Amplifier Research 20S1G4 Solid State Amplifier 0.7GHz – 4.2GHz 20W

Description

Amplifier Research 20S1G4 is a solid state, self-contained, air-cooled, broadband amplifier designed for applications where instantaneous bandwidth and high gain are required.

Housed in a stylish contemporary cabinet, the unit is designed for benchtop use, but can be removed from the cabinet for immediate equipment rack mounting. The 20S1G4, when used with a sweep generator, will provide a minimum of 20 watts of RF power. Included is a front panel gain control which permits the operator to conveniently set the desired output level.

The 20S1G4 is protected from RF input overdrive by an RF input leveling circuit which controls the RF input level to the RF amplifier first stage when the RF input level is increased above 0 dBm. The RF amplifier stages are protected from over-temperature by removing the DC voltage to them if an over temperature condition occurs due to cooling blockage or fan failure. There is a digital display on the front panel to indicate the operate status and fault conditions when an over-temperature or power supply fault has occurred. The unit can be returned to operate when the condition has been cleared.

The 20S1G4 includes digital control for both local and remote control of the amplifier. All amplifier control functions and status indications are available remotely in GPIB/IEEE- 488 format, RS-232 hardwire and fiber optic, USB, and Ethernet. The bus interface connector is located on the back panel and positive control of local or remote operation is assured by a Local/Remote switch on the front panel of the amplifier.

 

Features

  • Broadband
  • Solid State 
  • Mismatch Tolerant
  • Modulation Capability
  • Digital Control Panel
  • Automatic Primary Power Selection
  • RF Input Leveling Circuit – Overdrive Protection
  • Over Temperature Protection
  • Standard Remote Interfaces
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Specifications

RATED POWER OUTPUT

20 watts minimum

POWER OUTPUT @ 3dB COMPRESSION

Nominal

25 watts

Minimum

20 watts

POWER OUTPUT @ 1dB COMPRESSION

Nominal

22 watts

Minimum

18 watts

FLATNESS

±1.5 dB typical

±2.0 dB maximum

FREQUENCY RESPONSE

0.7-4.2 GHz instantaneously

INPUT FOR RATED OUTPUT

1.0 milliwatt maximum, 0 dBm

GAIN (at maximum setting)

43 dB minimum

GAIN ADJUSTMENT (Continuous Range)

10 dB minimum (4096 steps remote)

INPUT IMPEDANCE

50 ohms, VSWR 2.0:1 maximum

OUTPUT IMPEDANCE

50 ohms, nominal

MISMATCH TOLERANCE

100% of rated power without foldback. Will operate without damage or oscillation with any magnitude and phase of source and load impedance.

MODULATION CAPABILITY

Will faithfully reproduce AM, FM, or pulse modulation appearing on the input signal

HARMONIC DISTORTION

Minus 20 dBc maximum at 20 watts

SPURIOUS

73 dBc typical

THIRD ORDER INTERCEPT POINT

52 dBm typical

NOISE FIGURE

10 dB typical

PRIMARY POWER

(selected automatically)

90-132, 180-264 VAC

50/60 Hz, single phase

<210 watts maximum

CONNECTORS

RF INPUT & OUTPUT

Type N female on front panel

REMOTE INTERFACES

IEEE-488

24 pin female

RS-232

9 pin Subminiature D (female)

RS-232 (Fiber-optic)

Type ST

USB 2.0

Type B

Ethernet

RJ-45

SAFETY INTERLOCK

15 Pin Subminiature D

COOLING

Forced air (self contained fans)

SIZE (W x H x D)

50.3 x 15.5 x 37.6 cm, 19.8 x 6.1 x 14.8 in

WEIGHT (approximate)

16.8 kg (37 lbs)

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