Check the listing for details. MEF-130-LP. Color: white, Condition: New. Listed at 98.00 USD. MEF-130-LP MEF-130-LP Multi-Band End Fed Half Wave Antenna Transformer 56:1 Ratio Features core equivalent to 2.4-inch ferrite core and very low average Insertion loss ~0.4dB This is an End-Fed Half-Wave antenna (EFHW) transformer covering 160/10m amateur bands or any frequency 1-30MHz. It transforms high impedance ~2800 Ohms at the end of the half-wave radiator to 50 Ohms and features very low insertion loss. Average insertion loss from 1-30 MHz is ~ 0.4 dB NO TUNER is needed! NO counterpoise is needed! Grounding of cable at the entrance to the home is recommended Frequency coverage: 1-30MHz Power Handling: 250W I.C.A.S 100W continuous in digital modes such as FT8 etc. Polycarbonate housing Hardware: Stainless Steel Connector: Silver/PTFE (Teflon) SO-239 The wire length can be calculated by the following formulas: Length (feet)= 468/Frequency (MHz) or Length (meters)=142.5/Frequency (MHz) Always cut a wire a bit longer to allow tuning to your desired frequency. Tuning depends on the height above ground and nearby objects. There are so many ways to install the wire and your imagination is the only limit. You can do it horizontally, vertically, sloping, in an inverted “L” shape, Horizontal “L”, in an “inverted “V” shape, etc. Such an antenna will not need radials and in most cases NO Tuner at all. Be a radio amateur and do some experiments. Grounding the coaxial cable shield at the entrance to the home is recommended! Long wires tend to collect electrostatic charges (usually when the weather is stormy) which can produce ESD (electrostatic discharge) at the end of your cable and damage your equipment. The longer wire will give you more harmonic-related resonances, For example, Half Wave wire for 80m or 3.5MHz will give you (8) eight resonances up to 30MHz. The VSWR curve might be a bit different at your location. Always aim to put the wire higher and leave it a bit longer at the end to tune it at the desired frequency. The EFHW instruction manual is available on the FAQ. MEF-130-LP MEF-130-LP Multi-Band End Fed Half Wave Antenna Transformer 56:1 Ratio Features core equivalent to 2.4-inch ferrite core and very low average Insertion loss ~0.4dB This is an End-Fed Half-Wave antenna (EFHW) transformer covering 160/10m amateur bands or any frequency 1-30MHz. It transforms high impedance ~2800 Ohms at the end of the half-wave radiator to 50 Ohms and features very low insertion loss. Average insertion loss from 1-30 MHz is ~ 0.4 dB NO TUNER is needed! NO counterpoise is needed! Grounding of cable at the entrance to the home is recommended Frequency coverage: 1-30MHz Power Handling: 250W I.C.A.S 100W continuous in digital modes such as FT8 etc. Polycarbonate housing Hardware: Stainless Steel Connector: Silver/PTFE (Teflon) SO-239 The wire length can be calculated by the following formulas: Length (feet)= 468/Frequency (MHz) or Length (meters)=142.5/Frequency (MHz) Always cut a wire a bit longer to allow tuning to your desired frequency. Tuning depends on the height above ground and nearby objects. There are so many ways to install the wire and your imagination is the only limit. You can do it horizontally, vertically, sloping, in an inverted “L” shape, Horizontal “L”, in an “inverted “V” shape, etc. Such an antenna will not need radials and in most cases NO Tuner at all. Be a radio amateur and do some experiments. Grounding the coaxial cable shield at the entrance to the home is recommended! Long wires tend to collect electrostatic charges (usually when the weather is stormy) which can produce ESD (electrostatic discharge) at the end of your cable and damage your equipment. The longer wire will give you more harmonic-related resonances, For example, Half Wave wire for 80m or 3.5MHz will give you (8) eight resonances up to 30MHz. The VSWR curve might be a bit different at your location. Always aim to put the wire higher and leave it a bit longer at the end to tune it at the desired frequency. The EFHW instruction manual is available on the FAQ. &times &times &times &times &times &times &times &times &times &times &times &times &times Tell a friend Visit store Watch now Postage info Click the Postage tab above the listing description for more info Price: $9.99 (local shipping) Click the Postage tab above the listing description for more info! 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