Photograph; 480 Mhz Low Isolation Duplexer (Ae04A-D1443-001); Description; Specification - Andrew AE04A-D1248-001 Operation & Maintenance Manual

5.2.3 Photograph

5.3 480 MHz Low Isolation Duplexer (AE04A-D1443-001)

5.3.1 Description

The 480 MHz, low isolation duplexer provides the band selectivity and isolation
for the Uplink and the Downlink frequency. The duplexer is based on 4 ceramic
coaxial resonators design and is aligned carefully during production to optimize
the insertion loss, isolation, and VSWR
The duplexer is a fully passive device and should have an extremely long trouble-
free working life and requires no maintenance. Should the duplexer be suspect of
failure, the entire duplexer module should be replaced.

5.3.2 Specification

PARAMETER
Frequency Range: Downlink
Passband Insertion Loss
Passband VSWR
Impedance
Power Handling
Downlink-To-Uplink Isolation
Uplink-To-Downlink Isolation
Operating Temperature
DWG NO: AE04B-A1669
Uplink
400/800 MHz Fiber Optic & RF Fed Bi-Directional
Wireless Innovations Group
2601 Telecom Parkway
Richardson, Texas 75082
Rev: B
SPECIFICATION
483.1375 – 483.2625 MHz
486.1375 – 486.2625 MHz
3.5 dB
< 1.2:1
50 Ohms
5 Watt
> 50 dB @ Receive Port
> 55 dB @ Transmit Port
-20°C to +60°C
Amplifier Operations / Maintenance Manual
Date: 06/18/2008 27 of 63
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