User Manual

ADCP-75-116 • Issue A • August 2001 • Section 2: Description
Page 2-23
© 2001, ADC Telecommunications, Inc.
RF Forward Path - SMR 800 MHz
System bandwidth
15 MHz
Frequency range 851 to 866 MHz
Gain of host/remote link 85 ± 3 dB at band center and
room temperature
Includes power amplifier.
Gain flatness <
± 1.5 dB across freq. range
<
± 1 dB variation across any
1.25 MHz channel
Gain variation <
± 3 dB over temp and unit-to-
unit
Gain adjustment Software adjustable in 30 steps
of 1 ± 0.25 dB
Out-of-band rejection –40 dB bandwidth <
30 MHz
Propagation delay < 6 µs maximum Excludes fiber delay.
Variable propagation delay
adjustability
Software adjustable in 1µs incre-
ments over a 0 to 60 µs range
Spurious (self generated) <
–13 dBm at remote output
Spurious free dynamic range < –60 dBc
Tx peak to average > 10 dB
Intermodulation <
–55 dBc at remote output
Maximum composite RF input
signal level
–10 to –40 dBm, adjustable in 1
dB increments
(The host requires a–40 dB input
signal level)
–40 dBm with host attenuator at
0 dB
–10 dBm with host attenuator at
30 dB
Tx path insertion loss 2.5 dB maximum
Output power ≥ 50 Watts at power amplifier
output
30 Watts (45 dBm) at remote
antenna port
RF Reverse Path - SMR 800 MHz
System bandwidth 15 MHz
Frequency range 806 to 821 MHz
Gain 30 ± 2 dB at band center
Gain flatness <
± 1.5 dB across frequency
range
<
1 dB variation across any 1.25
MHz channel
Gain variation <
± 3 dB over temperature and
unit-to-unit
Out-of-band rejection –40 dB bandwidth <
30 MHz
Table 2-5. System Specifications, continued
PARAMETER SPECIFICATION REMARKS