User Manual

Table Of Contents
Mission Valley Radio Repeater Equipment + Upgrade
User/Maintenance Handbook
Handbook No. 50-078021HBKM Page 59 of 85
5.3.1 Description
These new high power (80Watts) amplifier shelves have been introduced in place of the 40W
amplifiers originally supplied. The higher power amplifiers are needed to maintain sufficient power per
channel for the 800MHz cellular repeater as there are now 19 extra channels. This shelf has two
amplifiers, a low noise amplifier and a low power (2W) amplifier which acts as a driver for the high
power shelf (50-146703). A 0-15dB switched attenuator at each of the two inputs allows accurate
balancing of the signal through the high power stages. As with all other shelves, alarms exist for all
the amplifiers and they terminate on the rear panel ‘D’ connector as a summary, volt-free relay
contact pair, pins 1 & 2.
5.3.2 Technical Specification
PARAMETER SPECIFICATION
Frequency range: 855-869MHz (Downlink)
Downlink output power: 2W (driver for HPA)
Uplink output power: N/A
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: <15kg
Shelf gain: 50dB (typical)
Impedance: 50
Humidity: 5 – 95% non-condensing
RF Connectors: N type female
Environmental protection: IP44
Case: Alocrom 1200/Iridite NCP coating
Heatsinks: Black anodised aluminium
Handles: Silver anodised aluminium alloy
Finish
Fascia: Painted to RAL7035
5.3.3 Parts List
AFL Part # Part Description Qty.
02-007201 900MHz 8POLE 10-20MHz B/W SMA 4
10-000901 SW. ATTENUATOR 0.25W 0-15dB 2
11-005902 900MHz LOW NOISE AMP WITH RELAY ASS 2
12-005920 3U 10W PWR AMP HEATSINK 1
12-021902 POWER AMPLIFIER 900MHz 2W +12V 2
13-001803 DUAL DC/DC CONVERTER 24V-12V 1A 1
19-000921KL 3U chassis kit 400 deep with led 1
80-008901 12V RELAY PCB ASSEMBLY **NO LED** 1
91-030002 N ADAPTOR PANEL FEMALE:FEMALE 4
91-130005 SMA BULKHEAD ADAPTOR F/F 4
91-500001 POWER PLG 3 PIN PNL.MOUNT NC-X 2
91-510003 3 PIN R.ANGLE FREE SOC.NC-X. 2
91-600007 'D' 9 WAY BLACK SHELL 1
91-600014 'D' 9 WAY SOCKET S/B (NON FILTERED) 4
91-600015 'D' 9 WAY PLUG S/B (NON FILTERED) 1
94-100004 STPS12045TV 60A DUAL DIODE 1