40 Meter Hamstick Dipole

I do have to point out that unless you can get a dipole up at least a half wavelength, it's going to be essentially omnidirectional. 05 microvolt on 40 using the HR2510 for the IF. In the tutorial, you'll find out how to make this temporary mount that can be used when going out into the wild or just hanging around your home. Portable HF antenna. Improve Your HT Ham Radio By Adding A Counterpoise Antenna Wire. I will be using Mastrant-P 5 mm rope to support the assy. 05 wavelengths (7 feet) to 4 wavelengths (560 feet) above good ground. Vertical Dipole Portable Base Mobile Alpha Magnetic Loop antennas. Find great deals for 40 Meter Antenna on eBay. MFJ HF Monoband HamTenna whips are available for 10, 15, 17, 20, 30, 40, and 75 meters. It's only about 20 feet high currently, but I hope to get it higher soon. The dipole was modeled at various heights from. I've used the Hamstick dipole on 20 meters quite a bit and recall that I had to do some fiddling to the the dipole length to get it correct. The counterpoise wire is an important part of tuning the antenna. It works great and tunes real nice. That would have been far too. He op erates mainly on 80 and 40 meters. 315 ÷ 4 × 0. My lot is only 9 meters wide and around 13 meters length is available for antennas and wires (behind the house). Those hamsticks at 75M are about 3% efficient as as a dipole maybe 6% total. Let's first calculate what we need. The main category is Mobile antennas that is about mobile antennas. 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 is 130 feet compared to the 16 feet of. The hamsticks were nicely resonant on 20 meters … until they were up at 20′. Previously, I had used a 40-meter hamstick but was very much dissatisfied with the performance and the poor bandwidth. Compare this with a decent quality screwdriver antenna, properly, and solidly, mounted where the ERP is about 5 watts on 80 meters. ó , kdyh kdg \rxu pxowledqg hqg ihg dqwhqqd lqvwdoohg khuh lq 6lqjdsruh iru d ihz zhhnv qrz dqg dp yhu\ sohdvhg , xvhg wkh zluh iurp p\ suhylrxv dqwhqqd zklfk lv ihhw orqj ,w zrunv ehdxwlixoo\ , kdyh lw. I saw an advertisement for the TAK-Tenna and contacted the company to acquire one for the event. I set it up with the whips all of the way out, but was unable to find a resonant frequency. 40 and 80 Meters multiband dipole @ 85 feet long Can you get a spread of greater than 90 degrees with the longer antenna? Efficiency will be down if you can't. Thread two dipole arms vertically and a fully extended whip on top. Figure 4 SWR of the Dipole Antenna for 40- and 20- meter Bands at the 20- meter Band Figure 5 SWR of the Dipole Antenna for 40- and 20- meter Bands from 5 to 19. Over a number of years. The antenna consists of a regular 40 meter dipole using a 1:1 balun at the feedpoint. 2 meter hentenna 2 meter ssb yagi antenna 2 meter slingshot re-visited design a j pole for any band easy 2 meter ground plane + build a 2 meter 5/4 wave antenna the "ll cool j" - 2 meters for a song 2 meter collinear by m3fvb new 2 meter copper tubing slim jim by ke5fxu reduced size 2 and 6 meter yagi's 6 meter rotatable delta loop. We designed and built this antenna to mount just below our tri-bander at about 70' on a crank-up tower. Welcome to the Workman Electronic Products ONLINE CATALOG Solder Accessories, S Meters, SWR Meters, Watt Meters, Power Meters, Pre-Amplifiers, Microphone Test. Mac, AF4PS, FP -51 (Note: This was installed at a previous QTH) I will be the first (or millionth, remember, I'm from FL!) to affirm that the antenna is the determining factor for success when it comes to one's station set-up. We found communication with some of the other participants to be difficult. The system is not terribly bad on 160 meters. I've made vertical dipoles from Hamsticks for 10 through 40 meters with great results. It mounts easily to any mast up to 1/25” diameter, and I use an extendable painter’s pole. 05 wavelengths (7 feet) to 4 wavelengths (560 feet) above good ground. How high you get it in the air does. Low Band Vertical parts list 1 2 1 1 1 1 1 66 feet 1 Buddipole. This makes the 2 Meter Slim Jim antenna a great solution for repeater sites, data and packet stations, APRS, and even every day. Hamstick dipoles. This setup with an ATU allows me to work 40 & 20 Meters. Amatuer Ham Radio Antennas. November 7. 30 Comments wave monopole into a makeshift dipole antenna system. (please see FAQ #3 ). com FREE DELIVERY possible on eligible purchases. I live and travel in a 40 foot diesel pusher and am trying to come up with a small 40 meter antenna I can use when parked. So, I thought I would combine those thoughts and create a multi-band Hamstick Dipole. The 40 meter dipole was loaded with some coils so that I could fit it in the attic. Antron A99 Fiberglass 1/2 wave 18' Vertical Antenna for 10 meters Wire 20 meter Inverted V dipole Wire 40 meter dipole with 1:1 balun End Fed wire 148' with 4:1 balun (going to replace with 9:1 balun. Tripod mounted helical verticals. It's performance compared to the dipole has been very impressive. I wanted a portable, quick to deploy antenna for 40 meters. On 40 meters, two whips were about 1-1/2 S-units (about 10 dB) below the half-wave 40-meter dipole. Overall length 116″. Vertical Dipole Portable Base Mobile Alpha Magnetic Loop antennas. HF Mobile Antennas. Speaking of which, my 20 meter Hamstick, broke. After using verticals for 40 meter and last year a delta loop this year I choose to make a rotatable dipole. The Pro Am Valor hamsticks are recommended because they can be tuned prior to use. The center mast connecting component is the MFJ-347 Double T Pipe Mount. 10m dipole schematics. Tune single sloping and elevated radial for resonance. The table below tabulates the results. (try 160M with this package!) So pretty even the XYL's approve! Free Shipping in USA. One may argue that 560 feet is ridiculous for a 40 meter dipole, but keep in mind that the data can be scaled down to a 10 meter dipole with similar results. Vertical portion is about 70 ft. The 1/4 wavelength 40-meter dipole antenna would normally have a radiation resistance of about 14 Ohms. Workman WHF-20 Hamstick Style Fiberglass Stick Mobile 20 Meter Ham Radio Antenna. The compromise dipole length is 44 feet. Dipole Cousins Inverted V – Only needs one support. I have used this setup in Motels/Hotels with my SW-40+, SST-40 or OHR Explorer for 20M. Page 1 MFJ-17758 80/40 Meter Dipole Instruction Manual The MFJ-17758 is a two band, 80- and 40-Meter center-fed dipole antenna capable of handling 1500 watts. That would have been far too. For 75/80 meters their nothing like a full size 1/2 wave dipole. WA2TAK's Compact 40-Meter Rotary Dipole This is WA2TAK's solution to the problem of installing a 40-meter rotary dipole on a small city lot. I thought long and hard about procuring a commercial offering. -Paper work is included listing lengths of wire needed. meters, 75 kHz of 80 meters and the entire 40-meter band with SWRs under 2:1. He op erates mainly on 80 and 40 meters. My lot is only 9 meters wide and around 13 meters length is available for antennas and wires (behind the house). This is so that I can drive into my garage without having to remove or lower the antenna. A very cost effective way to utilize 2 ham sticks to make a portable dipole, which can be set up at field day, or any occasion, very quickly. Palm sized L match antenna coupler. I have set up a 20-meter dipole outside my house in the garden. (please see FAQ #3 ). The length of the two sides of the dipole leaving from the center is 2. Sloping Dipole Antenna 11 16. The main category is Mobile antennas that is about mobile antennas. To learn how to base-load a common mobile antenna, a 10-meter Hamstick, so that it operates on 4 new bands: 40, 30, 20, and 17 meters, read on. Overall length 116″. I've tried this with a 20 and 40 meter configuration. instructions and tuning tool included. One may argue that 560 feet is ridiculous for a 40 meter dipole, but keep in mind that the data can be scaled down to a 10 meter dipole with similar results. With propagation favoring the lower HF bands this year (160, 80, and 40 meters), you may want a dedicated antenna for those bands, especially 40 meters where daytime and evening time remain fairly good. Dipole Easy and cheap to build, can be made with small gauge wire •20 meters and above or 80 meters and 40 mtr pair. Mine are for 40M. 5 feet (including the coils). Field day 40 on the cheap. It works good on 80-15 meters. I've never run a comparison with a hamstick dipole, but I use a hamstick dipole on 80/40 and I use an MFJ loop on the higher frequences. It needed to be hidden in the big oak tree behind my house. Two 1/4 wave ham sticks in a dipole configuration produce a 1/2 wave dipole antenna. 655 W1EE-R Items For Sale. 1 foot long. (November 30, 2018) I have hung the 135 foot dipole. - A standard / remote tuner at the feedpoint will ease construction and allow operation from 3. Compare the Hamstick / dipole and BP- not a noticeable difference on 20 meters and up. The other design will place the 40-meter outer ends 1′ below the low-band dipole. 05 wavelengths (7 feet) to 4 wavelengths (560 feet) above good ground. 5 feet (including the coils). Design of a 40 meter Vertical. The dipole was modeled at various heights from. One reading at adjustment level and another at operation level. You can use 80 meter hamsticks or 6. Radioteletype is used frequently on this band as well. I live and travel in a 40 foot diesel pusher and am trying to come up with a small 40 meter antenna I can use when parked. Fed at 34% from the end, it uses a single feed wire and can be resonant on more than one band. If you own a ham radio and would like to listen to satellites with your ham radio Diana Eng has a tutorial on how to make your own collapsible Yagi Here are five great ham radio projects from the Make: archive. The 40 meter dipole was loaded with some coils so that I could fit it in the attic. My last portable antenna was two hamsticks in a dipole configuration (here is a great general overview article about hamstick dipoles, from my buddy over at Prepared Ham). MFJ-2640T 40 Meter Base-Loaded Mobile HF Whip. GENERAL: Each TAK-tenna is designed for resonating - ONLY ONCE - on your choice of frequency on the primary band. That would have been far too. 2kw 80/40 m fan dipole multi-band antenna dipole w/ 200' rope / 14 awg - $99. So, the first antenna up was a hamstick dipole set for 20 meters. One reading at adjustment level and another at operation level. My other HF antenna is a homebrew 75 meter dipole fed with 450 ohm ladder from a balanced line tuner orientated east and west. The most common HF bands used for EMCOMM are 40 & 80 meters (one half wavelength on 40 meters is about 66 feet, 132 feet for 80 meters). 80/40 Meter Attic Antena I live in a tightly packed urban neighborhood without much room for antennas. It is not unusual for 80 meter dipoles to be. If one wants best performance possible on ten meters, then 41 feet is the length of choice. The center mast connecting component is the MFJ-347 Double T Pipe Mount. I have used this setup in Motels/Hotels with my SW-40+, SST-40 or OHR Explorer for 20M. The other 2 posts have it right. I had more contacts on 20 than I did on 40, this has not happened in a long time!!. 15M or 17M Dbl. 20, 15, 10 Meter Fan Dipole at 28 feet (8. The table below tabulates the results. P Windom antenna: building and testing. I use a Camera Tripod for support. They feature heavy-duty, solid-aluminum construction for durability and corrosion resistance. A dipole hamstick configuration can be used with the Lakeview # 901 dipole mount. Going to the trouble and expense of building a rotatable 40 meter hamstick dipole is silly unless you can mount it at least 66 feet above the ground. Instructions included. It also supports my 80-160 meter fan dipole and a 40 meter delta loop, along with my B&W multiband folded dummy loader I mean inverted vee. I had thought of bringing my hamstick dipole and mast. Stainless steel and aluminum construction. However, if you purchase a high frequency (HF) radio so you can talk to the world, then you likely don’t have an antenna since most HF antennas would be too large to fit in the box. If you own a ham radio and would like to listen to satellites with your ham radio Diana Eng has a tutorial on how to make your own collapsible Yagi Here are five great ham radio projects from the Make: archive. Amatuer Ham Radio Antennas. I had seen articles about using two Hamsticks as a dipole, and I had seen multiple Hamsticks mounted to a common base to use as multi-band. This answers the call for when you do not have any mast or trees to work with, but still desire 40m contacts. I operate HF and VHF mobile every day. Please click Accept Cookies to continue to use the site. Wire lengths for the 4:1 ratio in models 4130, 4132, 4134, 4932 and 4935. How high you get it in the air does. So I have a multiband hamstick dipole array! HRBE-I think it was the December, 2007, issue of QST that had an article on the "Octopus" antenna made of 4 pairs of mobile whips for 75/40/20/15 meters. ARRL Product Review of the M2 6-Meter HO Loop Antennas. 75 METERS = 57. This setup with an ATU allows me to work 40 & 20 Meters. A very cost effective way to utilize 2 ham sticks to make a portable dipole, which can be set up at field day, or any occasion, very quickly. short verticals). It is not unusual for 80 meter dipoles to be. A dipole hamstick configuration can be used with the Lakeview # 901 dipole mount. That got me thinking. 2 4ghz dipole antenna construction, 160m dipole, uhf 2m vertical dipole antenna, mobile whip antenna dipole, 40m rotatable dipole with fishing pole, 10 meter dipole antenna diagrams, bowtie dipole hf in horizontal plane, rotatable dipole antenna, 160 metre sleeve dipole, bowtie dipole hf in horizontal plane. A decreased noise level of that antenna was noted in the reception mode, probably due to a short-circuited matching transformer. Stainless steel and aluminum construction. 5 to 1 power rating; 2000 2000 2000 2000 watts pep. Last HF antenna I put up was a 40 meter dipole in 1972! Been on VHU/UHF last 10 years of so, gett. But for 40 meters we'll look at a typical element length of 33. 1 aluminum mounting bracket reflector. Given the limitations of a shortened 40 meter dipole, this is a great price for a convenient dipole. - Portable Vertical Antenna for 75m and 40m makes up a compact 28 feet high antenna. are world renown for their unique characteristics in the 40 meter and 20 meter bands. Shortened / loaded 40 meter dipole for attics This morning, I removed from the loft, a pair of nested dipoles for 40 and 20 meters fed with one coax feeder. The 1/4 wavelength 40-meter dipole antenna would normally have a radiation resistance of about 14 Ohms. Hamstick Dipole This is actually two MFJ mobile antennas with a dipole adapter I got at a hamfest. If you're looking for a low cost solution for a portable hamstick antenna pole for your ham radio, then check out this video. We showcase a varied catalog of products ready to ship at competitive pricing. Your article was one of the best that I have found on the internet, short, sweet and right to the point and answered all my questions about a 40 meter dipole without reading a novel!! My antenna will be about 50 feet from the entry to my house and therefore will run underground via sched 40 3″ pipe to allow for future wires. Homebrew Hamstick fan dipole for 75,40,20,10, and 6 meters. 20 meter hamstick mini beam project: 20m Delta Loop: 20m mini loaded dipole, IK2BCP: 20m dipole half sizeantenna, G3YYC: 20 Meter Ground Plane Vertical Antenna: 20m vertical aerial, G4NSJ: 20 meter Vertical with Balun, W8HDU: 20m vertical antenna, PA3HCM: A cubical quad for 20 meter: A 20 Meter Half Square Antenna for QRP Portable Operation, KA1DDB. According to US Army studies, 1/8 th wavelength is the optimum height. Previously, I had used a 40-meter hamstick but was very much dissatisfied with the performance and the poor bandwidth. Lastly, make note of the dipole mounting assembly. Since Valor went under I don't know of anyone who makes a 160 Meter "hamstick" style of antenna so, I made one. 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 is 130 feet compared to the 16 feet of. end to end 14awg. Gigaparts ships for free and was very prompt. I am eager to put it up 85. Two mobile whips for the same band mounted back to back on an extendable mast will give a good account of themselves. 95 ** Free. MFJ-1640T 40 Meter Hamstick Ham Radio Mobile Antenna 250 Watt 3/8x 24 Threaded. Of course antenna performance is critical, keeping the system nimble enough to setup quickly, light and portable can be a challenge. These are closed loops that are one full wavelength long. I support the feedpoint on a push-up painters pole on the rear of an RV trailer and drape the wire over a nearby tree branch. A dipole design for the 20-meter band is an efficient and inexpensive antenna for the novice and veteran ham enthusiast alike. On 40 meters, two whips were about 1-1/2 S-units (about 10 dB) below the half-wave 40-meter dipole. Up to 40 meters it's possible to make these antennas rotatable looking at the size of the antennas (and my backyard). Motorola Maxtrac 6 Meter 40-50 Watt Programmed Mobile. Why? A standard 1/2 wavelength, center fed dipole will work on odd half-wavelength multiples of the designed frequency. 25 lambda 0. An Attic Coaxial-Cable Trap Dipole for 10, 15, 20, 30, 40, and 80 Meters John DeGood, NU3E [email protected] The test was conducted on 160 meters at 37 dbm power level over an approximate 12 hour period starting before local sunset and ending after sunrise. As an example, a 28-31 foot wire will typically allow 40 thru 10 meter coverage and a 43-50 foot wire will provide access to 80 thru 10 meters. 5 to 6 dB improvement as measured on 40m by Rudy Severns N6LF. 40 meters 34. Thankfully, it didn’t tear up the mount, as another Hamstick threaded up tight. 20 meter dipole end fed. These handheld radios which include these bands are usually the first radios most ham operators start off with. 75 METERS = 57. Save 40 meter hamstick to get e-mail alerts and updates on your eBay Feed. Greyline Performance offers a real DX Vertical Dipole plus MFJ 998 RT Remote Antenna Tuner. The 60 meter band or 5 MHz band is a relatively new amateur radio allocation (not strictly a band), first introduced in 2002, that was originally only available in a few countries, such as the United States, United Kingdom, Norway, Finland, Denmark, Irelandand Iceland. on 160 and higher, and the Pacific, including Japan. on the bands of 40/20/17/12/10 meters down to 50 Ohm. I've made vertical dipoles from Hamsticks for 10 through 40 meters with great results. The Buddipole™ - HFportable dipole antenna system, Welcome to the home of the Buddipole™, an hf/vhf portable dipole antenna system which is designed to be modular, versatile, and efficient. I have used this setup in Motels/Hotels with my SW-40+, SST-40 or OHR Explorer for 20M. The Quiet Survivalist- A Preparedness and Survival resource by a disabled combat Veteran. Other Interests Really love First Person Shooter games for the Playstation 3 like Medal of Honor and Call of Duty. For other sizes of mobile ham antennas, adapt the same basic principles outlined here. ) Are you suggesting that such a dipole on > 75 or 40 Meters, will not perform as well as just one of the whips > mounted on an automobile? The radiation resistance of a 75m hamstick is roughly about 0. Also, the dipole elevation can affect the tuning / SWR as well. dimethyl ether dipole moment structure. Homebrew Hamstick fan dipole for 75,40,20,10, and 6 meters. Example: N6HH has 2. Lakeview Carolina Hamstick 10-40 meters I bought this from Lakeview 25 years ago. Table 4 gives us the dimensions and the performance of the array on each band with the 80-meter dipole 50′ above average ground. helically loaded dipole antenna. This is the antenna I use for 30 meters, and occasionally 40 meters. Serbaserbi Sukasuka: The Fan Dipole Fence (FFD) - A multiband antenna Quick, Easy and Cheap Multi-Band Dipole I built a multiband dipole that will work and 10 meters for ham radio. Mine are for 40M. The Isotron Antenna. My 2 meter HT. Various wires to connect everything together. I have many options, none optimal near as I can tell. The length of the two sides of the dipole leaving from the center is 2. The 40 Meter Isotron Antenna. Amatuer Ham Radio Antennas. Issue tuning 40m Hamstick Dipole I have gotten a pair of MFJ hamsticks for 40m and was going to set it up into a dipole on top of a PVC pipe that I use for 2m and 440. I support the feedpoint on a push-up painters pole on the rear of an RV trailer and drape the wire over a nearby tree branch. Wire lengths for the 4:1 ratio in models 4130, 4132, 4134, 4932 and 4935. But is it?. No Radials needed from 80-6M. In testing this antenna array, I initially raised it to about eleven feet above ground. Other Interests Really love First Person Shooter games for the Playstation 3 like Medal of Honor and Call of Duty. In the early days of radio, operating wavelengths were in the hundreds or thousands of meters. For portable operation, I use 2 (Hamstick) Mobile Antennas with an adapter to configure them as a loaded dipole. The 80 meter antenna ends were NW to SE, and the 40 meter antenna ends were NE to SW. It also supports my 80-160 meter fan dipole and a 40 meter delta loop, along with my B&W multiband folded dummy loader I mean inverted vee. Dr-Dipole (Also Known as SAT Antennas) have been building Simple Dipole Antennas for people for many years. I even heard K1BIF on - I didn't know he was a night owl! During day, when I was on 20 meters, I put the 2nd radio on 40 meter FT8 and it kept plugging away, logging stations as I and others ran on 20 meter phone. 00 shipped Pay Pal preferred, email good in QRZ. Delta Fed Dipole Antenna 13 18. homemade folded dipole. Made out of aluminum tubing Uses PVC as an insulator Is 32 feet high. It is very stealthy, and quick to put up and take down. Eaton ETN-LACEB48U03 743172041258. They feature heavy-duty, solid-aluminum construction for durability and corrosion resistance. 5 feet 30. In the process of designing the mount, I came up with the idea to make the assembly foldable for easy transport. It is very stealthy, and quick to put up and take down. meters, 75 kHz of 80 meters and the entire 40-meter band with SWRs under 2:1. Thinner wire is more fragile. 20 meter dipole end fed. center fed dipole with no balun on 11meter band. 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. The MFJ-1775 almost always outperforms the vertical on 15- and 10-meters. The JK401 is a simple Hi-Q coil loaded rotatable dipole, with a small footprint as well giving great performance on 40M. I've used the Hamstick dipole on 20 meters quite a bit and recall that I had to do some fiddling to the the dipole length to get it correct. It works exceptionally well with the FT 817, Elecraft K2 and KX1, IC 703 and other QRP rigs. End fed 6-40 Meter multiband Matchbox HF Antenna • Buy it for assembled with the Balun for $49 from the Honolulu Emergency Amateur Radio Club (EARC). The folks at HRO suggested I purchase 2 hamsticks for 40 meters, configure them as a dipole, and also sold me a bracket for screwing in the hamsticks back to back horizontally and attaching a coax. The fastest way to setup portable as it does not require retuning after it is set and no trees required. Shortened element with high-Q loading coils PTFE insulated and weatherproof. up a regular dipole, something of a more “stand-alone” nature was needed. The 40 meter dipole was loaded with some coils so that I could fit it in the attic. Please note that these resonators require a mobile mast (MO-1/2/3/4) and mount which are all sold separately. HF Mobile Antennas. Certainly not at all the same as horizontal half wave dipole at 70 feet, this can work for those that need to use a compromise antenna. Building an amateur radio antenna for 160 meters is a challenge. Find great deals on eBay for 40 meter dipole and 40 meter antenna. The MFJ-1775 almost always outperforms the vertical on 15- and 10-meters. Since I planned to start with a dipole, the antenna wasn't necessarily intended to be a homage to Jerry Sevick, W2FMI, but it kind of turned out that way. 30 Comments wave monopole into a makeshift dipole antenna system. It includes a light stand (I believe around 12 feet tall), an extension pole (probably around 8′ when extended), a hamstick dipole mount, two 20 meter hamsticks (off-brand), a single 40 meter hamstick (off-brand), a pulley that will …read more. Near Vertical Incident Skywave (abbreviated as NVIS) communications is another way of thinking of HF propagation. Used the 80 dipole for 20 with the LDG-AT1000 tuner. The system is not terribly bad on 160 meters. It also is less displeasing to my lovely wife. It mounts easily to any mast up to 1/25” diameter, and I use an extendable painter’s pole. Feed-point Connector for Inverted V Dipole Antenna Hamstick Dipole set-up at WA0FSE - July 9 2016. I live and travel in a 40 foot diesel pusher and am trying to come up with a small 40 meter antenna I can use when parked. designing linear loaded hatted vertical dipole. 5 to 6 dB improvement as measured on 40m by Rudy Severns N6LF. Well, how about a full-sized half wavelength vertical dipole? It has no radials? EZNEC confirmed that its gain and radiation angle are very similar. magnetic dipole antenna. This is the antenna I use for 30 meters, and occasionally 40 meters. * QST 2004 ARTICLES * December 2004 ANTENNA A Small Portable Dipole for Field Use (uses Hamstick 30- and 40-Meter Trap Dipole Antenna. com is a little boring. Palm sized L match antenna coupler. Quick view. com Okay, an 11 foot 80 meter mobile antenna is something like 0. To learn how to base-load a common mobile antenna, a 10-meter Hamstick, so that it operates on 4 new bands: 40, 30, 20, and 17 meters, read on. Radioteletype is used frequently on this band as well. 40 Meter Heavy Duty Amateur Radio Dipole Antenna - ONE YEAR FREE REPLACEMEN T! 15 Meter Rotating Ham Radio HamStick Dipole Antenna w/ 2 PCF-15 Antennas & Mount. The 40-meter hamstick dipole is doing surprisingly well being it’s close to power lines. 75 METERS = 57. A 3/8x24 trunk lip or 5-inch magnet mount holds it tight and secure. That said, the height is not super-critical, as long as it is below ź wavelength. 10/20/40 Meter Tri-Band Dipole. Stainless steel and aluminum construction. I have a 40 meter size dipole fed with an SGC230 tuner. This was on a high 80 meter dipole with open wire line and KW Matchbox. The dipole was modeled at various heights from. Shortened element with high-Q loading coils PTFE insulated and weatherproof. Its total length is 85 feet. 0 Frequency in Mhz #9112 12 Meter Hamstick 40 39 38 37 36 24. a 2-meter repeater. HF Antennas for HF beginners – 30 Meters and Below 3 Wire diameter is not critical but 12 and 14 seem to be the most common. Gigaparts ships for free and was very prompt. This antenna is made for the DX'er that ís looking for an antenna to work across the globe. Just in time for Field Day 2013… Here is concept antenna you may find worth trying. This necessitates a low angle of radiation from the antennas being used. Cliff Green WA2TMF operates QRP 5 watts with his FT-818 and homebrew 40m vertical and 20m hamstick dipole in Corolla, …. Radioteletype is used frequently on this band as well. Given the limitations of a shortened 40 meter dipole, this is a great price for a convenient dipole. Also Great For Limited Spaces. Anderson, SC 29626. In a word, 20m dipole works well for me. Just today I bought two 40 meter sticks and used the MFJ connector to make a dipole. ) Are you suggesting that such a dipole on > 75 or 40 Meters, will not perform as well as just one of the whips > mounted on an automobile? The radiation resistance of a 75m hamstick is roughly about 0. I am eager to put it up 85. Problem is that I'd like to use one feed point for a multiband one, similar to feeding a multiband wire dipole from one point. These are dipoles made from two helically wound mobile whips mounted back to back. DX OCF WINDOM 80m,40m,20m,10m by RADIOWAVZ Band width: 80M,40m,20m,10m Typically with out a tuner. Meetings are normally held on the first Thursday of each month at 8pm. The difference between a hamstick and a regular dipole is not so bad on 10 or 20 meters, but they are nearly useless on 40 and 75/80. The 1/4 wavelength 40-meter dipole antenna would normally have a radiation resistance of about 14 Ohms. My question is spacing. Not bad for a shortened,. One may argue that 560 feet is ridiculous for a 40 meter dipole, but keep in mind that the data can be scaled down to a 10 meter dipole with similar results. I made a Hamstick Dipole for 75 meters.