ACOM 3x2000A | HF Power Splitter/Combiner

ACOM 3x2000A | HF Power Splitter/Combiner

The ACOM 3x2000A is a HF power splitter/combiner which is a passive device designed to sum the outputs of three HF linear amplifiers into a common load while the amplifiers are driven by a single exciter.

Easy to operate
There is no difference from the operation of a three times more powerful single amplifier.

For proper operation, the combiner requires three amplifier outputs having equal amplitudes and phases, i.e. three coherent signals. This is achieved by the use of three identical amplifiers in the three channels. For best results we recommend three automatic amplifiers of the type ACOM 2000A.

We recommend to use ACOM 3x2000A power splitter/combiner with following ACOM amplifier models:

  • 2000A | Automatic HF Linear Amplifier;
  • 2100 | HF + 6 m Linear Amplifier;
  • 1500 | HF + 6 m Linear Amplifier;
  • 1000 | HF + 6 m Linear Amplifier;
  • 1010 | HF Linear Amplifier.

All these models use a broadband input network which sets minimum phase differences between the units.

Automatic protection
An automatic protection circuit is implemented in the ACOM 3x2000A, which monitors the three amplifier outputs during operation. In case of an imbalance, the protection trips thus cutting the drive to the amplifiers and switching the transceiver output to an internal 50 Ohm dummy load. The imbalance power, both input and output, is swamped by powerful resistors until the protection trips. Therefore the transceiver and the three amplifiers are well protected. After fixing the trouble you can resume operation by pressing the button RESET.

Mounting possibility
As an option, a metal rack, designed for housing three ACOM 2000A amplifiers and the ACOM 3x2000A splitter/combiner, is available. The rack is built with four identical slots. Matching black anodized, machined aluminum facia perfectly accents the amplifiers and splitter/combiner. Heavy duty casters provide easy movement and transport.

Frequency Coverage

  • 1.8-30 MHz continuous;

Power Output

  • 5000 W PEP or continuous carrier into a matched load (VSWR below 1.3:1). Reduce the output at increased VSWR, linearly down to 2500W at VSWR up to 2:1;

Input and Output Impedances

  • Nominal value: 50 Ohm unbalanced, UHF (SO-239) type connectors;
  • Input circuit: broadband;
  • Input VSWR with 50 Ohm loads at the three splitter outputs: less than 1.3:1, 1.8-30 MHz continuously (no tunings, no switching);
  • Maximum output mismatch: up to 2:1 at reduced output;

Power Supply

  • Via wall wart power supply adapter;
  • Input: 100-240 VAC;
  • Output: 12 VDC / 0.5 A max.;
  • Cable length: Approx. 1.5 m;
  • Power input plug type: Europlug;

Size & Weight (operating, excluding connected cables)

  • Splitter/Combiner, WxDxH: 212x325x195 mm, 6.4 kg (8.4x12.8x7.7 inches, 14.2 lbs.);
  • Rack housing (option), WxDxH: XXXxXXXxXXXX mm, x.x kg (X.XxXX.XxX.X inches, XX.X lbs.);

Shipping Size & Weight

  • Splitter/Combiner, WxDxH: Approx. 350x350x400 mm, 10.5 kg (13.8x13.8x15.8 inches, 23.2 lbs.);
  • Please, contact us for shipment details;

Operating environments

  • Temperature range: 0 to +50 degrees Celsius (32 degrees F to 122 degrees F);
  • Relative air humidity: up to 95% @ +35 degrees Celsius (95 degrees F);
  • Height above sea level: up to 3050 m (10000 ft) without output deterioration.