User's Manual

TB8100 Specifications Manual Power Amplifier and Transmitter Specifications 29
© Tait Electronics Ltd June 2004
Protection
Temperature
Current
Supply Voltage
VSWR
power foldback to 10% if RF power devices exceed safe
operating conditions
power foldback and shutdown if RF power devices
exceed safe operating currents
power foldback to 10% when supply voltage is 24V to
26V and 30V to 32V; shutdown when supply voltage
is <24V and >32V
power foldback to 10% at VSWR extremes; continuous
analogue power foldback to maintain 100% duty cycle
into mismatched loads
Power Amplifier RF Section (Continued)
Transmitter RF Section
The specifications in this section pertain only to the combination of a 5W, 50W or 100W power amplifier
with a TB8100 reciter.
Adjacent Channel Power
Steady State (Full Deviation)
Narrow Bandwidth
Mid* and Wide Bandwidth
Transient (Unmodulated)
Narrow Bandwidth
Mid* and Wide Bandwidth
*H band only
<–60dBc
<–70dBc
<–50dBc
<–60dBc
Sideband Noise*
±25kHz
±1MHz
±10MHz
*no modulation, measured from centre frequency
<–137dBc/Hz
<–147dBc/Hz
<–147dBc/Hz at 5W
<–157dBc/Hz at 50W
<–160dBc/Hz at 100W
Hum and Noise
Narrow Bandwidth
Mid Bandwidth*
Wide Bandwidth
*H band only
–50dB (300Hz to 3kHz [ANSI/TIA])
–54dB (300Hz to 3kHz [ANSI/TIA])
–55dB (300Hz to 3kHz [ANSI/TIA])
Intermodulation –40dBc with interfering signal at –30dBc at PA output