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Antentop is FREE e-magazine devoted to Antennas and Amateur Radio an

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Two Broadband Symmetrical Transformers

for HF and VHF Bands

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Two Broadband Symmetrical Transformers for HF and VHF Bands: By: Alex Karakaptan, UY5ON, ES4UY, Kharkov, Ukraine

Below there are described two broadband transformers with transformation ratio 1:5 and 1:10. First transformer could match 50 Ohm to 250 Ohm the second one could match 50 Ohm to 500 Ohm. The transformers may be used to feed different types of hi- ohmic antennas, for example, G5RV. The transformers provide symmetrical output. The transformers provide SWR 1.15 AT 144 MHz, 1.1 at 70- MHz, 1.0 at 50- MHz, 1.1 at 3.5- MHz and 1.15 at 1.9- MHz. The transformers do not overheated at 500- Watts power going through....



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Last Updated:

March 29, 2016 10:48

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