GatesAir Inc. CZF Manual De Usuario
APEX
™
Exciter Incorporating FLO
™
Technology
Installation
Retrofitting Into Existing Transmitter System
Page: 2-6
888-2604-001
03/08/07
WARNING: Disconnect primary power prior to servicing.
2.5.3.2
Atlas Mobile Transmitter - 2 or More PA Cabinets
When the Atlas Mobile Transmitter has two or more PA cabinets, the feedback signals are
connected as shown in Figure 2-4.
connected as shown in Figure 2-4.
• The HPF feedback sample is taken from the high power filter output coupler.
• The PA sample is taken from the cabinet combiner output coupler.
• If the transmitter system has dual exciters, feedback samples for each exciter are ob-
tained by splitting each sample cable, as shown in Figure 2-4
• The feedback signals at the exciter input should be padded to yield 0 dBm at the high-
est expected transmitter output power. The sample input power range is -30 to 0 dBm.
Figure 2-4 Atlas Mobile Transmitter - Dual PA Cabinets - Dual Exciters
PA
PA Cabinet
Output
Coupler
High
Power
Combiner
Coupler
Cabinet
Combiner
Filter
RFU/
Exciter
Switcher
PA Cabinet
Apex FLO
Exciter
Apex FLO
Exciter
2-Way
Splitter
2-Way
Splitter