Mhu Specifications; Dd900 Narrow Band Masthead Unit - ADC ClearGain User Manual

ADCP-75-154 • Issue 3 • August 2006

5 MHU SPECIFICATIONS

5.1

DD900 Narrow Band Masthead Unit

Table 1 provides typical specifications for the DD900 Full Band Masthead Unit.
CATEGORY
ELECTRICAL
FILTER
POWER HANDLING
POWER
PHYSICAL
ENVIRONMENTAL
QUALITY
Page 16
© 2006, ADC Telecommunications, Inc.
Table 1. DD900 Narrow Band Masthead Unit
PARAMETER
Nominal impedance of RF input and outputs 50 Ohm
Frequency Range
TX
RX
Duplex Filter Bandwidth
Passband (RX)
Gain
Noise Figure
Dynamic Range
Input at 1 dB compression
IIP3
Insertion Loss of TX Path (TX to Antenna)
Passband Return Loss
TX Band
RX Band
Intermodulation
Maximum Input Power at Each BTS Input
RMS Power TX
Peak Power TX
Duration
Period Between Peaks
Fault Management
Operational Voltage
Operational Current
Alarm Current Level
Dimensions (HxWxD)
Weight
Color
Housing
Operating Temperature
Outdoor Protection
MTBF
Lightening Protection
SPECIFICATION
935–960 MHz or 925–950 MHz
890–915 Mhz or 880–905 Mhz
25 MHz
12 dB
1.4 dB typical
3.0 dB
+15 dBm
0.2 dB
20 dB
20 dB
–120 dBm
200 W
1.44 kW
20 microseconds
550 microseconds
Bypass
7 to 15 VDC
150 mA
±
175 5 mA
280 x 250 x 85 mm
5.5 kg
Silver
Aluminum
° °
–40 C to +65 C
IP65
< 500,000 hours
IEC 801-5 and IEC 1312