By design, ununs are wound is such a manner that they provide little or no RF choking. Power handling? 6. An antenna tuner is required for the 15 meter band. Contributed by John T. (Jack) Downey - K0DTQ. The 10/(15)/20/40 End fed Antenna Kit has a total length of approx. MFJ-1984HP come with 66 feet of wire and cover 40, 30, 20,15, and 10 meters. The end fed feature adds convenience, but does present another issue. More options for deployment under a picnic shelter r oof. EFHW-8010-1K ™ Multi-Band End Fed Half Wave Antenna . The problem with an end fed half wave antenna is that the antenna presents a high impedance, creating a END FED 6 – 40 Meter Multiband HF Antenna. One other note. 5. The feed point of the 10/(15)/20/40 end fed Antenna kit is a … So, one cut for 40 meters for example, can be used on 20, 15 and 10 meters without a tuner.To use it on 30, 12 and 24 meters does require a tuner. No tuning was required-the SWR’s for 40, 20, 15 and 10 were excellent. A long wire antenna that will load up on 80, 40, 20 & 15 meters without an antenna … The end fed feature adds portable convenience, but does present another issue. Probably the best antenna I have ever owned, for years, the PAR (now LNR Precision) 10/20/40 HWEF (EF-10/20/40MKII). Can be fed from the opposite end with virtually the same patterns and gain. I had an LNR 40 through 10 meter end fed tuner and I liked the antenna, but it was a bear to tune. Economy QRP Antenna 80-40-20-15 End Fed w/o a tuner! On the 10, 20 and 40 meter band the antenna can be work without an antenna tuner. END FED 6–40 Meter Multiband HF Antenna Introduction This project produces an inexpensive, multiband, end fed HF antenna matchbox that is quick and easy to setup and use. The end fed feature adds convenience, but does present another issue. One advantage of the end fed half wave antenna over an end fed "random" wire antenna is that it can be used on bands harmonically related to the band it is cut for without a tuner. MFJ-1984HP END FED, 1/2 WAVE, 40-10M, 800W, WIRE ANTENNA End-Fed Horizontal Wire antennas (or EFHWs) cover multiple bands without traps, stubs, or resonators. After reading the reviews on the 4010 I thought I would give it a try. 4. 20 meters. This is an End-Fed Half-Wave (EFHW*) antenna for 80/40/30/20/17/15/12 and 10m bands. End-fed wires resonate on their 1/2-wave fundamental frequency plus all odd and even harmonics above. Since 1:1 match is achieved at the feed point in every installation, no tuner is needed so the antenna can be "remoted" without mismatch loss when using a longer piece of coax. Although not necessary, a 1:1 isolation/choke balun (models, 1110, 1113, 1115 etc.) END FED 6–40 Meter Multiband HF Antenna Introduction This EARC project produces an inexpensive, multiband, end fed HF antenna matchbox that is quick and easy to setup and use. The problem with an end fed half wave antenna is that the antenna at the transmitter end of feedline will stop RF from entering your equipment and reduce receiver noise caused by common mode currents. Unlike many END FED antennas on the market, this one does not require the Antenna Tuner to operate. This project produces an inexpensive, multiband, end fed HF antenna matchbox that is quick and easy to setup and use. For deployment under a picnic shelter r oof, this one does not require the antenna end fed feature convenience! Qrp antenna 80-40-20-15 end fed feature adds convenience, but does present another issue with feet. Plus all odd and even harmonics above, but does present another issue by common mode currents s. 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