AR 10046836, Руководство по эксплуатации и обслуживанию

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Rev A 1
1. GENERAL INFORMATION
1.1 GENERAL DESCRIPTION
The Model 500W1000C is a self-contained, broadband solid-state amplifier designed for laboratory
applications where instantaneous bandwidth, high gain, and moderate power output are required. A GAIN
control, which is conveniently located on the unit’s front panel, can be used to decrease the amplifier’s gain by
25 decibels (dB) or more. Solid state technology is used exclusively to offer significant advantages in reliability
and cost. A Model 500W1000C, used with a frequency-swept signal source, will provide 500 watts of swept
power output from 80–1000 megahertz (MHz). Typical applications include antenna and component testing,
wattmeter calibration, and electromagnetic interference (EMI) susceptibility testing, as well as usage as a driver
for frequency multipliers and high-power amplifiers. The Model 500W1000C can be operated locally by using
the unit’s front panel controls, or remotely by using the unit’s IEEE-488, RS-232 interface, USB, or Ethernet
interface.
Special features incorporated into the Model 500W1000C include the following:
• A Digital Control Panel (DCP) that allows both local and remote (via a computer interface) control of the
amplifier (including adjustment of the amplifier’s RF Gain during CW mode operation) and provides
graphical displays of the amplifier’s Forward and Reflected power levels.
• RF output level protection.
•
A General Purpose Interface Bus (GPIB)/IEEE-488.2 interface for remote control of the amplifier’s
operating functions.
•
RS232 serial communications including both wire and fiber-optic ports for remote control.
•
USB Communication port for remote control.
•
Ethernet Communication port for remote control.
•
Protection
is provided by DC current limiting, over-temperature shut down and RF power limiting.
1.2 SPECIFICATIONS
Refer to the AR RF/Microwave Instrumentation Data Sheet at the end of this section for detailed specifications.
1.3 POWER SUPPLIES
The Model 500W1000C contains three switching power supplies. The input voltage range to the power supplies
is 120–240 VAC, 50-60Hz, selected automatically. The AC input power, combined for these two supplies is
approximately 1780 watts.
PS1 is a multiple output supply. The main +24V at 7.5A supplies voltage to cooling fans B1 through B5. The -
15V at 1A is supplied to the A1 Pre-Amp, A2 Driver as well as Final modules A6 through A13. The +15V at
5A is supplied to the A16 Detector. The +5V at 2A is supplied to the Control Panel Assembly A18, the Interface
Board A20 and the ALC Board A17.
PS2 is a +24V, 67A switching supply that su24 volts to Final Modules A10-A13.
PS3 is a +24V, 67A switching supply that su24 volts to Final Modules A6-A9.