User manual

ADCP-75-154 • Issue 3 • August 2006
Page 18
© 2006, ADC Telecommunications, Inc.
5.3 DD1800 Masthead Unit
Table 3 provides typical specifications for the DD1800 Masthead Unit.
Table 3. DD1800 Narrow Band Masthead Unit
CATEGORY PARAMETER SPECIFICATION
FILTERS
RX (up link) frequency range 1710–1755, 1720–1765, or 1740–1785 MHz
TX (down link) frequency range 1805–1850, 1815–1860, or 1835–1880 MHz
Insertion Losses
1800 Tx 0.2 dB
UMTS Rx and Tx 0.2 dB
900 Rx and Tx 0.1 dB
Intermodulation at RX Band –120 dBm
Power Handling Capability 500W RMS, 10 kW peak
Return Loss 20dB
LNA WITH (FILTER)
Gain 12 dB fixed
Passband ripple ± 0.5 dB
Noise Figure 1.5 dB
IIP3 + 13 dBm
Bypass Loss Typical < 2.0dB, RF relay connection
PHYSICAL
Dimensions (HxWxD) 196 x 260 x 63 mm
Weight 5 kg
Color Silver
CONNECTORS
Antenna Connector 7/16 DIN receptor
BTS Connector 7/16 DIN receptor
INTERMODULATION
Intermodulation –120 dBm
ENVIRONMENTAL
Operating Temperature
–40
° C to +65° C
Outdoor Protection IP65
QUALITY
MTBF < 500,000 hours
Lightening Protection IEC 801-5 and IEC 1312