User Manual

ADCP-75-150 • Preliminary Issue A • March 2003 • Section 2: Description
Page 2-29
© 2003, ADC Telecommunications, Inc.
Nominal composite RF input
signal level
–40 dBm at 0 dB attenuation
–10 dBm at max. attenuation
An input signal level of –40 dBm
provides maximum output power
Configurable input level
Range
Step size
30 dB
1 ± 0.5 dB ±10% of attenuation
monotonic
Composite RF Output power 40.5 dBm (11 Watts) at remote
antenna port with –40 dBm input
20 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 - 800 MHz
Bandwidth
A band
B band
11 and 1.5 MHz
10 and 2.5 MHz
Frequency range
A band
B band
824–835 and 845–846.5 MHz
835–845 and 846.5–849 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 63 µs
0.1µs
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 9 dB ALC not invoked
Table 2-6. 800 MHz 20 Watt System Nominal Specifications, continued
PARAMETER SPECIFICATION REMARKS