The units are housed in a finned cast aluminium tank which provides excellent natural convection cooling. Each casting is subjected to a double vacuum resin impregnation process which ensures complete sealing for the internal low loss silicone cooling oil.
- Wide band 1.5 to 32 MHz
- 10 kW average + 100% AM modulation
- Suitable for communications or broadcast applications
- Very high efficiency
- All weather unprotected operation
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 high voltages.
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 HF100 is a high quality unit suitable for unprotected operation in any environment.
HF100 Dimensional Drawing
Type Designations for HF100 Series and Technical Specification
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Balance Impedance (ohm)
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50
|
75
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100
|
200
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300
|
370
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450
|
600
|
|
|
HF100-55
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HF100-57
|
HF100-510
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HF100-520
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HF100-530
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HF100-537
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HF100-545
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HF100-560
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|
|
HF100-75
|
HF100-77
|
HF100-710
|
HF100-720
|
HF100-730
|
HF100-737
|
HF100-745
|
HF100-760
|
|
| Frequency: | 1.5 – 32 MHz |
| Impedance: | See table above |
| Power: | 10 kW average + 100% am modulation |
| Insertion loss: | Less than 0.2 dB |
| VSWR: | Less than 1.2:1 (2 – 30 MHz), Less than 1.3:1 (1.5 – 32 MHz) |
| Balance ratio: | Greater than 26 dB |
| Load VSWR: | 2.5:1 max. |
| Coaxial connectors: | 7/8″, 1 5/8″, 3 1/8″ EIA |
| Balance terminals: | Alumina ceramic M10 thread |
| Temperature range: | -40ºC to +55ºC |
| Weight: | 60kg gross |
| High voltage protection: | Arcing horns and internal static drain |
| Configuration: | Cast aluminium case (LM25). Hermetically sealed. Epoxy paint finish. |
| Cooling: | Natural convection, silicone transformer oil, pressure relief valve fitted. |
| Shipping dimensions: | 700 x 600 x 500 mm approx. |