User's Manual

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©2013 Broadcast Electronics
3.1.13 PA RF IN
Power Amplifier RF Input connector. For 1kW systems this is cabled from EXC RF OUT.
For combined systems, this should be connected to one of the splitter RF outputs on the
combiner module designated A, B, C, D, or E using phase matched cables.
3.1.14
RF SAMPLE
Power amplifier RF sample connector. This BNC carries a coupled RF signal from the
module’s PA. This is intended to be used in 1kW systems in optional monitoring of RF
output.
Nominally generates about 19 dBm at about 1kW PA output power. The output level
scales with total output power of the PA module.
3.1.15
10 MHz IN
10 MHz clock input connector. This BNC synchronizes the exciter’s internal clocking to a
connected sinusoidal clock signal. To lower the chances of drift, connect high precision
clock generators such as GPS receiver modules or digital radio signal generators.
3.1.16
1 PPS IN
The one pulse per second BNC input connector synchronizes stereo pilot signals such
that rising zero-crossing point in the pilot signal corresponds to the rising edge of this
logic clock. A high precision clock generator such as GPS receiver modules or digital
radio signal generators is recommended.
3.1.17
RF OUT
Power Amplifier RF output connector. This N-connector output carries the amplified RF
output. Connect this output to a 50 Ohm load/input.
3.1.18
Power Switch
AC power switch. This hand operated switch turns on or off power service to the device.
Complete power-down of the module may take a few seconds.
3.1.19
Ground
Ground bolt that can be used to locally connect chassis ground to source connections or
any other device that may generate ground loop noise.
3.1.20
AC Input
The AC power input terminal block provides a direct connection for split-phase service.
Conductors must be in proper order. From left to right these are Line, Line/Neutral, and
Ground.