User's Manual

Bronx Justice Centre Radio Repeaters
Handbook Number: 80-283501HBKM Page: 38 of 86
4.1.13.1 Description
The passive downlink output combiner shelf receives the five separate VHF cell enhancer output
signals and couples them together through hybrid and bandpass filters into three identical paths.
This shelf has no power source and no alarms.
4.1.13.2 Technical Specification
PARAMETER SPECIFICATION
Height: 3U
Width: 19" (482.6mm)
Shelf
dimensions:
Depth: <450mm (excluding connectors & handles)
operational: -20°C to +60°C Temperature
range:
storage: -40°C to +70°C
Weight: <10kg
Frequency ranges passed: 153.965 to 154.980 & 158.925MHz
Impedance: 50ȍ
Humidity: 5 – 95% non-condensing
RF Connectors: N type female
Environmental protection: IP44
Case: Iridite NCP coat
Heatsinks: None
Handles: Silver anodised aluminium alloy
Finish
Fascia Painted to RAL7035
4.1.13.3 Parts List
AFL Part # Part Description Qty.
01-003105 SD NOTCH FILT.N 6 SECT.VHF H/B SMA 2
05-000103 TX HYBRID COUPLER 3 PORT NO HTSINK 3
19-000922K 3U CHASSIS KIT (450mm deep) 1
91-030002 N ADAPTOR PANEL FEMALE:FEMALE 6
91-130001 SMA ADAPT 'T' ALL FEMALE 3 GHz 1