User's Manual
SDR Repeater 
  User Manual V0.4 
Page | 43  
7. Specifications 
7.1 Electrical Specifications 
Specifications 
Parameters 
SDR-S (SMR800/900)  SDR-P (PCS)  SDR-B (BRS) 
SMR800 851~869MHz
DL 
SMR900 935~940MHz
1930~1995MHz 
SMR800 806~824MHz
Frequency 
Range 
UL 
SMR900 896~901MHz
1850~1915MHz 
2502~2690MHz 
Frequency Error    ≤ ±0.05ppm  ≤ ±0.02ppm 
Band Selection 
0.25MHz Step, Max 18 
MHz 
1.25MHz Step Max 18.75 MHz 
(Non-Contiguous 3ch) 
2.5MHz Step Max 30 MHz   
(Continuous 1ch)
Full band  ≤ ±1.5dB  ≤ ±1.5dB  ≤ ±1.5dB 
Gain Flatness 
Each band  ≤ ±1.5dB  ≤ ±1.5dB  ≤ ±1.5dB 
Maximum 80dB  90dB  90dB 
Step 0.5dB  0.5dB  0.5dB 
Range 30dB  30dB  30dB 
Gain 
Tol eran ce 
≤ ±1.0dB  ≤ ±1.0dB 
≤ ±1.0dB 
24dBm (SDR-24)  24dBm (SDR-24)  24dBm (SDR-24) 
Composite Output power   
30dBm (SDR-30)  30dBm (SDR-30)  30dBm (SDR-30) 
Delay 8us 6us  6us 
Roll offs  0.5MHz@ 65dBc  1MHz@ 50dBc 
1MHz@ 40dBc 
3.5MHz@ 80dBc 
Noise Figure( Uplink Only)  6dB@ Max Gain  6dB@ Max Gain  6dB@ Max Gain 
VSWR (Input Only)  1.5:1  1.5:1  1.5:1 
Sync Detection Level      <-85dBm Typ (Max -90dBm) 
Specifications 
Parameters 
SDR-700 (LTE)  SDR-C (CELL)  SDR-A (AWS) 
Upper C  746~757MHz
Lower A  728~734MHz
DL 
Lower B  734~740MHz
869~894MHz 2110~2155MHz 
Upper C  776~787MHz
Lower A  698~704MHz
Frequency 
Range 
UL 
Lower B  704~710MHz
824~849MHz 1710~1755MHZ 
Frequency Error  ≤ ±0.05ppm  ≤ ±0.05ppm  ≤ ±0.05ppm 
Band Selection 
0.25MHz Step, Max 12 MHz 
(Non-Contiguous 2ch) 
0.25MHz Step, Max 25 MHz 
1.25MHz Step, Max 18.75 MHz   
(Non-Contiguous 3ch)
Full band  ≤ ±1.5dB  ≤ ±1.5dB  ≤ ±1.5dB 
Gain Flatness 
Each band  ≤ ±1.5dB  ≤ ±1.5dB  ≤ ±1.5dB 
Maximum 90dB  90dB  90dB 
Step 0.5dB  0.5dB  0.5dB 
Gain 
Range 30dB  30dB  30dB 










