HF200 Series – 20 kW HF Wide Band Antenna Matching - SMC
HF200 Series – 20kW HF Wide Band Antenna Matching

HF200 Series – 20 kW HF Wide Band Antenna Matching

The HF200 Series is a remarkable line of 20 kW average power transformers, specially designed for communication or broadcast systems.

These transformers are encased in a finned cast aluminium tank, ensuring exceptional natural convection cooling. Each casting undergoes a double vacuum resin impregnation process, guaranteeing complete sealing for the internal low loss silicone cooling oil.

Key Features:

  • Broad band coverage from 1.5 to 32 MHz, ensuring compatibility across a wide range of frequencies.
  • Impressive power handling capabilities – 20 kW average power with 100% AM modulation, meeting demanding requirements.
  • Ideal for communication or broadcast applications, offering versatile functionality.
  • Very high efficiency, ensuring optimal performance and energy utilization.
  • Designed for all-weather unprotected operation, providing reliability in any environmental condition.
  • High purity alumina ceramic insulators with arcing horns come standard, delivering enhanced performance. Additionally, an internal static drain to earth offers added protection against lightning-induced high voltages.

The HF200 Series sets a new standard, surpassing all Minns “Y” types of 20 kW transformers, offering the highest quality and reliability. Unleash the full potential of your communication or broadcast system with these advanced transformers, capable of withstanding challenging environments without compromise.

Wide band 1.5 – 32 MHz
High frequency
Heavy duty
All-weather
Specification
Frequency
Impedance
Power
Insertion loss
VSWR
Balance ratio
Load VSWR
Coaxial connectors
Balance terminals
Temperature range
Weight
High voltage protection
Configuration
Shipping dimensions
Data
1.5 – 32 MHz
See table below
20 kW average + 100% am modulation
Less than 0.2 dB
Less than 1.2:1 (2 – 30 MHz), Less than 1.3:1 (1.5 – 32 MHz)
Greater than 26 dB
2.5:1 max.
1 5/8″, 3 1/8″ EIA
Alumina ceramic M12 thread
-40ºC to +55ºC
110kg gross
Arcing horns and internal static drain
Cast aluminium case (LM25). Hermetically sealed. Epoxy paint finish.
700 x 600 x 500 mm approx.

Balance Impedance (Ohm)

Unbalanced impedance (ohm)
50
75
100
200
300
370
450
600
50
HF200-55
HF200-57
HF200-510
HF200-520
HF200-530
HF200-537
HF200-545
HF200-560
75
HF200-75
HF200-77
HF200-710
HF200-720
HF200-730
HF200-737
HF200-745
HF200-760

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