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stevejq
Antenna-Theory.com Newbie
Joined: 13 Aug 2019
Posts: 1
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 Posted: Tue Aug 13, 2019 7:33 pm Post subject: Making VNA measurements on a balanced system |
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I’d like to make measurements on a pair of center-fed dipole antennas I have in my back yard. One antenna is about 130ft in total length, the other is about 65ft in total length. Half of each antenna is connected to a common center insulator. Six hundred ohm open wire transmission line connects the center insulator to feedthru insulators on the wall of my house. Inside the house, about 12ft of 300 ohm open wire transmission line connects the feedthru insulators to the radio equipment.
How can I interface a 50 ohm unbalanced VNA at the radio equipment end of the 300 ohm transmission line to make measurements on this balanced transmission line/antenna system over the 1.8-30MHz frequency range? |
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dl2jmb
Antenna-Theory.com Newbie
Joined: 25 Jul 2019
Posts: 5
Location: Cologne, Germany
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| Posted: Fri Nov 01, 2019 2:20 pm Post subject: |
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| Use a transformer 1:1 |
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