Mfj fan dipole. The antenna diameter is 2” OD at the bottom, 0.

Mfj fan dipole The Pacific Antenna Dual-Band 20 and 40 Meter Trap Dipole is cleverly designed, durable, works extremely well, and, considering the cost and ease of build, a no-brainer. Authentic glazed ceramic end insulators. See page 63 for more MFJ mounts. MFJ HF Cobweb Wire Dipole Antennas cover multiple bands and are suitable for many restricted space applications. 40 Meters - I can get full 100 W output.  Each handles full legal limit power. Manufacturer Info. Vertical antenna (14 pages) MFJ-1775W 4-Band Rotatable Mini-Dipole Introduction The MFJ-1775W is a mini 14-foot rotatable dipole that is almost invisible from across the street. This is just one that is really, really, bent! You get some advantages and disadvantages -- compared to a straight dipole -- when doing With regard to gain the reviewer merely repeats MFJ's claim in its instruction manual. 250 area flip on the Amp and talk all day. In a fan dipole, if the elements are kept some distance apart they don't interact much and so for many fan dipoles it's effectively several dipoles in parallel. long. Specifically engineered for operation on the 40, 20, 10, and 6 meter bands, these antennas deliver world-class performance by using the whole antenna element on every band. Also most active antennas will benefit with a 20-50' wire antenna placed outside, the built in telescope Another look at the IG Mini VNA software, with the MFJ-225 Antenna Analyzer, hooked to my 5 wire fan dipole. You can mount them high and away from the trees for better performance than a wire dipole. This post is about how to build a 40/20/15 meter half-wave fan dipole antenna. 95 (4. and will pull high in the air with any lightweight cord. Well first off a fan dipole shouldn't have a switch to turn to the different leads. 6 ft. All of the elements of the fan dipole should be connected to the main connector. The old 918 is still good. 00 (3. Lengths, DPD-8040-H, Each Part Number: KEL-11520-D84H Not Yet Reviewed Join our E-mail list & receive your FREE MFJ-3302 book:"73 dipole & Long Wire Antennas". My open wire feed line length is 125 ft, and my MFJ MFJ-1775 ROTATABLE MINI-DIPOLE When MFJ introduced its rotatable, half-wave horizontal mini-dipole for 40, 20, 15, 10, 6 and 2 meters designed for as a fan dipole. MFJ uses heliarc welds on all joints to eliminate excessively I also have a trap/fan dipole. I'd like to eliminate two runs of coax and use a ladder line fed dipole. You can hardly see this mini 14 foot rotatable dipole across the street! Its tiny 7-foot turning radius fits on the smallest roof -- its perfect for town houses, apartments and condos. I Support WorldwideDX. 3) MFJ-1661: 3: 2013-04-24: $129. 1- MHz the antenna had input impedance of 75- Ohm that is the 40/20/10/6m 1. Rotate to null QRM/noise and to focus your signal. MFJ; Ameritron; Hy-Gain; Cushcraft; Mirage; Vectronics; MDS-HAM; I decided to put all three antenna ring elements in the same plane, top and bottom, like a fan dipole. Decided construct a whole new Fan dipole using New MFJ 918 Balun to save any future issues. 4) MFJ-1625 80-6 Meter Window/Balcony Antenna w/ Built In Tuner: 4: 2016-06-25: 199. The MFJ-1775 loading coils are stacked end-on-end on the same boom and top whips are replaced by capacitive hats made up of four short BUILD THIS MULTIBAND FAN DIPOLE FOR ALL BAND HF ANTENNA EXCITEMENT Here is a fairly simple and easy to build multi band horizontal fan type dipole that can be constructed for all band operation from 160 meters up thru 6 meters or even higher. HF radios; mobiles; portables; prog cables-remote kits; Speaker microphones - HT; Alpha Delta Radio Communications, LLC. Designed for horizontal or inverted "V" rated at legal power. I built my SRI dipole for three bands, 80, 40 and 20 and designed it to be as light as possible since there would be no center support, just hanging between two trees. Reply To put it simply, it is a very nice fan-dipole with a 4:1 (300-75 ohm) balun/transformer. The 1:1 Current Balun was designed to replace the center insulator of a dipole antenna. MFJ Enterprises Inc Our Brands: Important Information. Their simplicity of construction, light weight, and fundamental resonance make them ideal single-band antennas. Both have their perks. The center portion is at 12 meters height from the tower stand-off. Other products; R&L Electronics RADIO WAVZ FD403 [FD403] - 40/20/10 DIPOLE W/ 1:1 BALUN MULTI BAND HF BASE ANTENNA . Or, you could throw a z-match in with a short bit of coax running from the radio to Cushcraft Rotary Dipole D-4: Multiband dipole with mast mount. MFJ-2014 – 75/40M Dual Band OCFD Dipole Antenna $ 158. Search. The Off Center Fed Dipole, (often abbreviated as OCF Dipole) is a simple multiband dipole antenna with good performance. 1:1 SWR with internal antenna tuner - 1. The MFJ 1:1 Current Bal. Two 75-meter whips were almost three S-units (about 18 dB) below a half-wave 75-meter dipole (no wonder, since a 75-meter half wave dipole This ladderline runs 150 feet to a 1:1 current balun (e. The issue is they have no shielding in the case. Licensed in 1965 I've had verticals, wire antennas and of course Yagi's. MFJ Mini-Dipole Antennas MFJ-2220 Antenna, Mini-Dipole, 20 Meters, 250 Watts, Each. Coax not included. Here is the link to Sign Up for Our Email List . Includes two HF sticks of your choice I have compared EFHW-8010 (which looks very similar to MFJ) versus full size inverted V wire dipoles (all antennas had their top 14 m off the ground) on 80/40/30/20 m with a WSPRlite beacon. MFJ 40M Mini-Dipole Antenna MFJ-2240: 1: 2019-10-01: 69. Legs 1, 2 – 76. Results were quite interesting: similar on 80 m, slightly lower on 40 & 30 m, rather poor on 20 m. Much easier to put up than my Buddy Pole and equal to my MFJ Big It’s a dipole fed off center with a 4:1 balun at the offset feed point. It extends to a whopping 33 feet -- a full quarter wave on 40 meters! The bottom section is 1 3/4 inches in diameter. Although the coax is physically connected to all the legs at the same time, an RF signal will naturally seek out its own resonance. 0, 3. 00 (5) MFJ-17754: 7: 2022-12-06: 60. 95. I note that I do have an antenna tuner (MFJ Intellituner). 1 = 65. and more. MFJ Ultra-Lite Off-Center Fed Dipole Antennas. Maybe that's too simple, but that balun caught my eye. If you cant do a metric conversion contact MFJ and order a fan dipole that comes in a packet! Whats next? Someone going to complain that he is using the wrong font because of their bad eyes? Reply to a comment by : VK3DWZ on 2012-07-26 Thank you for such a fascinating article, Mr Groveman. 5 ft. MFJ Ultra-Lite Off-Center Fed Dipole Antennas are for 40, 20, 10, and 6 meters and handle 300 watts PEP SSB/CW. The coax and SO-239 connectors have Teflon(R) for maximum insulation and extended life of the product. 5 or better; fed with RG8(?) Rat shack cable (I know, crap cable and all). Its no Wimp! Get 160-6 Meters Coverage and 1500 Watt Operation with a single antenna!This MFJ-2990 is a 43-foot self-supporting vertical antenna that covers 160 through 6 Meters with the use of an antenna tuner. mfj mfj2982. 85 uH, 3907 pF 600W, but lower SWR Tolerance MFJ-998RT - Components same as MFJ-998 ICOM AH-4 - Only works with ICOM radios MFJ ½ Wave Dipole Antennas are center fed and adjustable for the desired operating frequency. These are multi-band half-wave dipole antennas, strung around fiberglass spreaders, into an open-loop. Which relates to them being noise makers not gain makers. I added an impedance matching ‘hairpin’, a 2-inch, 8 turn coil, made with #14 wire, which is I am looking to deploy a 132’ doublet fed with window line. Length 36m, with sealed balun, connector PL, max. i have to choose 4 dipoles made of hamsticks to put The 160/80/40 meter multiband fan dipole (lower right) mounted on the tower! CONSTRUCTION DETAILS: In the photo above, the 160 meter section is on top, 80 meters in middle and 40 on bottom. I keep coming back to a fan dipole. 99; Description: W8AMZ G5RV Jr. 0; Companies. Be the first to review this product . Testing was conducted using a MFJ-249C Antenna analyzer, 20 feet back from the antenna. Use on 160 Meters as Marconi with tuner and ground. 1500 Watts . The fan runs constantly at high speed and is very noisy. The CHA 40-20 FD Fan Dipole Antenna is a high Considering a pair of MFJ's 20m Hamstick and their dipole coupler, interested in anyone's experience compared to endfed (HW and random), buddipole-type, etc, efficiency. I too had fun with tuning Or choose MFJ Enterprises antennas for outstanding high frequency reception and DX operation. 95 (3. Four element 66’ Fan dipole covers 40/20/10/6 with no tuner and 17/15/12 with the tuner. The heatsinks inside the power supply are live. Perfect for low-profile, portable, and The MFJ-1775 is basically a loaded fan dipole. 1 in stock.  It uses 14 gauge copper wire, center insulator is a SO-239 connector enclosed in a custom UV A dipole at a good height above ground has a most of it's RF energy broadside as opposed to a vertical being omni at near equal dispersment Plus this dipole can be rotated for Heavy duty 7-strand, 14-gauge hard copper antenna wire. 0, wavelengths, it will be antiresonant and you will get the Equipment: FT-991, MFJ939, Fan Dipole (40-10) (also tested with an end fed dipole with similar results) Using 14. power load 1000W SSB/CW (300W for 40m/7MHz). MFJ-17754 40/20M Dipole Antennas are shortened, coaxial-fed, 42 ft. There are questions on this forum almost every day about bending the wires of a dipole. These are easy to build, inexpensive and work great! (MFJ Big Ear V dipole up 19′)? Best ever has been a larger horizontal closed loop fed to the MatchBox. The antenna diameter is 2” OD at the bottom, 0. I have a mfj-904 and it works equally as good. The MFJ-1775 is inconspicuous and low profile -- not Join our E-mail list & receive your FREE MFJ-3302 book:"73 dipole & Long Wire Antennas". Step one was to open the PSU up and look for the fan connection. 95; Description: Build your own 80-6 Meter mini-dipole using two HF mobile whips! Mounts on mast up to 11/4” OD. The Alpha-Delta DX-EE is a “fan dipole” design. Highlighted Features. Special Price £159. To follow is a list of possible solutions to this problem: A. mfj2982. Amplifiers and Preamps; Antennas; Antenna Accessories; A G5RV from MFJ about 15 to 18 meters up in the trees, fully horizontal -- nothing special about that as is. Includes two HF sticks of your choice The MFJ-1779B one-half wavelength, single-band, dipole is a center-fed antenna that can be tuned for operation on any frequency between 80 meters and 40 meters. It is made up of 50 Ferrite Core Beads placed onto a 13-inch piece of RG-303 Coax. Same construction as MFJ-17758. Foreign broadcast gone and 7-MHz has never been better! Engineered from the ground up, innovative new antennas by K1 The cobbweb antenna is not a loop antenna, but a group of dipoles (fan dipole) with their wires bent into a square shape. Example: screw in 80,40,20 meter hamsticks and a dual band 2M/440 MHz whip (two on each band) on opposite sides. Now you have an automatic bandswitching 5-band dipole! Rotate it for maximum signal and minimum QRM and noise with a small rotat MFJ 17754 40/20M Dipole Antennas. 5, wavelengths, it will be an ideal match. com Home; Log In . Part Compute the approximate antenna length for the center frequency of the range for which you are trimming–about 7. Giant box fan portable loop antenna (13 pages) Antenna MFJ MFJ-1795 Instructions Manual. 8 to 30 MHz. At the resonant frequency of 50. While functioning as a full-size dipole on 20-meters, it's also an ultra-efficient end-loaded dipole The second Balun was a Radiowavz which gave up after less than a year. Dipole & Halo Loop Antennas $ 264. The 1/4λ transformer ensures that the antenna is resonant in addition to a conventional 2 antennas up, a tri-band beam and a fan dipole. Just got done putting my fan dipole for 40-20-10 up. Trap dipole for 80m, 40m, 20m, 15m and 10m. long dual-band resonant antennas. The fan has a more uniform radiation pattern on the high bands. One will be for 250 watts and one will be capable of 600 Watts. One leg is South by Southwest the other leg is west-northwest oriented. 8 feet and weighs only 3. Each side of the dipole is broken up by a coil that presents a high impedance at 20 meters and acts as a loading coil on 40 meters, allowing the antenna Initially I was considering either a fan dipole or ZS6BKW. 00. The section with the loading coils This rotatable dipole lets you focus your signal in the direction you want so you can work some real DX! Small, low profile, inconspicuous. You're currently reading page 1 Join our E-mail list & receive your FREE MFJ-3302 book:"73 dipole & Long Wire Antennas". Perfect for field day or any time you need to put up a dipole in a hurry, it us MFJ Ultra-Lite Off-Center Fed Dipole Antennas MFJ-2010 Dipole Antenna, Ultra-Lite, Off-Center Fed, Multi-Band, Non-Resonant, 300 W, 14 AWG, 67. About MFJ-2104H - MFJ-2100 w/ 75,40,20,15M 600W Hamsticks Octopus antenna hub turns your ham-sticks into four fully balanced dipoles in minutes! Mix and match any four HF/VHF/UHF bands. Review Summary For : MFJ-347 Dipole Hamtenna Mount; Reviews: 9 MSRP: 19. Right after that you should have 1:1 balun for two big, but connected reasons. Find many great new & used options and get the best deals for MFJ-1775, ROTATABLE DIPOLE, 6-BAND, (40, 20, 15, 10, 6, 2M). Commercial examples of this are Gap, MFJ, HyGain, and Cushcraft "no radial" verticals, as well as Force 12 vertical dipoles. KC3MIO Rating: 2019-08-21; Working with open wire feed line has been really simple. ;-) / JR / The MFJ-1775 is basically a loaded fan dipole. 800-221-7735. No balun. Cut the dipole wire to be a little longer than the computed length. 044 MHz which is way below the 7. Comes with pre-formed mast clamp. The 80 meter wire I have a dipole antenna about 40′ above ground in the center and 20 feet on each end. Replaces your old 75-Meter dipole and adds 40 Meter coverage with up to 9-dBi of powerhouse gain! Rugged 122 ft. Operates 1. This is really just the simple dipole but a bunch of them, all using the same center insulator and feed line. It is fed with ladder-line all the way from my Ten Tec tuner to the dipole. Put chokes on the coax and control lines, essentially "floating" the tuner. Product Manuals Download Prod Long story short, I've got a 40m home-brew dipole on my roof that needs to be tuned. Coaxial Antenna Switches N Type Connector; SO-239 (UHF) Connector; The best dipole antenna ranges from MFJ-1778M G5RV wire antenna to HF 3 Band Fan dipole multi-band antenna. Describe your experience with the Van Gorden PD4010 parallel (fan) dipole 40M-10M and tell us why you give it the rating you did (required). The device was connected directly to the antenna. Archived post. L(feet) = 468 / F(MHz) or L = 468 / 7. Fan Dipole for 20m/40m; Mar 5 - 100 worked! Now Chasing the Review Summary For : MFJ-1984MP EFHW; Reviews: 3 MSRP: $89. fourstringburn W9WDX Amateur Radio Club Member K5KNM. I also have a built in I think I can run the elements in different directions from the 20/40 after the fashion of a fan dipole. 7 ft. If you build a fan dipole, non-hams start complaining about the appearance of the extra wires. Efficiency is very good when the antenna is 0. coax. I am a huge fan of build-it-yourself antennas. Other bands will require a tuner. can i just feed it straight to a balanced tuner (like an MFJ-993B) and be good to go? wire-antenna; antenna-system; feed-line; antenna-tuner; Share. My antenna analyzer showed impedance was way off. I was thinking about coming out of the radio to the amp then to the auto tuner using antenna 1 as an A fan dipole for the final application that is described here would be mechanically complex, and less likely to stay up in an ice storm. The dipoles were cut a few inches longer than the calculated Mini-Dipole 75 Meters Use these inexpensive, lightweight, isolated mini-dipoles when space is limited for temporary or permanent installations. 8) Radiowazv G5RV-E Multiband antenna #5 - the "fan" dipole. Individually pretuned matched traps for each band, 50 Ohm feed, coaxial cable not included. Other useful information Cushcraft World Ranger dipole antennas give bi-directional patterns and rotatable convenience. In the drawing above, it is shown for just four bands, 80 thru 10. 9) Radiowavz Windom 160: 6: 2014-01-11: 125. 5, 1. 95; Description: 300 W 40-10 Meter End-Fed Half-Wave: I'm a huge fan of the dipole. Multi-Band ANTENNA Covering 10m – 40m Simply, Without a Doubt, The Best Built G5RV On The Market This is a very rugged dependable verision of the Original Classic G5RV Jr. MFJ-1769 is a full-size high-effiency 26Â’, 20-15-10-6 Meter full legal limit rotatable dipole that is super low-profile -- almost invisible from across the street! With a 13-foot turning radius and tiny 9 lb. Kills pattern irregularities, RFI, noise. First HF antenna I built was a fan dipole. It weighs just 20 lbs. Pull-tested to Mini-Dipole 6 Meters Use these inexpensive, lightweight, isolated mini-dipoles when space is limited for temporary or permanent installations. If a "Fan Dipole" is possible, and a "Hamstick i'm new to HF and as i posted in a different thread i'm considering an MFJ Octopus, which is effectively a fan dipole. Legs 4, 5 – 53. The lowly dipole has never disappointed me and the MFJ-1984MP is no exception. From Help Tickets to Warranty Information We've Got You Covered!!! Ham Radio 40/20/15 Meter Half Wave Fan Dipole Antenna. MARS frequencies can be greater than 100:1 for an 75m dipole and even for the cross- dipole antenna, as high as 30:1. eHam. which is quite similar to the new "cobweb" dipole antenna Excellent Tri-band Rotatable Dipole Time Owned: 0 to 3 months. Text to 513-868-6399 sales@randl. I've got access to an MFJ-259B tuner through my club (an hour away) or an MFJ-259 from an elmer (an hour away). Taming the MFJ-4125 PSU Fan 2016-May-06 but it is not quiet in the audio range. If you like my videos, please share These two antennas will replace a fan dipole and a California Windom once they are up and properly running. 0, 2. weight, it fits on small roofs, apartments, and condos. BUT FIRST A WORD OF WARNING. MFJ Analyzer (Not the digital one, with the Z meter, just SWR), everything tuned down to 1. at the best online prices at eBay! Free shipping for many products! MFJ, educate your assemblers on this issue to save Hams like myself uneeded risks to remove your product from antenna support structures! The improvements to the dipole included nothing more than rechecking and insuring solid connections inside the traps, a very small drop of epoxe on the screws going into plastic and stainless star washers used at all connections. The MFJ-949E will match on all bands 75M-10M,but after recording all the settings I noticed something unusual. Join our E-mail list & receive your FREE MFJ-3302 book:"73 dipole & Long Wire Antennas". Length, Kit Part Number: MFJ-2010 Join our E-mail list & receive your FREE MFJ-3302 book:"73 dipole & Long Wire Antennas". Improve this question. The formula can also be used to adjust the overall length to cover more or fewer bands and the resulting overall length. 2:1 SWR with MJF-939Y - 2. The ladderline is hanging down freely with nothing near it, ending in another tree to keep the weight off the lines. Only one problem tho', the dimensions mean nothing to MFJ has announced the production of two different versions of the "Octopus Antenna". On trap dipole covers 80, 40, and 15 Meters and the other covers 20 and 10 Meters. Hope you all enjoy, Jeff. MFJ; Ameritron; Hy-Gain; Cushcraft; Mirage; Vectronics; MDS-HAM; Mini-Dipole 30 Meters Use these inexpensive, lightweight, isolated mini-dipoles when space is limited for temporary or permanent installations. Comprehensive Coverage:The HyGain AV-6160 is a 43-foot (13. i have to choose 4 dipoles made of hamsticks to put in this - which will connect to my tuner. I'm not saying it is resonant and that the SWR isn't high on some Tuning my fan dipole and my portable dipole has not been an issue. Operates on 7, 14, 21, and 28MHz. The FT-991 is a fine radio if you want to cover MF, HF, VHF The KL3JM MODIFIED "SRI" MULTIBAND FAN DIPOLE FOR 80 - 40 - 20 Meters . There you have it it is possible to switch antennas on the MFJ-4712 2-Position Remote Antenna Switches over the internet using a ESP8266 WiFi MCU and the MFJ-4712RC Remote Control Box has not been modified in any MFJ-2012 Power-Lite OCF Dipole Antennas work DX stations with ease because the Power-Lite OCF antennas are engineered to launch a powerful, globe-spanning signal. Perfect for low-profile, portable, and QRP operation, these Ultra-Lite antennas weigh less than 2 lbs. Driving the Broadband terminated dipole is a Yaesu ft-817 at 500mw, controlled by wsjt-x on Ubuntu Linux. Their digtal catalog listing now has the notation about being based on my article in the December 2007 issue of QST with my name and call sign. 160-10m, 80-10m or 40-10 meters depending on your available space. Don't waste your your money on these. D40 D4 D3 D3W Frequency 7 MHz 28, 21, 14, 7 28, 2 But the mechanical is very poor (mfj bought Cushcraft), the antena does not stay straight (even with lashing) 30º inclination after first coil. Since I fitted the balun, I have noticed a positive difference whilst using it. 30 MeterSingle band, lightweight, folded dipoles are perfect for MFJ QRP rigs. mfj. 10 MeterSingle band, lightweight, folded dipoles are perfect for MFJ QRP rigs. i'm new to HF and as i posted in a different thread i'm considering an MFJ Octopus, which is effectively a fan dipole. I do most of my operating on those two bands with some 40 meter operation at night. he's looking at a fan dipole in his case - setup should be done in a couple of weeks and I'll check it out. $154. With my faithful home-brew 40 meter folded dipole The base of each whip features a standard ✠- 24 mounting stud for installation on mobile or fixed antenna mounts like MFJÂ’s lip mounts, magnet mounts, tripods and dipole mounts. 0:1 MFJ is known for really shitty soldering, and outright incorrect wiring. The MFJ-1910 Telescoping Fiberglass Mast is 33 feet tall, yet collapses to a mere 3. Directivity Currently, I have a delta loop for 80/40, a fan dipole for 17, 20, and 10, and a single dipole for 15 meters. The 40, 20, 15, and 10 meter sections have loading coils and and radials, on each end. This is a fan dipole that covers 80 meters through 10 meters and will be my primary station antenna This was not the best of tests, but it gives you an idea of how well my two shortwave antennas perform. I also have a MFJ versa tuner IV. Then I realized what I was missing. 266 as an example at 10w on FM: SWR with no tuner (internally or externally): 3. Folded dipoles have some Tuning my fan dipole and my portable dipole has not been an issue. For ¼ Wave verticals, use MFJ-342T or MFJ-344 mounts. MFJ expressly states this antenna has a "3-4 dB gain advantage over ground-independent verticals" - which, I suppose, says more about the relative weakness of "ground-less" vertical antennas, than it does about the strengths of the cob web. You get MFJ ½ Wave Dipole Antennas are center fed and adjustable for the desired operating frequency. The MFJ-2012 is good for what it is but I would not go with that as it is missing two very important bands, 17 and 15 meters. Feeds with 50 Ohm coax. The section with the loading coils comes pre-assembled, but you have to add the radials. 20 Meters - Max 20 W Output 10 Meters - Full output My first thought? Join our E-mail list & receive your FREE MFJ-3302 book:"73 dipole & Long Wire Antennas". 3kw 80-6 with a tuner. Optional Carry Bag: MFJ-6204: Make your field operations even more convenient with this specially designed carry bag for portable antennas. Skip to Main The MFJ-1775 dipole directivity reduces QRM/noise and lets you focus your signal in the direction that you want -- so you can work some real DX. MFJ; Ameritron; Hy-Gain; Cushcraft; Mirage; Vectronics; MDS-HAM; Short coax fed 42 foot long dual band 40/20 Meter dipole antenna. Real Gain: Delivers a 6-dBi ground-rein-forced dipole pattern on the fundamental and a 9-dBi full-wave cloverleaf on the second harmonic. Add coax feedline -- get on the air! Power-Lite™ for 60 and 30 Meters, handles maximum legal limit 1500 Watts PEP CW/SSB. 120" thi Power-Lite™ for 40, 20, 10 and 6 Meters, handles maximum legal limit 1500 Watts PEPCW/SSB. and has a wind load of just 2 square feet. Here is how I set up a RadioWavz 80-4 Ham Radio Antenna. They're light weight and relatively easy to Optional Tripod: MFJ-1918EX: Enhance your setup with a telescopic fiberglass mast equipped with QuickClamps for effortless setup. Let us explore its distinguished features. Low SWR, direct coax feed, 200 Watts. It's very much like building a porcupine, so you need lots of space, vertically and horizontally. On Mon, 27 Jul 2020 19:15:16 +0000 (UTC), "Robert Costa kb6qxm@ [ham-antennas]" <ham-antennas@> wrote: This would be an article that would describe not only the lengths of the each of the fan dipole wires, but the wire spacing to get an antenna that would work on 60/30/17 and 12 meters with low interaction between the bands. You would need likely a 4:1 balun from your coax to the ladder line feeding the dipole. Balun number 3 is a MFJ 918. Antenna [ 2 ] 80-40-20-15 Half Wave Dipole S9+ static on the band scope. 4 wavelengths long or longer. Avoid restrictions of traditional dipoles. Where it's 1. 1 meters) self-supporting A fan dipole for the final application that is described here would be mechanically complex, and less likely to stay up in an ice storm. . So, a GOOD tuner is OK, and likely necessary. GL/ed: Review Summary For : W8AMZ G5RV Jr. turning radius . 00 (4) MFJ-17758 80/40 Meter Dipole Antenna: 9: 2020-05-08: 79. 5-7. The settings for 40M and 20M ½ Wave, 9-Band Rotatable Mini-Dipole Low profile 14 feet . 9155 feet for our example. The antenna was easily matched for good SWR on 10, 12, 15, 17, 20 and 40 meters. dp42. Also, I recommend fitting a balun to any dipole made for HF as it does help to prevent unwanted RF return and reception interference that is often picked up on the feed line. Page 1 Giant Box Fan Antenna MFJ-1784 An Effective Fan Dipole HF Antenna System. 10m-40m Multi-Band HF Dipole Antenna 2Kw; Reviews: 25 MSRP: $38. Next, with a MFJ-269 antenna analyzer, find the frequency with the lowest SWR. Ones that is working will add a 80 meter Coil-loaded element to the end of the 40m element. Antenna, 80 and 40 Mini-Dipole 17 Meters Use these inexpensive, lightweight, isolated mini-dipoles when space is limited for temporary or permanent installations. Having a small garden or none at all, need not be a problem if you want to work DX as I have discovered. 3 pounds! You simply pull out each section and twist to lock. 102 feet long, shorter than 80 Meter dipole. Its great for portable and temp FAN DIPOLE 40-3 40-20-10 W/1:1 BALUN Write Review . Easily The Windom/OCF would exist WITH the G5RV and replace likely the 31' vert and/or the MFJ vertical. Is the 100′ length of ladder-line. Will be pole mounted about 20' up. Cost of an LDG or MFJ autotuner <$200. MFJ PRODUCTS.  Uses glazed ceramic end insulators. g. 95 (4) MFJ-1621 portable antenna: 17: 2024-06-26: 89. 3) MFJ-1780 Box Fan Portable Loop: 4: 2015-03-29: 249. Converted the G5RV to 75m by tossing the balun and ladder line and adding I use it with a MFJ-971, which supposedly can't really make it on 160m, but it does. MFJ-17754 40/20 Meter Dipole Instruction Manual 1 The MFJ-17754 is a two band, 40- and 20-Meter center-fed dipole antenna capable of handling 1500 watts. 5ft. On 40 meters, two whips were about 1-1/2 S-units (about 10 dB) below the half-wave 40-meter dipole. The entire antenna length is used on all three bands. MFJ 1778M G5RV – Best Budget Dipole Antenna. Its total length is 42 feet. AC5WO Mini-Dipole 15 Meters Use these inexpensive, lightweight, isolated mini-dipoles when space is limited for temporary or permanent installations. Antenna, 80 and 40 meter Wire Double Dipole (Fan)with Balun, Assembled, 2kW, 128/65. Note that leg 3 is EZNEC Modeling artifact End heights: MFJ-994 - 24. Lengths, DPD-8040-H, Each Today. But here is the problem: when I create such an antenna with the inverted vees from different bands physically far apart, I get a good result (low SWR in desired part of band), but when I create something that looks a lot more like the fan dipole/vee antennas you see described in MFJ-1774B 40 Meter Folded Dipole: 1: 2023-09-26: $79. Reply reply This description sounds very similar to the MFJ-1777 doublet, which uses a tuner for matching on the 80-10m bands. 133 Watts . I built my SRI dipole for three bands, 80, 40 and 20 and designed it to be as light as possible since there would be no center support, just hanging Find MFJ Folded Dipole Antennas and get Free Shipping on Most Orders Over $99 at DX Engineering! MFJ folded dipole antennas are just about the most cost-effective and useful resonant antenna that a radio amateur can have. Use as inverted vee or sloper to be more compact. This works if the impedance in question is the Ok, people, got a zinger for you to help me out with. i was watching one of Dave Casler's videos (the man has taught me so much), and he made a comment about 15m being a harmonic of 40m Robert . and with the HF fan it was necessary to shorten each dipole a bit so I suppose it would be ideal to have a MFJ-269 or equivalent antenna analyzer. which is quite similar to the new "cobweb" dipole antenna Find MFJ HF Stealth and Portable Antennas and get Free Shipping on Most Orders Over $99 at DX Engineering! Shop All Our Hot Deals! Departments ; Hot Deals; What's New; MFJ Mini-Dipole Antennas MFJ-2220. This antenna can be tuned to either 30 or 40 meters with a front to side ratio of 30 dB for a fast, expansion of band capability. I have an old MFJ 962C transmatch with a built in 4:1 balun. Cushcraft World Ranger dipoles feature high performance traps, heavy-wall tubing, and rugged hardware for years of enjoyment. The antenna shown covers 80, 40, 20 and 10 meters. For dipoles, use two whips with the MFJ-347 dipole mount. With its tiny 7-foot turning radius, it fits on the smallest roof and is relatively new to HF, everything i've done so far has been FT8, and i was super proud of the 20m dipole i built until a branch fell and did epic damage to my house and took out my dipole in the process my MFJ tuner couldn't get my 20m dipole to work 6m, so my plan once the roof is repaired is to make a fan dipole, 20m/6m because i was how poor its performance was until I built a fan dipole for 40-10m (no WARC). Fast delivery Largest product range and availability Professional Support & Consulting ☎ +49 7276 Find MFJ Box Fan Loop Antennas and get Free Shipping on Most Orders Over $99 at DX Engineering! MFJ was able to make their MFJ Box Fan Loop Antennas radiate from 14-30 MHZ nearly as well as a full size dipole by paying special attention to the electrical and mechanical construction of the antennas. New comments cannot be posted and votes cannot be cast. I built the antenna on the ground and tuned all three bands with my MFJ analyzer. The MFJ-1775W is inconspicuous and low profile -- not much bigger than a TV antenna and can easily be turned by a lightweight TV rotator The DIS-71 Discoverer rotatable dipole of low weight and wind surface area easily fits most existing beam installations. Portable folded dipole antenna (8 pages) (8 pages) Summary of Contents for MFJ MFJ-1784. 2 MHz we would You can add as many of these as you would like to a single coax point and make a fan dipole or what's called a multiple band dipole. The MFJ-1775W is inconspicuous and low profile -- not much bigger than a TV antenna and can easily be turned by a lightweight TV rotator (see AR-35). You can operate 6 bands -- 40, 20, 15, 10, 6 and 2 meters -- and run full 1500 Watts SSB/CW on all HF bands! You can hardly see this mini 14 foot rotatable dipole across the street!Its tiny 7-foot turning radius fits on the smallest roof -- its perfect for town houses, apartments and condos. Contains contents introduction and how to order the ebook pertaining to simple and easy hf, vhf and uhf antennas that can be built by the buyer. This is the robust high-power version of the MFJ-2010 with 14-gauge stranded copper wire and porcelain end insulators. 99 Regular Price £199. Full-size on 20 Meters, ultra-efficient end-loading on 40 Meters. DX Engineering carries wire antennas and universal wire antenna kits from the most-trusted ham radio brands. K9MOV 2016-12-04 Warc bands rotatable mini-dipole (17 pages) Antenna MFJ MFJ-1770C Instruction Manual. 5, 2. 1 MHz. About the Z6SBKW/G5RV: In the mid-1980s, Brian Austin (ZS6BKW) ran computer analysis to develop an antenna system that would permit a low Standing Wave Ratio (SWR) for the maximum number of HF bands possible without an antenna tuner to interface with, and a 50-Ohm coaxial cable as the main feed line. Legs 6, 7 – 39. 40/20m dual and dipole with 1:1 balun multi band hf base antenna. Advanced Search. We present to you the HyGain AV-6160, an innovative addition to the realm of vertical antennas. This balun is fed with 150 feet of high quality coax (LMR-400) to an antenna tuner inside the shack. Current thinking is one would forego the 4:1 and use a very short run of low loss high quality MFJ-2014 - 75/40M Dual Band OCFD Dipole Antenna quantity + Add to cart. Hamstick Rotatable Dipole Kits & Categories. 10m – 40m Multi Band Dipole Antenna. radio wavz. It's basically two trap dipoles fed with the same feed line. Yes it makes it an expensive dipole but it works very well. They have fiberglass spreaders and wire elements. Where the dipole is 0. But, given that you're not transmitting I'd say it Mini-Dipole 40 Meters Use these inexpensive, lightweight, isolated mini-dipoles when space is limited for temporary or permanent installations. 0 • $0; Companies Catalog Gift Cards New Products Clearance Product Manuals Newsletters Contact and Support Login. Un-edited. Cushcraft D-3 Tri-band Rotatable Dipole, this one is the original CushCraft driven element from the CushCraft A3S three element Yagi. I use the MFJ 976 tuner with it, and the MFJ 976 does a great job matching my open wire feed line. 66 feet (64 feet, 8 inches). Raise the antenna up in the air to its final position. 99. Not wanting to push my luck with my neighbours, I’m currently using it as a rotatable dipole. . 00 - $150. 8) MFJ-1810T 10 meter telescopic antenna I'm a big fan of the balanced fed dipole. Handles full legal limit power. Similar to the vertical, it works very well on 20 through 10 Meters but MFJ-17758 - 80/40 Meter Dipole MFJ Chameleon CHA 40-20 FD - Fan Dipole Antenna Chameleon . It features high-performance traps, heavy wall tubing, and rugged hardware for years of enjoyment. Antenna [ 1 ] 40-20-15-10 Rotatable Dipole NO static on the band scope. (4. Extremely strong solderless crimped construction. 3 MHz) The antenna will handle full legal limit power. Table of Contents. 2024 WEEKLY SPECIALS; ALINCO. the MFJ-918). $92. It's the perfect solution for transporting and protecting your MFJ-2289.  It uses 14 gauge copper wire, center insulator is a SO-239 connector enclosed in a custom UV resistanat ABS housing. Includes two HF sticks of your choice and MFJ-347 mini-dipole mount. Recommended for the MFJ-1982MP, END FED, 1/2 WAVE, 80-10M, 300W, WIRE ANTENNA. 40, 30, 20, 17, 15,12, 10, 6, 2 Meters . Using the formula to calculate dipole length (468/frequency in MHz), the total length of the dipole would be about 64. The DP-2BDQ is a 40 or 80 Meter dipole antenna with 101 feet maximum length of dipole. Have Your radio and outside dipole antenna Sorry MFJ fan folks. Description of our antenna projects ebook release in pdf file form from N4UJW and KL7JR. Skip to Main Content. Only MFJ has exclusive, isolated dipole elements that let you insert balun or coil up coax to isolate feedline. (3. The auto tuner works good for 80-10 meters but will not tune the dipole for 160 and will not even try on 6 meters. I run both antennas to a MFJ-998 auto tuner. 3) MFJ-1777 All Band Doublet: 8: 2023-09-18: Radiowavz SATURN Series Fan Dipole: 8: 2021-02-09: $350. Cooling Fan; Desktop 1200W; Desktop 600W; Dummy Load; Filter; Interface; Interface Cable; Mobile 500W; Modification Kit; Power Amplifiers; PowerSupply and Power Accessories; PreAmps; QSK; Remote Coax Switch; Octopus antenna hub turns your ham-sticks into four fully balanced dipoles in minutes! Screw in 75,40,20 meter hamsticks and a dual band 2M/440 MHz whip (two on each band) on opposite sides. Top Posts Reddit Find Parts and Accessories dipole antenna center insulator KEYWORD and get Free Shipping on Most Orders Over $99 at DX Engineering! 80 and 40 meter Wire Double Dipole (Fan)with Balun, Assembled, 2kW, 128/65. Part Number: MFJ-2220. Took down the balun and 80/40 fan dipole cuz of a home construction project. Each leg is approximately 134 ft. Would I benefit by building it as a fan dipole with a 20 meter half wave element to get better performance on say 20, 17, 15, 12, 10 meters. I strung the antenna in my attic and hooked it up to my Icom 706 through an MFJ 945E tuner. Reply reply Top 2% Rank by size . 33' feather lite 80-6m wire vertical antenna, 600w mfj-2982 multi band hf base antenna. How about making a "fan" dipole for those three bands? Reply. One separate dipole for each band Dipole OF8STN: On one side, we have the Broadband terminated dipole. I normally am a fan of CC antennas and own or have owned over a dozen over Hello! I currently have an MFJ-2012 dipole, but have more room on my property that I want to utilize with a longer dipole for multi-band Ham HF purposes. Never in my almost 40 years of hamming have I ever been so dissatisfied with a purchase than this dipole from CC (MFJ). net provides recognition and enjoyment to the people who use, contribute, and build the site. The World Ranger Dipole gives bi-directional patterns and rotatable convenience. I use a W2AU/MFJ Balun 1:1 and RG 8. $89. As you can see in photo below this multiband fan dipole install just like a monoband dipole. and i can fit open wire through them. 238 MHz. 1. ANTENTOP- 01- 2021, # 025 Dipole Antenna for the 50-MHz Band Dipole Antenna for the 50-MHz Band By: Igor Grigorov, VA3ZNW Every radio amateur wants fill up any free space by an by MFJ- 259B. Use as horizontal or sloping dipole or The MFJ-1779B one-half wavelength, single-band, dipole is a center-fed antenna that can be tuned for operation on any frequency between 80 meters and 40 MFJ Ultra-Lite Off-Center Fed Dipole Antennas are for 40, 20, 10, and 6 meters and handle 300 watts PEP SSB/CW. DIS-71 Spec The homebrew 40-80M FAN DIPOLE, YES! I would definitely recommend. Just work slowly and Join our E-mail list & receive your FREE MFJ-3302 book:"73 dipole & Long Wire Antennas". Free Shipping; MFJ 1779C 20 to 6M Single Band Dipole Antenna Kits MFJ-1779C. The problem is my schedule is so hectic, I don't know when I'll get around to tuning it, so it's not feasible for me to borrow the gear indefinitely. MFJ; Ameritron; Hy-Gain; Cushcraft; Mirage; Vectronics; MDS-HAM; Fan Dipole Apex Height – 38 ft. Check Recent Price. As you may know from parallel resistors, the resistance of the parallel combination is dominated by the lowest impedance in the group. This Balun has worked fine for about 3 years now. 5kw ocfd powerlite dipole mfj-2012 multi band hf base antenna. Jun 16, 2019 #6 MFJ sells telescoping whips ready to go but you can rig up something for less $. Separate Tuned Wires For Each Frequency – A “fan-dipole” antenna with separate resonant ½ wavelength wires for each frequency can be constructed. A Multi-band Dipole or Doublet antenna system is a single length wire antenna useable on virtually any band where a tuner can provide a match. 0 ft. More posts you may like Related Amateur radio Hobbies forward back. The KL3JM MODIFIED "SRI" MULTIBAND FAN DIPOLE FOR 80 - 40 - 20 Meters . Follow Octopus antenna hub turns your ham-sticks into four fully balanced dipoles in minutes! Mix and match any four HF/VHF/UHF bands. radio wavz dp42. Now you have an automatic bandswitching 5-band dipole! Rotate it for maximum si You can hardly see this mini 14 foot rotatable dipole across the street! Its tiny 7-foot turning radius fits on the smallest roof -- its perfect for town houses, apartments and condos. FAN DIPOLE OR MULTIPLE BAND DIPOLE SPECS: With the Palstar tuner I can tune up on 14. For this example say the frequency is 7. But then a few hams suggested a doublet fed with ladder line. Join our E-mail list & receive your FREE MFJ-3302 book:"73 dipole MFJ HF Cobweb Wire Dipole Antennas. MFJ 1779C 20 to The fan dipole. First, cut the dipole slightly longer to 7. Super heavy-duty solid aluminum construction. com! Feb 11, 2007 2,278 2,289 273 NEW MEXICO. Nice thing about this tuner is it fits anywhere! KK1VT Rating: 2012-11-04; Nice QRP ATU Time Owned: 3 to 6 months. Worked great for many years. To build the largest and most complete Amateur Radio community site on the Internet - a "portal" that hams think of as the first place to go for information, to exchange ideas, and be part of what’s happening with ham radio on the Internet. nlmoqe uxfe tfolqra rql ybtqic trryt vtnof mlosh ymez qtowrkiq