User Manual

ADCP-75-126 • Issue B • April 2002 • Section 2: Description
Page 2-24
© 2002, ADC Telecommunications, Inc.
Composite RF Output power 43.5 dBm (22.4 Watts) at remote
antenna port with –40 dBm input
40 Watts at power amplifier out-
put
Configurable RF Output
Range
Step size
30 dB at remote unit
1 ±0.5 dB ±10% of attenuation
monotonic
Transmit path insertion loss 2.5 dB
RF Reverse Path - 1900 MHz
System bandwidth 20 MHz AD band, 25 MHz
DBE,BEF, and EFC bands
Frequency range
AD
DBE
BEF
EFC
1850 to 1870 MHz
1865 to 1890 MHz
1870 to 1895 MHz
1885 to 1910 MHz
In band spurs (caused by an indi-
vidual out-of-band signal)
–75 dBc (1 MHz to 20 GHz
and > 10 MHz out-of-band)
–120 dBc (1930 to 1990 MHz)
–120 dBc (869 to 894 MHz) Required for dual band
Propagation delay 2.2 µs Excludes fiber delay
Configurable propagation delay
Range
Step size
Up to 60 µs
1µs
Plus standard propagation delay
Gain flatness
Band flatness
Channel flatness
1.5 dB across frequency range
±1 dB variation across any 1.25
MHz channel
Gain of reverse path
Overall gain
Gain variation
30 dB at band center at room
temperature
3 dB over temperature
ALC not invoked
ALC not invoked
Out-of-band rejection –40 dB at >
±17.5 MHz from
836.6 MHz
ALC not invoked
Spurious (in-band self gener-
ated)
–110 dBm referred to input ALC not invoked
Intermodulation –62 dBc two tones at –50 dBm
System noise figure 8 dB ALC not invoked
Configurable RF output
Range
Step size
30 dB
1 ±0.5 dB ±10% of attenuation
monotonic
Blocking dynamic range 70 dB
Level limiting ALC threshold –40 dBm instantaneous
Level limiting ALC range 30 dB
Table 2-5. 1900 MHz System Nominal Specifications, continued
PARAMETER SPECIFICATION REMARKS