A30808-X3247-L14-2-7618
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Information
Base Station System
Technical Description (TED:BSS)
BS-240/241
4.1.3 Parameters of Tower Mounted Amplifier (TMA)
900 MHz Tower Mounted Amplifier
Electrical System Specified Typical
Uplink RF-band 890- 915 MHz
Return Loss (ANT / BTS port) > 14 dB > 15 dB
Return Loss by- pass mode > 7,7 dB > 10dB
Nominal gain 25.5 +2/- 2.5 dB at 25˚C (77˚F)
25.5 +3/- 3.5 dB -33˚C to +65˚C
(-27˚F to +149˚F)
25.5 +/- 1 dB at
25˚C (77˚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 dB max. 3.4 dB
Noise figure, max. 3.6 dB 2.8 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 >= 6 dBm
Current consumption < = 500 mA < = 400 mA
Downlink RF- band 935 – 960 MHz
Insertion loss < = 0.8 dB < = 0.4 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
< = -108 dBm
-120 dBm
Passive Intermodulation products,
max. @ BTS port
IMD3 and higher
<= -108 dBm + Gain (Ant- BTS)
-100 dBm
Tab. 4.3 Parameters of 900 MHz Tower Mounted Amplifier
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