HF10 Series – 1kW HF Wide Band Antenna Matching

The HF10 Series of antenna matching transformers are fully encapsulated heavy duty units designed for the most arduous environmental conditions.

The transformers are housed in a cast aluminium 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 and an integral static drain to earth provides additional protection against lightning induced EMF’s.

  • Wide band 1.5 to 32 MHz
  • 1 kW average, 4kW PEP
  • All weather solid encapsulated
  • Fixed station or transportable antenna arrays

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. No compromise has been made to provide a unit of the highest standard of reliability.

Frequency1.5 – 32 MHz
ImpedanceSee table below
Power1kW average, 4kW peak
Insertion lossLess than 0.3 dB
VSWRLess than 1.2:1 (2 – 30 MHz), Less than 1.3:1 (1.5 – 32 MHz)
Balance ratioGreater than 26 dB
Load VSWR2.5:1 max.
Coaxial connectors‘N’ type (Others on request)
Balance terminalsAlumina ceramic M10 thread
Temperature range-40ºC to +55ºC
Weight5kg gross
High voltage protectionArcing horns and internal static drain (NB No internal capacitors fitted.)
ConfigurationCast aluminium case (LM25). Hermetically sealed. Epoxy paint finish.
Shipping dimensions425 x 300x 150 mm approx.
Balance Impedance (ohm)
Unbalanced impedance (ohm) 5075100200300370450600
50HF10-55 HF10-57 HF10-510 HF10-520 HF10-530 HF10-537 HF10-545 HF10-560
75HF10-75 HF10-77 HF10-710 HF10-720 HF10-730 HF10-737 HF10-745 HF10-760

Download the technical data sheet for this product

The data sheet contains:

◉  Complete technical specifications, including input/output, temperature range, frequency, power and more
  Technical drawings and size dimensions

Contact our sales team

Want to learn more about this particular product? Contact our friendly and knowledgeable sales team today. They will be happy to answer any questions you have and advise you on the best solution for your requirements.