This is theM0CVO 9:1 UNUN. There are three connections on the UNUN, a SO239 to which you connect the coaxial feed line and two machine screws with butterfly wing nuts. To one of these you should connect the longest piece of wire you have available and to the other you should connect a length of wire to earth.
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There are three connections on the UNUN, a SO239 to which you connect the coaxial feed line and two machine screws with butterfly wing nuts. To one of these you should connect the longest piece of wire you have available and to the other you should connect a length of wire to earth.
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Great Unun for long wires, attach any length of wire to the main unit the longer the better, must be used with a good quality ATU due to the high impedance's present on the feeder. Type: 9:1 Unun. Impedance: 50 Ohms.
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9:1 UNUN FOR RANDOM WIRE ANTENNA. The Unun is made by myself using top quality materials. Band coverage is 10mts to 160mts using an internal or external tuner depending on the. No ladder line required as RG58 or Mini 8 coax mil spec will work perfectly.
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9:1 UNUN WITH ANTENNA WIRE. Random wire Antenna. and for a quick easy not so expensive way to get a great working antenna. No ladder line required as RG58 or Mini 8 coax mil spec will work perfectly.
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Great Unun for long wires, attach any length of wire to the main unit the longer the better, must be used with a good quality ATU due to the high impedance's present on the feeder. Type: 9:1 Unun. Impedance: 50 Ohms.
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This obviously would be a compromise on 160 but it does work with an ATU. These work very well indeed, I would suggest PWR is dependent on SWR, if your SWR due to length of wire is above 3 reduce to 150 watts to be safe.
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This versatile 20m end fed long wire antenna covers a wide frequency range from 80m through 6m, making it suitable for operators who want access to multiple bands without multiple antennas. The built-in 9:1 unun simplifies matching via your ATU, while the design supports full use of WARC bands.
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