AR 1000W1000G, Operating And Service Manual, Page: 19 / 70

Rev A 1
1. GENERAL INFORMATION
1.1 GENERAL DESCRIPTION
The Model 1000W1000G 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 1000W1000G, used with a frequency-swept signal source, will provide 1000
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 1000W1000G 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 1000W1000G 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 1000W1000G contains sixteen final modules and a driver section. The driver section contains a
PreAmp and final module.
The input voltage range to the power supplies is 200–240 VAC, 50-60Hz, selected automatically. The AC
input power, combined for these four supplies is approximately 3300 watts.
PS1 is a Triple output supply (+5V, +15V, -15V). +5V is supplied to the A34 Switch Breakout Assembly and
A35 Regulator Assembly. +15V is supplied to the A24 Detector Assembly and A35 Regulator Assembly. -
15V is supplied A1 PreAmp and A35 Regulator Assembly.
PS2 is a +24V single output 300W supply. It supplies voltage to the seven cooling fans. B1- B9.