Portable efhw antenna. Portable Tri-Band Vertical Antenna 40/30/20m.

Portable efhw antenna 0 out of 5 stars. 13 dBi (which equals 0. Measure antenna wire 4. Since we're already setup for testing antennas. 1. The coax connector is at one end of the antenna where it is most needed. I also set it up in the field and go through the tuning of the antenna and make a coup Jul 11, 2024 · Discover the Reel POTA-ble End Fed Half Wave Antenna: designed for easy deployment and tuning without a tuner. 5MHz), therefore also resonant on second, third, and fourth harmonics, etc. THE REEL POTA-ble EFHW Antenna is a truly unique, and versatile portable antenna. The EFHW antenna was an so-so performer until grounded and choked at the feedpoint. One goes 66 feet straight up a tree and acts like a vertical. JYR8010-150W Multi-Band End Fed Half Wave Antenna 8 Bands 3. It is not generally a good antenna choice for power levels exceeding 100 Watts. Designed for quick and easy deployment with portable operators in mind. With wire, without, 20m, 40m, etc. Portable or Stationary Multi-Band End Fed Half Wave Antenna/ This is a 250W version of the popular EFHW-8010-1K+ End-Fed Half-Wave (EFHW*) antenna for 80/40/30/20/17/15/12 and 10m bands. Featuring an optimized MEF-130-LP transformer with an average insertion loss of only -0. Please have a look at the resulting A Portable 7-Band End-Fed Half-Wave (EFHW) Antenna document, consisting of more than 50 pages that I promised to several hams for so long. Unlike many END FED antennas on the market, this one does not require the Antenna Tuner to operate. Setup in any end fed configuration you like. Mike, K8MRD, did a great video showing the PackTenna End-Fed Half Wave antenna in action. I want to try some SOTA activations using this EFHW antenna together with the (tr)uSDX Transceiver on SSB. Schmid, HB9EAJ Version 1. The antenna is light, and compact, easy to fit in most Go Bags. It features a 49:1 transformer built in to a reel box. You won’t find a lighter, more portable EFHW or EFRW Matching Unit. This versatile antenna system is prized for its adaptability and high performance across various frequency bands, making it a popular choice among amateur radio operators. Nov 5, 2023 · Long time QRPer. Dec 6, 2021 · Today’s topic is an end fed half wave antennas. 19. With sound engineering most of it’s potential problems can be overcome. So far, I built a “49:1” transformer with 3:22 ratio turns and a 100pF capacitor. Wire Antenna Trap Kit. These single-band and multi-band antennas can be mounted horizontally, vertically, or as a sloper. Portable Short Antenna, Portable HF End Fed Antenna, 1 Jul 24, 2024 · Ham Radio Dude’s portable end fed half wave antenna, the Dudetenna, features a substantial toroid and reinforced radiating wire for 100 watt operation in both digital and sideband modes. Alpha Antenna is amazing and their customer service is off the charts! Thank you Alpha Antenna. It has a mechanical length of 8. 00 U. Apr 24, 2024 · Ham Radio Dude's portable end fed half wave antenna, the Dudetenna, features a substantial toroid and reinforced radiating wire for 100 watt operation in bot The Mosquitos Antenna’s End Fed Half Wave antenna is designed and built for the Portable Operators, the POTA Community, the Emergency Communications Operators, a nd well, just for those that like the Great Outdoors. This 34ft version is for my Car portable set up. Portable No Tune End Fed Half Wave Antenna 80-10m. The Chameleon LEFS 8010 is a lightweight, end-fed half-wave antenna (EFHW) for portable use on 8 shortwave bands. It is a resonant Half wave on 40m (7MHz) therefore also resonant on second, third, and fourth harmonics. This innovative antenna isn’t just another end fed halfwave; it’s designed with a multi-band EFHW (end-fed half-wave) antenna fed at one end (voltage-fed): in this configuration, as with all voltage-fed antennas, the feed-point impedance will be high (on the order of 5000 ohms) and an unun, typically 49:1, will be required to match a 50-ohm system. It is a resonant half-wave on 80m (3. The extra benefits of Portable EFHW Antenna with Tuner 40-15m, & 80m model. I usually pull the antenna up on a 10m / 33ft fibreglass mast. The 1/2-wave vertical antenna is basically a single element end-fed half-wave (EFHW) antenna vertically arranged. It integrates thin coax cable, UNUN and wire in compact winder form. But I'll point out i am referring to the polemical phrase "compromise antenna", which gets thrown around to criticize antennas the speaker just doesn't like. Introducing the Reel POTA-ble EFHW 40-10M Antennas, the ultimate portable antenna for your unique needs. Portable Multi-Band End Fed Antenna 40/30/20m. We start on 80m in the morning, move to 40m when appropriate and then sometimes run on 20m for a bit. Crush DX from the mountain tops like you never have before. With its relatively small size, it can fit in even the smallest pockets of your radio Go-Bags, Yet can be one of your most 10-160 meter end-fed 60-foot long HF Antenna that enables you to use a tuner to achieve a near perfect SWR, with limited efficiency while using a tuner on 160 meters. nl Of course another great thing with these antennas for higher power is that you can use them with an amplifier without needing a big expensive tuner, all I need to do is tune the Acom 1000 making band changes a breeze. 7 MHz No Tuning. Several ways exist to bring the wire’s high impedance feedpoint closer to the desired 50 ohms, including use of a 49:1 or 64:1 unun, which eliminates the need Here is how the ARRL Antenna book introduces the EFHW antenna. Mar 12, 2023 · Luckily, the company that made my 10-80 end-fed half-wave antenna provides a wire drop-in replacement for 15/30-meter bands. Unlike the dipole antenna, which is comprised of two quarter-wavelength wires and fed at its center, the EFHW is a half-wavelength antenna with the coaxial cable for your transceiver attached at one end. Mini UnUnTenna 40-10m Jul 10, 2024 · About half a year ago I made the 80/40/20 m trapped EFHW, where the traps are mostly used to avoid splitted radiation pattern at 20 m band. In this video I show how I built a 100 watt End Fed Half Wave Antenna. For example, I have two EFHW antennas. Written on 23 June 2019 This is based on an article published in Sprat 177 (Winter 2018/19). . Vibroplex acquired the Par EndFedz® antenna product line from LNR Precision in 2019. 1 on 20m but a slighlty less good However, about 2/3 of the total inverted-V signal is lost to ground when compared to a straight EFHW wire at 40 feet; from 6. The Par EndFedz® End Fed Half-Wave ("EFHW") antennas are like a full length half wave dipole antenna, but with an important difference. PART 1. Quality components with a novel design that simplifies the build process. They were asked to choose their ";favourite portable antenna" from: Ground-plane W3EDP Endfed Halfwave Single Band Dipole Random Length Endfed Doublet Linked Dipole Magnetic Loop Multiband Loaded Dipole Other The order the antennas were listed in was 40M 20M 15M and 10M - No Tuner Needed The CHA LEFS 4010 Lightweight End-Fed Half-Wave Sloper by Chameleon Antenna is a versatile, robust, and lightweight HF antenna designed for operators seeking an efficient solution for portable and fixed communications. flexibility in deploying the antenna, both as a portable antenna or a base antenna. But after making this antenna I realized that full wavelength wire in EFHW improves antenna gain in directions across the wire, which is useful for QRP operation, where an extra couple of dB are always handy. 00 Sep 18, 2021 · Below is an experimental QRP version for the portable field antenna kit if used: A 43 Mix toroidal 49:1 (Z) impedance transformer for a high impedance EFHW antenna. 5 inches and double over; Using larger of the ring terminals, pass wire through and loop over ring; Crimp ; Attach the loose end wire to the smaller ring terminal Portable EFHW Antenna. The EFHW (End-Fed Half-Wave) antenna has become popular with portable operators because of its mechanical simplicity. Develop a Portable End Fed Half Wave Antenna Portable and easy to deploy Multiband capability ResonantAntennaResonant Antenna –NoTunerNeeded!No Tuner Needed! Power handling limited by components Ideally run it on 40m through 10m bandsIdeally run it on 40m through 10m bands For theory and discussion try Steve Yates (AA5TB) The ultimate End Fed Half-Wave (EFHW) antenna transformer to support your SOTA, POTA and just plain get-out-and-make-some-QSO’s operations. Like all EFHW antennas, the 1/2-wave vertical has a very high feed-point impedance - on the order of 1500 Ω to 2500 Ω - and therefore requires a matching device to transform this high impedance to one close to 50 Ω. A 1:49 UnUn serves as a matching transformer, which is mounted on a practical winder/rewinder to protect it from the weather. Please let me know if you are interested in a different configuration. This is an End-Fed Half-Wave (EFHW*) antenna for 40/20/15 and 10m bands. It is designed for no tune operation on 40, 20, 15, and 10 meter bands and can be used with a tuner on 30, 17, and 12 meters. I will not quote the whole section covering this antenna but I will pick a simple tuned dipole over an EFHW every single day. Signal reports from ancedotal test suggest the Chameleon Emcomm III portable antenna is about -6dBr from my 130ft Ultimax 80m-10m EFHW. I assume 160m is likely out of the question realistically due to antenna lengths and I don't think 160 is as useful for NVIS anyway if I recall. It is designed as a highly portable wire antenna, easily set up as an inverted V, horizontal, sloper, or in the case of higher frequencies, a vertical radiator. Then I ran some tests with my vna and a 2525 ohms resistor. Of course you're right, and all antennas make compromises, including the dipoles that people say aren't "compromise antennas" ;-). Portable UnUnTenna Plus 40m-10m. 2m / 27ft and a coil for the 30-meter band. Mix 43 is appropriate for the lower HF bands, my primary interest. ” order_by=”sortorder” order_direction=”ASC” returns=”included” maximum_entity_count=”500″] QRPGuys Portable Multi-Band End Fed Antenna – $60 Due to an illness and subsequent surgery, we will be closed until early December. This antenna is the portable 4 band 100 watt from hyendcompany. Portable Tri-Band Vertical Antenna 40/30/20m. Our QRPGuys EFHW Antenna with Tuner is the perfect companion for your 40m-15m or 80m outdoor expeditions, restricted apartment location, or just for fun in the backyard on a pleasant Mar 26, 2020 · The popular End-Fed Half-Wave (EFHW) Antenna is an easily portable, high-impedance (2,000-4,000 ohm) wire antenna that resonates on its fundamental frequency and all harmonics above. I can look at offering different Dec 13, 2023 · ENDTENNA EFHW End Fed Half Wave Portable HF Antenna 40m/20m/15m/10m ad vertisement by ENDTENNA Ad vertisement from shop ENDTENNA ENDTENNA From shop ENDTENNA $ 70. 1. 0 dBd or zero gain). You all know me, so you know I wouldn’t waste your time. Antennas 2 Showing all 2 results. We will open when you see the PayPal buttons appear. End-fed half-wave (EFHW) antennas - capable of giving good results (low VSWR) on several bands above the principal band; Vertical antennas - for one single band, with all-round, low-angle radiation; Having 20m on the antenna is also nice for when I'd like to do POTA etc. Secondarily, it turns out that the EFHW antenna is relatively insensitive to the physical layout of the radiator. 80 thru 10 Meter HF bands. This type of antenna is designed for one principal amateur HF band, usually 80 meters or 40 meters, but typically displays VSWR minima on several higher bands, and can therefore be a good multi-band antenna. This is a hand made EFHW Antenna with a built in 49:1 Transformer. 4 dB (~9% loss) compared to similar products on market with insertion Offering quality HF wire antennas for the preparedness and emergency communications community. We continue our antenna offerings with this single band, 80m-10m end fed half wave wire antenna. EFHW-7510-2K 75-10M band end fed half wave antenna for HAM radio EFHW-7510-2K 2000W Multi-Band End Fed Half Wave Antenna This is an End-Fed Half-Wave (EFHW*) antenna for 75/40/30/20/17/15/12 and 10m bands. His end-fed antennas are incredibly small, thus perfect for portable operations. Just over 300 people responded. In a recent 2014 survey, the end-fed half wave antenna (EFHW) is the world’s most popular antenna for those carrying everything they need for remote operations. This one is an extremely cost-effective, lightweight and easy to build QRP version from DL1DN of QRP Lifestyle on YouTube. The QRPGuys Portable Multi End Fed Half Wave 10-15-20-40-meter Antenna Coastal and SLV ARES Amateur Radio Emergency Service Page | 1 End Fed Half Wave 10-15-20-40-meter Band Antenna Project Build Brief Background of the End Fed Half Wavelength Antenna The End Fed Half Wave (EFHW) antenna is half a wavelength long on the lowest band of operation. This Group is focused around the Reel POTA-ble EFHW Antenna. Technical support via email is the only service available until then. com contributor and supporter, Jonathan (KM4CFT) has designed and started producing ultra-compact end-fed antenna kits (eBay affiliate link). Reel POTA-ble EFHW Antenna. DudeTenna 100+ W EFHW Kit with 75ft Heavy Duty Antenna Wire. Jun 4, 2023 · Tiny Portable EFHW Antenna for bands 40m/20m/15m. 12 dBi down to 2. Design an End-Fed Half-Wave (EFHW) antenna, in either an inverted-L or inverted-Vee form, using a single main support. Jul 7, 2021 · Further, I experimented with small but efficient couplers, adding more bands to the antenna, and much more. 5. Portable CLV Vertical Antenna 40m-10m. I have a packtenna 9:1 random wire antenna and a sotabeams bandspringer midi 60-10m but I believe these can be sort of used on 80m. 1 – July 11, 2021 Figure 1: A typical inverted-L EFHW antenna setup with one bypassable loading coil EFHW (End-Fed Half-wave) dipole: This type of antenna is a half-wave antenna that has one resonant radiating element with an electrical length of one half-wave. That's a lot of loss! That said, any antenna is better than no antenna. EFHW antenna designer. Ultra-lite portable HF and VHF antennas for SOTA, POTA, camping and travel: Repeater Control Systems Station Controllers Adventure Radio Controllers: Proudly powered Find Par EndFedz® Antennas and get Free Shipping on Most Orders Over $99 at DX Engineering! Par EndFedz® Antennas are End Fed Half Wave (EFHW) antennas with the match box coax connection at the end of the wire, for convenient and quick stealth portable operations. Bringing portable ham radio antennas and amateur radio accessories to the next level. Two ultra-light antenna wires made of tinned copper with Teflon coating are available for operating the This is an End-Fed Half-Wave (EFHW*) antenna for 80/40/30/20/17/15/12 and 10m bands. Check out his YouTube channel K8MRD Radio Stuff That way we can find the best antenna for NVIS. Nov 21, 2023 · Hello, I’m trying to build my first efhw antenna. This is incredible for POTA, SOTA and other portable/field operations. 5-29. Mike is operating from the park with a Yaesu FT-891 running 90 watts into the antenna. Now it is my go to antenna thanks to testing of EFHW done by Steve Ellington using and RF ammeter and other nearfield tools. It takes me 7 mins to set up my rig and my first contact was 5000 miles away. The EFHW will remain a popular portable antenna as it is a convenient and flexible antenna configuration. All the measurements were taken during my SOTA activations. Although the 40m and 20m runs end up outside the scope of Ohio NVIS day, we do it to compare antennas for our own portable contesting needs. Portable EFHW antennas for POTA, SOTA, EMCOMM, Preppers, etc. Oct 18, 2014 · I carried out a survey in early 2014 to try to discover which portable HF antenna was most popular. Aug 18, 2022 · DIY Homebrew Linked End-Fed Half Wave (EFHW) Antenna With 64:1 Impedance Transformer (Unun) for 17M, 15M, 12M, and 10M August 18, 2022 by KM1NDY I am convinced that one of the major reasons that the higher frequency HF bands are relatively unused is because 17M and 12M bands are not resonant harmonics of the common 20M or 40M half-wavelength EFHW-4010-1K-Plus™ Multi-Band End Fed Half Wave Antenna. If you’re into portable amateur radio operations, the Reel POTA-ble End Fed Half Wave Antenna might just become your new favorite tool. No ground plane or A Portable 7-Band End-Fed Half-Wave (EFHW) Antenna Stephan M. Whether you’re into POTA, SOTA Field Days, or any other portable situations, our lightweight and easy-to-setup antenna is your perfect companion. About 11km from me I have the “Pilisca” peak at about 1223m altitude ( YO/EC-271 ). So I hope to get some of you in my log . Rated 5. 00 out of 5 $ 120. Portable UnUnTenna 40m-10m. A truly unique, and versatile portable EFHW, designed for quick and easy deployment with portable operators in mind. No matter which selection, a VHF UHF HF dipole or EFHW antenna will provide you with years of quality experiences. Here is the result : I get a nice 50 ohms from 5 to 25 MHz but then it’s a collapse at 28 MHz… Then I connected a 10m antenna wire and measured indeed a good 1. Whether for Parks on the Air (POTA), Summits on the Air (SOTA), or emergency setups, this antenna’s compact size and adaptability make it You make a good point. Add to Wishlist Reel POTA-ble EFHW Antenna BNC $ 120. | Download free 3D printable STL models I have 2 64ft end feds from Alpha Antenna mounted as opposite sloppers that work amazing. Spark Plug is a highly portable End Fed Half Wave Atenna (EFHW) hand-made in the USA. This operator explains it so well and makes it look so easy, I could get interested in building these antennas myself. The Chameleon Antenna is a renowned portable HF antenna system designed for ham radio enthusiasts. Nov 26, 2024 · The Flatlanders end fed half wave is a compact portable antenna with a built in reel for the radiating element. There is also an update at the end. 2 END-FED HALF-WAVE. lypz iqdq oxdrhvx gfypx dhsdz jwk vmonu dgcimfq cynv togik