-- |
7 |
Max gain (dB) |
55±1 |
55±1 |
8 |
Passband fluctuation(dB) |
≤±1.0 |
≤±1.0 |
9 |
Gain adjusting range (dB) |
≥30 |
≥30 |
10 |
Gain Adjusting step length(dB) |
1 |
1 |
11 |
Precision of Gain Adjusting step length (dB) |
1~20dB |
≤±1 |
≤±1 |
20~30dB |
≤±1.5 |
≤±1.5 |
12 |
Out-of-band suppression(dBc) |
≥15
@930-960MHz |
≥15
@885-915MHz |
13 |
Max Allowable input level (dBm) |
-10 |
+10 |
14 |
Spurious emission(dBm) |
≤-36dBm/1KHz@9KHz-150KHz |
≤-36dBm/10KHz@150KHz-30MHz |
≤-36dBm/30KHz@30MHz-1GHz |
≤-30dBm/30KHz@1GHz-12.75GHz |
15 |
Input, Output voltage Standing wave ratio |
≤1.4 |
16 |
Working voltage (V) |
28V±1 |
17 |
Radio frequency interface |
SMA-K |
18 |
Monitoring interface |
RS485 |
19 |
Monitoring protocol |
《YJ Internal module communication protocol》 |
20 |
Environment temperature (℃) |
-25 - +55 |
21 |
Relative humidity (%) |
45~75 |
22 |
Module size (L*W*H) |
200*150*23 |