Siemens BS-241 - Parameters of 1800 MHz Tower Mounted Amplifier

56
A30808-X3247-L14-2-7618
Technical Description (TED:BSS)
BS-240/241
Information
Base Station System
1800 MHz Tower Mounted Amplifier
Electrical System Specified Typical
Uplink RF-band 1710 - 1785 MHz
Return Loss (ANT / BTS port) > 14 dB > 16 dB
Return Loss by- pass mode > 7,7 dB > 10dB
Nominal gain 25.0 +2/- 2.5 dB at 25˚C (77˚F)
25.0 +3/- 3 dB -33˚C to +65˚C
(-27˚F to +149˚F)
25.9 +/- 1 dB at 25 ˚C
(77˚F)
25.9 +/- 2 dB -33˚C to
+65˚C (-27˚F to
+149˚F)
Gain ripple < +/- 0.5 dB at 25˚C (77˚F)
< +/- 0.8 dB -33˚C to +65˚C
(-27˚F to +149˚F)
Passband ripple, max < = 0.5 dB
Insertion loss bypass mode, max. < = 5.2 dB max. 3.8 dB
Noise figure, max. 3.6 dB 2.5 dB
Max. input power CW 8 x 15 Watt input TMA
1 dB compression point (CP1) > = 16.5 dBm (output)
3rd order Intercept Point (IP3) on input + 1 dBm >= 4 dBm
Current consumption < = 500 mA < = 400 mA
Downlink RF- band 1805 –1880 MHz
Insertion loss < = 0.8 dB < = 0.6 dB
Downlink Return Loss (ANT / BTS port) > = 18 dB >= 18.5 dBm
Return Loss (ANT / BTS port) bypass
mode
> = 18 dB >= 18.5 dBm
Passive Intermodulation products,
max. @ ANT port
IMD3 and higher
< = -109 dBm
-116 dBm
Passive Intermodulation products,
max. @ BTS port
IMD3 and higher
<= -109 dBm + Gain (Ant-
BTS)
-90 dBm
Tab. 4.4 Parameters of 1800 MHz Tower Mounted Amplifier