Tektronix Encore

Amplifier Research 1000L
RF Amplifier, 10 kHz - 220 MHz, 1000W

Amplifiers - RF and Microwave >> 1 GHz or Less and 1000 Watt or More >> RF Amplifier, 10 kHz - 220 MHz, 1000W
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Manufacturer: Amplifier Research
Model: 1000L

Amplifier Research 1000L RF Amplifier, 10 kHz - 220 MHz, 1000W

Electronic Test and Measurement Equipment

Amplifier Research 1000L RF Amplifier, 10 kHz - 220 MHz, 1000W Product Datasheet Download Product Datasheet

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Product Overview


The Amplifier Research 1000L Amplifier is an economical, self-contained, air-cooled broadband RF Amplifier designed for laboratory applications that require instantaneous bandwidth, high gain and high output power. Housed in a stylish contemporary enclosure, the 1000L is smaller than competitive units with similar power levels. All operating controls are functionally grouped on the front panel for simplicity of operation. These include modern, lighted push-button switches for the command functions, POWER, STANDBY, OPERATE and PULSE, a control for setting the output level of the amplifier, and a meter for monitoring critical operating voltages and currents. Remote control is provided through a rear panel mounted connector. A highly versatile unit, the 1000L features rugged circuitry and a quick-acting, solid state crowbar circuit to protect the final amplifier tubes from damage due to internal arcing. An electronic circuit is provided to enable rapid gating or blanking of the amplifier.

Specifications of the Amplifier Research 1000L RF Amplifier include:


  • High Range
    • Pulse
      • Minimum: 2500 watts to 150MHz and 1750 watts to 220MHz
      • Duty Cycle: 15%
      • Pulse Width: 8 milliseconds
      • CW Minimum: 1200 watts
  • Low Range: 100 watts nominal

FLATNESS, high range: ± 1.5 dB

FREQUENCY RESPONSE: 10 kHz - 220 MHz instantaneously

INPUT FOR RATED OUTPUT: 1.0 milliwatt maximum

GAIN (at maximum setting)

  • High Range: 61 dB minimum
  • Low Range: 47 dB minimum

GAIN ADJUSTMENT (continuous range): 18 dB minimum

INPUT IMPEDANCE: 50 ohms, VSWR 1.5:1 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: Linear amplitude and phase response to over 80 MHz allows faithful reproduction of AM, FM, Pulse, or phase modulation appearing on the input signal


  • Above 120 MHz: Minus 30 dBc maximum
  • Below 120 MHz:  Minus 15 dBc maximum / Minus 18 dBc nominal



  • Pulse Mode Pedestal/CW Mode Blanking
    • Signal (into 180 ohms): Plus or minus 2.5 to 6.0 VDC
    • Rise time: 20 microseconds maximum
    • Fall time: 4 microseconds maximum
  • RF Rise/Fall Time: 10 nanoseconds maximum
  • RF Pulse Droop: 1.0% maximum at 8 milliseconds

PRIMARY POWER (specify one):

  • 200/208 ± 5% VAC, 3 phase, 50/60 Hz
  • 380/415 ± 5% VAC, 3 phase, 50/60 Hz
  • 400/415 ±5% VAC, 3 phase, 50/60Hz
  • 15.2 kVA nominal


  • RF Input: Type BNC female
  • RF Output, high range: Type C female
  • RF Output, low range: Type N female
  • Gating/Blanking: Type BNC female
  • Remote Control: 25 pin female subminiature D

COOLING: Forced air (self contained fans)

WEIGHT: 239 kg (525 lb)

SIZE (WxHxD):  56.1 x 149.9 x 58.4 cm / 22.1 x 59.0 x 23.0 in

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