User's Manual

ADCP-75-110 • Issue 2B • July 2001
Page 14
© 2001, ADC Telecommunications, Inc.
Table 5. System Specifications, continued
PARAMETER SPECIFICATION REMARKS
RF Forward Path
System Bandwidth 25 MHz
800 MHz frequency
range (A and B band)
US Cellular 869 to 894 MHz
1900 MHz freq. ranges
AD band
DBE band
BEF band
EFC band
US PCS
1925 to 1950 MHz
1945 to 1970 MHz
1950 to 1975 MHz
1965 to 1990 MHz
Output power +13 dBm
± 1 dB at midpoint of passband
Maximum composite power
Gain +33 ± 1.5 dB at band center At room temperature
Gain variation < 6 dB
< 1.5 dB variation
Over frequency, temperature, and
unit to unit.
Per 1.25 MHz CDMA channel
OIP3 > +35 dBm At +13 dBm composite output
CDMA ACPR1 < –45 dBc
Spurious Output < –35 dBm
DHU RF input signal
level
–20 dBm maximum composite Provides a nominal +13 dBm RF
output signal at the DRU
RF Reverse Path
System bandwidth 25 MHz
800 MHz frequency
range (A and B band)
US Cellular 824 to 849 MHz
1900 MHz freq. ranges
AD band
DBE band
BEF band
EFC band
US PCS
1845 to 1870 MHz
1865 to 1890 MHz
1870 to 1895 MHz
1885 to 1910 MHz
Gain +10 dB
± 1 dB at midpoint of passband
Gain Variation < 6 dB
< 1.5 dB variation
Over frequency, temperature, and
unit to unit.
Per 1.25 MHz CDMA channel
Automatic Gain
Limiting
Prevents A/D saturation with
large inputs. Disabled for
composite RF input <
–40 dBm
Noise Figure < 8 dB typical midband 8 + 10 log N (N = # of remotes) See
Note at end of table
DHU RF output signal
level
–30 dBm typical With a –40 dBm composite maximum
input signal at the DRU
(continued)