HF300 Series – 30kW HF Wide Band Antenna Matching

HF300 Series – 30 kW HF Wide Band Antenna Matching

The HF300 Series are 30 kW average power silicone cooled transformers suitable for communication or broadcast systems.

The transformers are housed in a cast aluminum case, vacuum impregnated with epoxy resin and finished in epoxy paint for added protection. High purity alumina ceramic insulators with arcing horns are fitted as standard. An internal static drain to earth provides additional protection against lightning induced EMFs.

  • Wide band 1.5 to 32 MHz
  • 3 kW average, 12kW PEP
  • All weather solid encapsulated
  • Heavy duty cast aluminum case

For added EMP proof operation, no capacitors are used in the transformer circuit. A wide selection of unbalanced and balanced impedance ratios are available to complement most antenna configurations and enquiries for non-standard arrangements are welcome.

The HF300 is a unit of the highest quality and reliability.

Wide band 1.5 – 32 MHz
EMP protection
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
30 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.
3 1/8″ EIA
Alumina ceramic M12 thread
-40ºC to +55ºC
120kg gross
Arcing horns and internal static drain
Cast aluminium case (LM25). Hermetically sealed. Epoxy paint finish.
1000 x 700 x 550 mm approx.

Balance Impedance (ohm)

Unbalanced impedance (ohm)
50
75
100
200
300
370
450
600
50
HF300-55
HF300-57
HF300-510
HF300-520
HF300-530
HF300-537
HF300-545
HF300-560
75
HF300-75
HF300-77
HF300-710
HF300-720
HF300-730
HF300-737
HF300-745
HF300-760

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