In part one of this series, I covered the use of one brand of commercially available, small transmitting loop antennas, also known as ‘magnetic loops’. Mar 17, 2019 - The SlinkTenna is a compact, quick deploy, portable, Helical Dipole ham radio antenna system. However given the current poor conditions there is not much going on on most of those bands, and so I wanted if possible to also have access to 80m. 10 Watts PEP is the max. 1 balun for this antenna. G7FEK LIMITED SPACE ANTENNA ( Nested Marconi Antenna). While researching compact antenna options I discovered the following rule of thumb: and it is a struggle to make contacts on 80m at night with 100W. Simply mount the antenna 6 feet off the ground (or higher) on any conductive or non-conductive. 5mhz (UK bottom part of 80m). Fed with 450 ohm window line to a DXE 1:1 balun (the most expensive part of the antenna system) and about 8 feet of RG-214 into the shack. due to the typically lower Q of a larger compact inductor. An antenna tuner is. The system is currently composed of a "Mini-Whip" antenna, a homebuilt SDR board (as pictured; see here for background) which samples the entire shortwave spectrum and sends all of this via a gigabit ethernet link to a PC, where a special version of the WebSDR server software processes it. 112 - Novice Vertical Antenna for 80m, 40m, 15m, 10m. Can be used as a off center fed shortwave antenna to provide continuous coverage from 500 kHz to 60 MHz. The primary side (50 Ohm) should have an inductive reactance of at least 4 times the input impedance for a broadband transformer. To have the maximum current high in the air I. It utilizes an internal 9:1 UnUn and a BNC female antenna connector. Stealth antennas for the loft Fig 4. The antenna described here is used by DF2BC who has limited yard space for antennas. Raise each pole individually - a little at a time if necessary, until at the required height. Single feed point requiring no matching circuits. One of the most versatile and inexpensive wire Antenna for 10-80 meter Band. Due to the narrow bandwidth on a wire antenna on 80m you will need to use an ATU. RCA Compact Outdoor Yagi HDTV Antenna with 70 Mile Range. 3:1) on 80m and 40m, and below 3:1 on 20, 15 and 10m. The turn radius is a very compact 6. Delta Loops for HF "You'll love lower noise and relative gain over a dipole's ears" Stephen D. It is a heavy duty QRP/Low Power antenna that uses #14 wire instead of the usual #16 wire used by our other QRP/Low power models. A compact, easy-to-build shortwave antenna The Broomstick Special. The following program will calculate the lengths needed to construct several popular wire antennas. From large‐scale, commercial‐grade enterprise systems to high‐end amateur radio offerings, SteppIR is the leading global HF‐communication solution provider. LDG desktop tuners are perfect for your home shack, but can also be used portable or mobile if the need arises. Thank You very much!. com, eBay, Walmart, Best Buy, Reddit. 111 - Helix Antenna. The antenna appears noisier than the station antenna, however given the low test height of the Tactical antenna this would be reasonable to expect. Moreover both the 40m & 80m antennas appear to contribute fairly equally to the radiation pattern. 40/80m COMPACT HF VERTICAL, 1. End fed antenna 9:1 UnUn. • VK2ABQ may have been the first to publish a design with his "square " antenna. hf antenna In Full Working ConditionAm selling on behalf of a friend who is having a big clear out. 80M 43 ft 13-j218 22. Inside the box, I used 2 strips of copper-clad board as a “bus-bar. The RadioWavz DX (OCF) Windom is ideal for those of you who do not use a tower and beam. The CWA1000 is now supplied with the latest balun. The turn radius is a very compact 6. COGNITIVE HF RADIO WITH TUNED COMPACT ANTENNA. City dwellers sometimes find it difficult or impossible to erect full-size antennas for the lower ham bands, so there is considerable interest in more compact alternatives. Amateur Wire Antennas : Hy Power Off Center Fed. From United States. QST July 2002, pp. C-type antenna 80-160 meters (ideal setup) This is possible as I have a small crank up tower behind the house with that height. While researching compact antenna options I discovered the following rule of thumb: and it is a struggle to make contacts on 80m at night with 100W. The Western HF-10 multiband dipole was born out of Fred Western M0BZI's attempts at working 80m from a small garden. Solve Virtually Any Restricted Space Problem - 40 Meter Isotron only 22 inches x 16 inches x 15 inches!; Easy, Quick, and Simple Installation. 1982hp, end fed horizontal wire ant. Overall length is 66 ft. Its light weight, 6. The 40 Meter Off Center Fed Antenna (OCF40Q) is a great multi-band antenna. How to build a portable, efficient 40 through 10-meter vertical antenna on the cheap. Match is 1. Only 27 feet tall and weighing in at less than nine pounds, it is small and light enough for one person to handle easily without assistance. The antenna set costs US$14. Thank You very much!. Installation is easily accomplished and convenient due the HVU-8 being only ½ the traditional height and weight of HF vertical antennas. Editor's Choice. 5m at the low end. Always check www. American Radio Supply - HamStick Amateur Radio Mobile Antennas Mobile Monoband Vertical HF Ham Stick Antenna Hamsticks Hamstik. This loop really competes with full size dipoles on 40m and consistently outperforms then on 80m and 160m. Our best selling antenna is our 160 meter, ruggedized "half-sloper". 5 MHz through 30 MHz plus 144 MHz. Suitable for CB 27/81; PR 27Gb & 10M Amateur. With Low Profile Tripod and Universal Mount. Now, do I inductively load the antenna on the ground or use a capacitive top hat in the attic? Reading through the ARRL Antenna Book it is clear that capacitive top hat loading is more efficient. - For Technical Information & Help - Bilal Company 137 Manchester Drive Florissant, CO 80816 719-687-0650. By no means is this approach unique, but it is proving to be very reliable, cheap (less than $60 in materials, if purchased) and can easily reach heights of over 150ft. 40m Compact 4-Square Antenna – EA5AVL. Terminated Sloper Antenna. Before getting on 80m though, I built my phase-one 40m loop which worked great and I was happy on 40, 20, 15 and 10m. All the antennas are base loaded with a stainless steel whip and a PL259 fitting (to fit any standard SO239 mount). 40m Mastless NVIS Antenna. An Antenna for Portable Use. Amatuer Ham Radio Antennas. Cushcraft MA-8040V Compact HF 40/80M Antenna MA8040V is a compact self-supporting HF vertical that delivers excellent DX-hunting performance on 80 and 40 Meters. The NVIS antenna described is based on the proven information from the military AS-2259/GR antenna. My Top Five Backyard Multi-Band Wire HF Antennas L. To have the maximum current high in the air I. 3 M long and 5. 64 - Dual-Band Sloper Antenna. 109 - Coax Inverted-L Antenna for 80m. After having marginal results on 17 meters using my Alpha-Delta DX-EE with a tuner, I put up a resonant dipole. HF Yagi, HEXX Beam and Rotatable Antennas. 10m isnt open often these days. The Folded 40m Concept. The set consists of a heavy duty magnetic mount antenna base with 2M RG59, a 9. developed by hams for hams. MultiBanders. The reflector wire improves the signal by about 3 dB over a single wire antenna. Ideas for compact 80m/160m antenna DX. A member of the VK2ABQ "family" of compact antennas, this design is based on a lightweight, wooden "X" frame with two folded and linear loaded wire elements. It can be built in a few hours it will take longer if you really want to make it look pretty ugly versions can be assembled in minutes. 5 MHz) band. I realized that I needed to use inductive loading to cram an 80m antenna into my 10m by 10m roof space. G5RV Multi-Band Antenna The G5RV antenna, with its special feeder arrangement, is a multiband centre-fed antenna capable of very efficient operation on all hf bands from 3. Hassle free! Wide bandwidth and no tuner needed!!!. After the trap there is about 10 meters of wire making one side of the antenna 30 meters long. In other words, the peak radiation at 30 degrees is about the same as that of a half wave dipole, while the null is about 3. Quickly switch bands and eliminate a tuner as one more thing to adjust. HF Electronics bvba is specialist in de verkoop en verhuur van radio apparatuur voor professioneel en amateur gebruik. This antenna is a high performance, full size, full wave, 80m loop antenna. Compact built and light-weight 3-band antenna for 10, 15 and 20m. NOTE: This is not a plug-n-play antenna. Amateur Antennas : The Maldol HVU-8 is a unique and ultra-compact HF, VHF, and UHF antenna developed for confined and restricted space installations like apartments and condominiums or for temporary or portable use. uk 01922 414796, for all your radio needs. The VertiGo 66V will provide exceptional performance on 80m/60m/40m/30m/20m and 17m. The DXE-AOK-80M kit is tunable to operate across a small segment of the 75/80m band with an SWR of 1. Can be used as a off center fed shortwave antenna to provide continuous coverage from 500 kHz to 60 MHz. Three sections in total. Cushcraft MA-8040V Compact HF 40/80M Antenna MA8040V is a compact self-supporting HF vertical that delivers excellent DX-hunting performance on 80 and 40 Meters. For 80M and 160M its doable using an L-network (note the wires will be 130 and 260ft giver or take). A member of the VK2ABQ "family" of compact antennas, this design is based on a lightweight, wooden "X" frame with two folded and linear loaded wire elements. Marking things in meters instead of feet makes doing the math mentally in the field much simpler. net Abstract A coaxial-cable trap dipole antenna installed in the attic provides a surprisingly effective solution to HF operation on the 10, 15, 20, 30, 40, and 80 meter amateur bands at a QTH with restrictive covenants that prohibit outside antennas. 5 GHz due to. These antennas work really well. Re: HF multiband antenna for very small garden A 9:1 un/un, (or Balun if you prefer,) fed via coax at the bottom of the garden & around 20 meters of wire, makes a useable multi band antenna. Rosewill Digital TV Antenna, HDTV Antenna, Super Thin UHF/VHF Indoor Antenna Multi-directional Range up to 35 Miles with 15 ft. Reduce precipitation static and lower background noise with the Tram Amateur Dual-Band Antenna. , 10-80m, 132 ft. 6 wire elements - 2 active on each band. The antenna described here is used by DF2BC who has limited yard space for antennas. The front element is broken in the middle and driven via coax. , great for people like me can't pay for a cable or dish,today days this people charge you a lot of money for a service when you have this antenna that do a great job and you don't have to pay lots of money every month. This antenna covers 65kHz for 160m band, 75kHz for 80m band and the entire 40m band with SWR under 2:1. 10m isnt open often these days. 2 Home Made HIGH POWER Magnetic Loop. net Abstract A coaxial-cable trap dipole antenna installed in the attic provides a surprisingly effective solution to HF operation on the 10, 15, 20, 30, 40, and 80 meter amateur bands at a QTH with restrictive covenants that prohibit outside antennas. Stealth Amateur Radio. shorter means much less efficiency but you can still work if your patient. 66 DXCC entities confirmed on 80M with this antenna. Probably the lightest traps on the market weighing just 40gm (1. pdf Alpha_Antenna_Loop_Jr_user. The 80 metre performance was great, far better than trying to tune up a 40 dipole to work on 80. ANTENNA TRAPS. CP8040 80m, 40m. The SWR on 40m is a little higher than I'd like (1. Hereby extreme mechanical stability and an outstanding optical appearance are achieved. We have held 8AM QSOs daily for about 4 months. The RadioWavz DX (OCF) Windom is a off center fed (OCF) dipole antenna that exhibits outstanding performance on all bands. Here is my home HF antenna. They have an optional counterpoise kit which attaches to the "ground" side of the match unit and improves on the counterpoise provided by the tripod. Frequency can be changed by means of shorting plug. The antenna covers all of the 40M band with an SWR less than 1. It is a compact three-band magnetic antennaIt operates in three amateur short wavelength ranges of 20-40-80m (3. American Radio Supply - HamStick Amateur Radio Mobile Antennas Mobile Monoband Vertical HF Ham Stick Antenna Hamsticks Hamstik The cookie settings on this website are set to 'allow all cookies' to give you the very best experience. Mounting the 80 metre end fed antenna. I cut a 6 foot section of wire out of the loop, half-way around the 40m loop as a daring experiment to give me a halo dipole for 80m. How is it possible that this antenna only will work on 40+80m? In my understanding the 40m length is 1/2λ on 80m and thus will work on multiples of that. Ver2cal'Wire'Antenna' • Actually'a'ver2cally'orientated' resonate'1/2'wave'dipole'with' the'earth'being'the' return ' half' • Due'to'poor'ground' conduc2vity'a. The antenna covers all of the 40M band with an SWR less than 1. I'm enjoying the challenge of 23cm 1296 MHz homebrew antenna construction for SOTA purposes. You need : 1. On HF, one of the factors that determine how far your signal goes is the takeoff angle. A lightweight, high performance, extremely portable vertical antenna rated at 1500 watts key-down with fully manual operation (no electrical power or controller required). It is made with very high quality materials and the. 160m/80m loaded vertical antenna. 95 each All information, images, and documents on this website are the sole property of Cushcraft Any reuse or redistribution of the contents of this website are strictly forbidden without authorization from Cushcraft. Fast & Free shipping on many items! Cushcraft MA-8040V Compact HF 40/80M Antenna. Before getting on 80m though, I built my phase-one 40m loop which worked great and I was happy on 40, 20, 15 and 10m. These trap the centre of the antenna off allowing it to operate as a full size 40m dipole. An End Fed Halfwave Antenna for Portable Ops I’m a very casual operator, and an even more casual portable operator. Model QCB-1 Ultra-Minature CB Quad Antenna MQ-26 Hybrid Quad Compact 2 element 6 bands 20,17,15,12,10 and 6 meters with tuner B-246 Compact 2 element 6 bands 40,20,17,15,10,6 and 12 meters with a tuner. 2 active elements each band. It's patented folded design allows for a 40% reduction in size with only a 0. LDG desktop tuners are perfect for your home shack, but can also be used portable or mobile if the need arises. How to build a mono band 80 meter 1/2 wave wire antenna. >>>Having first established that my effort came close to your results ( base of antenna still at about 3m agl) my "gut" feeling was that T (or maybe capacity since T is really out of the question) loading would improve the match on top band and 80m without significantly altering the loading on the HF bands. You can use five of the same ferrite rings glued together with five turns of coax through the ferrite. The RadioWavz DX (OCF) Windom is a off center fed (OCF) dipole antenna that exhibits outstanding performance on all bands. The antenna isn't really all that long, just 66 feet; The band is often open in the evening; Unlike 80m, which is full of nets, 40m is more open and you can call CQ and hope to get an answer; If you want to play with digital modes (such as radio-teletype or PSK-31), there's a fair amount of activity. Using a slinky as an antenna is nothing new to hams, but the original post on imgur shows some. 2(a): You can see that when erected in a straight line the dipole is quite directional. View the manual for MA8040V View the manufactures page for MA8040V View the eham review page for MA8040V The MA8040V is a compact self-supporting HF vertical that delivers excellent DX-hunting performance on 80 and 40. 5m above the ground at the high end and 0. 1oz), 51gm (1. 0oz), and 90gm (2. 6 Compact, Europe E36 316i 1. Ruggedized version MP1 SUPER ANTENNA, 2 METER ADAPTER, LARGE TRIPOD, GROUND SPIKE MOUNT, TITANIUM SUPER-WHIP, 80 & 60 METER COILs, GO BAGS. HF Electronics bvba is specialist in de verkoop en verhuur van radio apparatuur voor professioneel en amateur gebruik. Just over 300 people responded. A random wire is a compromise portable antenna. This is a "helically wound" wire antenna. It utilizes an internal 9:1 UnUn and a BNC female antenna connector. An Attic Coaxial-Cable Trap Dipole for 10, 15, 20, 30, 40, and 80 Meters John DeGood, NU3E [email protected] 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. 160M Is a Tough Band • Propagation quite variable, signals often not very strong, heavy QRN during the summer –Mostly a nightime band, varies a lot through the night –During the winter, 800 miles or. This allows the antenna to be adjusted for any frequency (within the range) and work near the perfect optimum. EFHW-8010-1K Multi-Band End Fed Half Wave Antenna. This antenna will cover 3. When I look for example at their Dualband HWEF antenna for 40/80m 1200Watt the antenna has a total length of 40m. 3 343 340 MFJ-929 Compact Automatic Antenna Tuner. An antenna tuner is. - by EI9GQ. The system performs well and subjectively, the 80M dipole is less than one “S” point down on transmit, compared to a full sized antenna, although of course the radiation pattern may not be ideal. Andrew Roos, ZS6AAA for a multiband antenna, since it can be easily matched by most wide range antenna tun-ers and will not cause an unacceptably high loss in the coax. What do I mean by “Medium Sized”? Three scenarios come to mind: 1. You can use five of the same ferrite rings glued together with five turns of coax through the ferrite. I decided to build a 80 meter, half wave wire antenna that takes full advantage of the phone portion of the band known as 75 meters, also this antenna will not need a tuner. Great deals on Cushcraft Ham & Amateur Radio Antennas. It can be built in a few hours it will take longer if you really want to make it look pretty ugly versions can be assembled in minutes. 114 - Six-Band Wire-Stub Trap Antenna for 40m-10m. Only one is designed for 40m, and this is one of the priciest ones. Fast & Free shipping on many items! Cushcraft MA-8040V Compact HF 40/80M Antenna. The Rockloop Compact HF Antenna. HF 3-Band antenna 3B-222 for 20m, 15m and 10m band Economical antenna with excellent perform. Vert, 9 HF BANDS,6,10,12,15,17,20,30,40,80M $699. Collapses down to pack in the convenient case for travel. The cookie settings on this website are set to 'allow all cookies' to give you the very best experience. Maximum power:- 100 Watts, PEP. Portable End-Fed 160-10 Meters Dipole Antenna George on 24th Feb 2020 This is the 4th or 5th product that I have purchased 4 or 5 items from ni4l. Bill, W1WAW, and I decided to set up NVIS antennas at our respective locations in northwest Vermont, and to use them to communicate on a daily basis over the two major ridges between us. Buy your Hustler RM-80 80m Standard Resonator from Radioworld. The Comet CHA250BX-II Broadband Vertical Antenna will amazingly cover from 80m to 6m with no gaps! Weighing only 7. 6 Element 2 Band. Resources listed under Antennas for 80 meters band category belongs to Antennas main collection, and get reviewed and rated by amateur radio operators. 3dB reduction in performance compared to a full length vertical. All screws, nuts, washers, U-bolts etc. 160m, 80m, 40m Curtain Zepp Antenna. The matcher box uses a T82-43 Fair-Rite core. It has gain and wave angle comparable to a full-sized ¼λ ground plane antenna with radials. This was due to the fact I have my eye on a compact 5 band SSB/CW rig that covers those bands (the LNR Precision LD-5). Designed for limited spaced applications and ruggedly built for many years of service. By John Portune W6NBC. THIS IS: The Deluxe Tripod Super Antenna, top-of-the-line setup, with All HF Bands 80m-6m and simultaneous VHF 2 meter. Joomla template created with. Only the kindness of my next-door neighbors (who let me use one of their trees for the antenna) kept me on the air. The Wire Size can range from 16 AWG to 12 AWG. It utilizes an internal 9:1 UnUn and a BNC female antenna connector. Our best selling antenna is our 160 meter, ruggedized "half-sloper". It can be used as a rotatable or V type configuration. The mounting arrangement consists of 2 plates – The 1st holding the main crossover poles (1 on top, 1 underneath) and the boom, the 2nd supporting the boom and fixing to a mast. Get the complete kit and get on the air in minutes!…. 116 - Hybrid Vee for 20m, 17m. Quickly switch bands and eliminate a tuner as one more thing to adjust. 8 feet tall and the radials are 71” long and can be mounted 360 degrees around the antenna or. HFpack is dedicated to furthering the state of the art for portable HF antennas and communications. QST October 1998, pp. Welcome to the home of the Buddipole™, an hf/vhf portable dipole antenna system which is designed to be modular, versatile, and efficient. A transmitting antenna couples the power generated by the transmitter to the ether. 6 Element 2 Band. •Need lots of room, keep them away from metal objects like heaters and ducts •Wire antennas can be run near the peak of the roof inside the attic, bent in odd shapes to match the space available. OCT 1998 – QST (PG. 1 RF transformer. 116 - Hybrid Vee for 20m, 17m. Fast & Free shipping on many items! Cushcraft MA-8040V Compact HF 40/80M Antenna. Similar antennas have been around since the 1930s. I have only found a small bit of recent data [ 2 ] comparing an 1. Internal antenna Microprocessor controlled Low battery LED & built-in buzzer alert Tamper protection enhance the security Detection coverage: 8m/110° Power supply: AA 1. The Rockloop Compact HF Antenna. 109 - Coax Inverted-L Antenna for 80m. 3/30/2018: Note: Throwing line for antenna kit will now be 100' of mil grade 1. Antenna tuner is needed on 20 and 17m and to extent the bandwidth on 10m. 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. What do people think of the MFJ 1899T Portable Telescopic HF Antennas MFJ-1899T? Hard to go wrong with a simple resonant length of wire and a multi-balun, mate. ~ Lockport, N. 5-57 MHz, and receive range is 2-90 MHz. uk 01922 414796, for all your radio needs. 8metre (6ft) is recommended height for W2IK ENVIS Dipole. The Rockloop — compact antenna for 10. Free shipping. You would probably have to go with a full length 80m 1/4 wave vertical or about 65ft tall to get a vertical to outperform a low dipole on 80m DX. Welcome to the home of the Buddipole™, an hf/vhf portable dipole antenna system which is designed to be modular, versatile, and efficient. Different models handle RF power levels from 100 to 1000 watts. Dual-Banding your 40m vertical for 15m. A ferrite rod antenna can work well for reception on 160m and 80m. Portable DS1 Vertical Antenna 40m-10m Portable UnUnTenna 40m-10m Portable UnUnTenna Plus 40m-10m Portable Tri-Band Vertical Antenna 40/30/20m Portable No […]. 8metre (6ft) is recommended height for W2IK ENVIS Dipole. 110 - Indoor Compact Loop Antenna for 80m. pdf Array_Solutions_AS-Vee-XXX. This is usually done in the form of an inverted L due to the length (unless you have tall wide spaced trees). This design permits the CobWeb to be mounted at any height up a typical 1. Mounting the 80 metre end fed antenna. The EA5AVL 40M Compact 4-Square Antenna was designed to provide excellent DX communications on the 40m band, utilising readily available components and be relatively easy to construct. A member of the VK2ABQ "family" of compact antennas, this design is based on a lightweight, wooden "X" frame with two folded and linear loaded wire elements. With less than 100 watts, ground mounted, I regularly check in on morning and evening 80M nets. Antenna Mast for your BMW E36 3 Series Compact Part # 65 21 8 362 368 318ti (1995-96) Compact with M42 Engine (E36) 318ti (1996-99) Compact with M44 Engine (E36) European Models E36 E36 316i 1. The Hy Power Off Center Fed Antenna is a very efficient and effective multi band antenna. I am looking for a good portable antenna for QRP with my Yaesu FT-818. The SWR readings quickly show you the actual VSWR measurement. 0:1 SWR is 85 KHz with 8 spokes in the top hat (they only ship 7). Get the complete kit and get on the air in minutes!…. Two stainless steel eye-bolts are used to attach the antenna wires and another to support. Yeah, verticals can be more susceptible to near field vertically polarized noise but on 80m where band noise often dominates that's a bit less of a concern than on higher frequency bands. 95 each with free shipping. #1 HF Portable Vertical Antenna worldwide. Ideal for small gardens and sensitive locations. Further, the curve (ii) illustrates that two modes are resonating at 2. Marking things in meters instead of feet makes doing the math mentally in the field much simpler. Triband antenna 3B-334 3B-334 Triband antenna uses a common feed. In comparison to my vertical Cushcraft AR-6 Ringo and the 53′ Endfed, the Taktenna surprisingly performed a lot better. Specifications. The dipole antenna is an excellent option for many amateur radio applications especially on the HF bands like 80 metres, 40 metres, 20 metres, 15 metres and 10 metres. Attach 40M antenna jumper to 80M extension: Tension outer end of 80M antenna extension. " "Good compact antenna for Ota channels". antennas so antenna tuner losses can be higher under these conditions. Homebrewing a loop antenna is difficult. Quickly switch bands and eliminate a tuner as one more thing to adjust. 270 feet (90+180) long. 5MHz) therefore also resonant on second, third and fourth harmonics, etc. The antenna has a full 300kHz bandwidth on 80m between 3:1 SWR points. You'll also find here many innovative new Accessories for hf/vhf portable antennas. We do not normally stock it. The SWR readings quickly show you the actual VSWR measurement. LDG makes a full line of Baluns and Ununs that allow you to use antennas fed with ladder. Cushcraft Low Frequency VerticalsMA8040V 3. Attic antennas •Many types of antenna can be mounted in the attic IF you don't have Radiant Barrier (Tech Shield). The bottom section is maufactured using 3/8-inch heavy-duty fiberglass rod. The multiband coil version includes a tapped single coil that covers 40-10M. 2 active elements each band. Your feed line is essentially the counterpoise, so a separate one is not needed. (when switch to 3. If you have an attic, garage, workshop, or deck that is a little over 12 in length you can operate on 40 meters through 6 meters with a relatively cheap and easy to build wire antenna thanks. I decided to build a 80 meter, half wave wire antenna that takes full advantage of the phone portion of the band known as 75 meters, also this antenna will not need a tuner. Most of our antennas are 1/2 wave designs so an 80m antenna will be about 40m long, 40m antenna 20m long etc. HF 3-Band antenna 3B-222 for 20m, 15m and 10m band Economical antenna with excellent perform. 5 dBi F/B ~10 dB. I put up a Slinky Dipole for 80m made up of a pair of Slinky toys on each side. 107 - J-Style Antenna. Firstly, bandwidth on 80m is restricted to about 80 kHz at the 2:1 SWR points, and secondly, there will be a reduction of around 1. Maximum Input Power. Reception Range. Since the parallel feedline typically has very little loss even when the SWR is high, the antenna becomes a good multi-band antenna when fed with this type line and used with a wide-range antenna tuner. I could even hear the test Morse transmissions on 3. Antenna performance and 2:1 VSWR bandwidth is site dependent and varies with height above ground and surrounding objects. That is hardly high performance, and the stub destroys harmonic resonances that are normally useful in loops. With just 20. Place a 1:1 Balun on the Antenna end of the Feedline. G7FEK LIMITED SPACE ANTENNA ( Nested Marconi Antenna). The CAROLINA WINDOM® was the first antenna to take advantage of 'VERT™' (Vertically Enhanced Radiation Technique) and this feature continues with the CAROLINA WINDOM® Compact™. I have found that if I can hear them - I can work them. Big 2 1/8" bottom section tapers at the top to 3/8 of inch for flexibility, strength and wide bandwidth. SKU: 00301-80kit Category: Vertical Antennas. Without Radials. In exchange for simplicity and low cost you give up operational space, meaning, the antenna is small and lightweight for storage but when deployed it will take up a lot of linear feet. 00 ** The JK401 is a simple Hi-Q coil loaded rotatable dipole, with a small footprint as well giving great performance on 40M. He uses this antenna efficiently on several bands from 160 thru 20m, but he has three different matchboxes, one for Top Band, one for 80m and one for 40/30/20m. There are some very good 80-meter set designs by stateside hams. The CAROLINA WINDOM® was the first antenna to take advantage of 'VERT™' (Vertically Enhanced Radiation Technique), and this feature continues with the CAROLINA WINDOM® Compact™. 300KHz 2:1 BW on 10-15m; 350KHz on 20m. The Model 545T, and its fixed counterpart the 545F, are omnidirectional, and radiation is vertically steerable. A Simple and Portable HF Vertical Travel Antenna. com, 4/9/12 Introduction Having limited space led to the design of this multi-band antenna array, which has a foot print of approximately 15 feet. Only 1 left. My antenna's name probably reflects the fact that its design is derived from a military model. If erected as high as possible and in the clear, then it can provide excellent performance for remarkably little cost. This shortened easy-to-build vertical, with no-radials, is made from surplus military camouflage poles. The antenna is an experimental compact half-wave vertical antenna on 40 meters ( only stands 2 meters tall). Portable End-Fed 160-10 Meters Dipole Antenna George on 24th Feb 2020 This is the 4th or 5th product that I have purchased 4 or 5 items from ni4l. The aim of any receiving antenna is to convert an electromagnetic wave into a voltage. Fast & Free shipping on many items! Cushcraft MA-8040V Compact HF 40/80M Antenna. Get a strong, clear signal with less noise from 2 meters through 40 meters with your choice of single- and multi-band Yagi antennas with up to 16 elements. I found Cebik's thoughts and Pfeiffer's ideas on loading quads informative. My Favorite 40m "DX" Antenna. Only 27 feet tall and weighing in at less than nine pounds, it is small and light enough for one person to handle easily without assistance. 107 - J-Style Antenna. Single feed point requiring no matching circuits. An antenna tuner is. The Watson 80Plus2 designed by G3OJV and sold by Waters and Stanton is a compact antenna measuring 52 feet in length that is designed to cover the 80, 40 and 20 metre bands. The fields generated by the transmission of power in the antenna elements overlap in the far field forming the radiation pattern of the antenna. Cebik wrote that if you had to bend your doublet, a Z shape was good, but I don’t have enough trees in the right places for this…. It requires no radials and has worked well for me. This antenna build was strongly inspired by the well known PAR end fed antenna. SKU: TITAN DX GAP. It covers the 80 meter through 6 meter Amateur Radio bands and can handle up to 100 watts SSB, 50 watts CW, & 25 watts digital. A Linear Loaded Vertical Antenna for 40m and 80m by PA3HBB As a lot of you will appreciate, to work good DX requires a low angle of radiation from the antenna. Recommended steps to tune this antenna design: 1) Put up the antenna with no L or C and resonate to 3. Performance on bands other than the one the dipole is resonant. 160m/80m loaded vertical antenna. 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. This calculator uses a "K" multiplying factor value of. It utilizes an internal 9:1 UnUn and a BNC female antenna connector. - A standard / remote tuner at the feedpoint will ease construction and allow operation from 3. Looking for more information about multiband performance and impedance matching, I found a very interesting article, "A Compact and Efficient Multiband Beam Based on a Modified W8JK Array" by K5LJ. 115 - Multiband Half-Wave Delta-Loop Antenna. 0 MHz, so it covers the complete 80m band with lots of room to spare. While researching compact antenna options I discovered the following rule of thumb: An antenna may have two of the attributes small, efficient or broadband (work over a wide frequency range without retuning) but never all three. I put up a Slinky Dipole for 80m made up of a pair of Slinky toys on each side. It is basically a transformer loop antenna: it consists of a multi-turn tuned loop and a small feed loop. Once I tuned the antenna for my favorite frequencies, I would later add yellow, white, green and blue enamel marks for the optimum lengths for the 60 meter, 75 RACES, 75 DX and 80M CW bands. Only 1 left! Band: HF. The resulting antenna is not 50% but 33% smaller than the 80 meters version: it measures about 80 cm square, compared to 120 for the 80 meters version. 95 Normally $179. Experiments with 160m antennas. Super Antenna MP1DXTR80 HF SuperWhip Tripod All Band 80m MP1 Antenna with Clamp Mount and Go Bag ham Radio Amateur. A lightweight, high performance, extremely portable vertical antenna rated at 1500 watts key-down with fully manual operation (no electrical power or controller required). So my offering to FDIM 9 will also be a matter of 5: my personal selection of the top 5 HF wire antennas for the backyard and for multi-band operation. Yes! the entire HF and 6m band. My 80m distance record so far is New Zealand also worked in December. the SWR = 12. Each element of a SteppIR antenna consists of lightweight glassfibre tubes, the metallicc band run in these tubes. I chose 58' for Mid 80 Meter Operation. To support an antenna, I have no tower, and only two trees that aren't too close to a house. Model QCB-1 Ultra-Minature CB Quad Antenna MQ-26 Hybrid Quad Compact 2 element 6 bands 20,17,15,12,10 and 6 meters with tuner B-246 Compact 2 element 6 bands 40,20,17,15,10,6 and 12 meters with a tuner. And yes you can bend any half wave antenna (dipole or end fed within limits) into a V, Inverted V, vertical or inverted L to name a few. Once I tuned the antenna for my favorite frequencies, I would later add yellow, white, green and blue enamel marks for the optimum lengths for the 60 meter, 75 RACES, 75 DX and 80M CW bands. jpg Indoor_Compact_Loop_Ant_80m-. Our best selling antenna is our 160 meter, ruggedized "half-sloper". Only the kindness of my next-door neighbors (who let me use one of their trees for the antenna) kept me on the air. If you want it to work properly, you will need a means of measuring SWR, some trial and error, a little patience and at least half-a-brain to build this. Eliminate send/receive tuner loss. 8metre (6ft) is recommended height for W2IK ENVIS Dipole. In stock! Now $179. Super Antenna MP1LXMAX Deluxe Tripod 80m-10m HF +2m VHF Portable Antenna This ham radio antenna is ideal for operators who want a high performing antenna that can be set up and even moved easily. This is an End-Fed Half-Wave (EFHW*) antenna for 80/40/30/20/17/15/12 and 10m bands. Put contact cement on the tooth picks, or match stems before. Antennas include an AM-FM broadcast radio antenna, 1. The above graphic depicts the overall layout of the loop antenna consisting of 558 ft. Internal antenna Microprocessor controlled Low battery LED & built-in buzzer alert Tamper protection enhance the security Detection coverage: 8m/110° Power supply: AA 1. It covers the 80 meter through 6 meter Amateur Radio bands and can handle up to 100 watts SSB, 25 watts digital. 5, 7/14/21/28-29 and 50mhz) six-band vertical antenna (4 pages) Antenna Diamond Antenna CP6 Assembly Instructions Broadband hf dipole antenna compact size (4 pages) Antenna Diamond Antenna CP8040 Operation Instructions. While 1/8th wave works reasonably well, better coverage is obtained if the antenna is mounted at about 1/20th wavelength above ground. It weighs a mere 530 grams (1 lb 4 oz) , and collapses to a very compact 58 cm (1 ft 10"). It is a tiny little receiver, and is just right for carrying around while out of town. 80 Meter Squirt PLUS A Reduced Size Dipole Antenna and Tuner: GENERAL INFO: They say necessity is the mother of invention, and N2CX does it again. 2 Home Made HIGH POWER Magnetic Loop. The matching transformer attaches to the PVC pipe with bungee cord. The two antenna ports have four memory banks with 2500 80M 17. The very respectable 40m and 80m performance of this very small antenna (which has a diameter of roughly 0. The antenna is very compact and has dimensions 490x500x90 the weight of the antenna with cable and packaging of 1 kg. We do not normally stock it. You can also use the 34uH coil of the endfed down this blog to create a compact 3 band atenna of just 12m long. Only 27 feet tall and weighing in at less than nine pounds, it is small and light enough for one person to handle easily without assistance. 5 Interesting observation was the antenna performed well on 6m. Cushcraft MA-8040V Compact HF 40/80M Antenna. The SWR on 40m is a little higher than I'd like (1. End fed antenna 9:1 UnUn. Different models handle RF power levels from 100 to 1000 watts. Moving the feed point slightly away from the middle will give you directional radiation. Rosewill Digital TV Antenna, HDTV Antenna, Super Thin UHF/VHF Indoor Antenna Multi-directional Range up to 35 Miles with 15 ft. Winegard Platinum. Antennas include an AM-FM broadcast radio antenna, 1. In part one of this series, I covered the use of one brand of commercially available, small transmitting loop antennas, also known as ‘magnetic loops’. Mar 17, 2019 - The SlinkTenna is a compact, quick deploy, portable, Helical Dipole ham radio antenna system. 111 - Helix Antenna. To have the maximum current high in the air I. Cushcraft Compact HF Multi-Band Beam 10-20 Meters The MA5B, Compact HF Multi-Band Beam Small Footprint -- Big Signal MA5B, Cushcraft’s multiband HF antenna provides 5-Band operation in a package small enough to mount to a tripod. 160M Is a Tough Band • Propagation quite variable, signals often not very strong, heavy QRN during the summer -Mostly a nightime band, varies a lot through the night -During the winter, 800 miles or more is possible 2 hours before sunset, 2 hours after sunrise. American Radio Supply - HamStick Amateur Radio Mobile Antennas Mobile Monoband Vertical HF Ham Stick Antenna Hamsticks Hamstik. Editors note: Just think, you're on the air on 80 meters with this stealth antenna, and there is a good chance it can be used on more bands above 80 meters with a tuner!. I decided to build a 80 meter, half wave wire antenna that takes full advantage of the phone portion of the band known as 75 meters, also this antenna will not need a tuner. Suitable for CB 27/81; PR 27Gb & 10M Amateur. The antenna would not tune with the ATU on Top Band (160m) – I would have been extremely surprised had it worked. Portable End-Fed 160-10 Meters Dipole Antenna George on 24th Feb 2020 This is the 4th or 5th product that I have purchased 4 or 5 items from ni4l. The antenna wire lengths before trimming are 5. 00 Multiband HF Yagi XR6C - The most compact, highly efficient Ham Yagi available today - InnovAntennas XR6C 3. Low Band Dipole Covers 160-80-40 meters with an overall length of only 100 ft. Only one is designed for 40m, and this is one of the priciest ones. Antenna tuner is needed on 20 and 17m and to extent the bandwidth on 10m. The antenna is an experimental compact half-wave vertical antenna on 40 meters ( only stands 2 meters tall). 66 DXCC entities confirmed on 80M with this antenna. For clarity the spreadsheet begins with a graphic showing the spiral antenna's most important parameters which are: start point, pitch, safe edge, spoke length, and arm length. 0:1 SWR is 85 KHz with 8 spokes in the top hat (they only ship 7). There was a benefit to the losses of the tree and mast. But performance is down about 8-12db on a dipole on 80m. G7FEK LIMITED SPACE ANTENNA ( Nested Marconi Antenna) 80, 40, 30, 17, 15 , 12 m see text for 20 & 10m operation. In stock fast delivery call now. 3B-223 HF 3-Band antenna. You can use five of the same ferrite rings glued together with five turns of coax through the ferrite. 111 - Helix Antenna. Not currently stocked. Cushcraft MA-8040V Compact HF 40/80M Antenna MA8040V is a compact self-supporting HF vertical that delivers excellent DX-hunting performance on 80 and 40 Meters. The following program will calculate the lengths needed to construct several popular wire antennas. multi-band antenna. Schematics for Multiband dipole. 106 - Double-Bazooka Antenna for 80m. Stealth antennas for the loft Fig 4. 5-2″ supporting pole. Single feed point requiring no matching circuits. • Elements were folded toward each other at about the 50% point (1/4 wave spacing required!!). New! the Super Antenna MP1DXMAX - the maximum Go Bag package for portable, base, backpack, and Emcomm. The mounting arrangement consists of 2 plates – The 1st holding the main crossover poles (1 on top, 1 underneath) and the boom, the 2nd supporting the boom and fixing to a mast. Whenever I would go to a sidewalk sale or hamfest I would pick up any components that might someday come in handy to make an antenna tuner. I cut a 6 foot section of wire out of the loop, half-way around the 40m loop as a daring experiment to give me a halo dipole for 80m. Can be used as a off center fed shortwave antenna to provide continuous coverage from 500 kHz to 60 MHz. Comes with an antenna tuner for all bands between 80-10m. On 80m they operate as l. It is an off centre fed dipole, with 10 feet of vertical radiator. 95: Sale Price $159. Ideal for small gardens and sensitive locations. The above graphic depicts the overall layout of the loop antenna consisting of 558 ft. The cobweb antenna meets the requirement nicely - it comprises 5 parallel dipoles bent into a square shape and mounted on a support structure made of fibreglass poles. The CAROLINA WINDOM® was the first antenna to take advantage of 'VERT™' (Vertically Enhanced Radiation Technique) and this feature continues with the CAROLINA WINDOM® Compact™. 6 pounds, makes it very manageable during the installation process and will allow for a simple mast solution. This antenna build was strongly inspired by the well known PAR end fed antenna. The original antenna was designed as a moderately short antenna for the 10 meter band. See more ideas about Ham radio antenna, Ham radio and Dipole antenna. 58khz Eas (electronic Article Surveillance ) Am Security Antenna For Shops' Security , Find Complete Details about 58khz Eas (electronic Article Surveillance ) Am Security Antenna For Shops' Security,Eas Am Antenna,Eas Security Antenna,Electronic Article Surveillance Antenna from EAS System Supplier or Manufacturer-Guangzhou Byglobal Imp. MFJ-1778 G5RV Wire Antenna 80-10 Meters - Authorized Dealer. There are some very good 80-meter set designs by stateside hams. 9 Element Duoband Yagi 17-12m (neues Modell) #N#2 Bander 12-10. I realized that I needed to use inductive loading to cram an 80m antenna into my 10m by 10m roof space. 5 and 7Mhz) My goal is to optimise this antenna it in the real world for 160 - 80 - 40 and 30 M's Today I will make a big 12V relais with hugh contacts to short out the coils for 160M when I want to use it as a 3,5 and 7MHz antenna. Country 100 was RW2A on December 22, 2010. The DXE-AOK-80M kit is tunable to operate across a small segment of the 75/80m band with an SWR of 1. Diamond's new CP5H is a five band (40M, 20M, 15M, 10M and 6M) trap vertical antenna with trap radials. See other listings. The RadioWavz DX (OCF) Windom is a off center fed (OCF) dipole antenna that exhibits outstanding performance on all bands. Joomla template created with. She possesses tremendous sensitivity and selectivity and has a high quality factor. Experiments with 160m antennas I planned to join a 160m SOTA summit-to-summit attempt in April 2017 and so obviously needed a 160m capable antenna that could be carried to the top of a mountain – not so easy at that wavelength. The antenna design would be no easy matter, as 80-meter CW is my favorite band and mode. See that? Even the 12' vertical antenna holds its own, on 80M. com, 4/9/12 Introduction Having limited space led to the design of this multi-band antenna array, which has a foot print of approximately 15 feet. Switching for tx, any conventional antenna will perform - oblivious. Before getting on 80m though, I built my phase-one 40m loop which worked great and I was happy on 40, 20, 15 and 10m. 40/80m COMPACT HF VERTICAL, 1. Get the power of a Super Antenna. 5, 5, 7, Read more. It utilizes an internal 9:1 UnUn and a BNC female antenna connector. I carried out a survey in early 2014 to try to discover which portable HF antenna was most popular. A Disguised Flagpole Antenna QST May 1993, p. 10,15,20m: $629. Quickly switch bands and eliminate a tuner as one more thing to adjust. Our best selling antenna is our 160 meter, ruggedized "half-sloper". Since just before Christmas the UK has been getting battered by storms, normally this isn’t an issue and the antennas tend to stay up without any problem, however 2013 decided to change things a little bit and a couple of days before Christmas in one of the Compact VHF/UHF Setup. Each half is 700mm in length with a 250mm stainless steel tuning spike. 8:1, followed by the 40 m wires then the 80 m wires. Its performance on receive is excellent. 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. Antenna performance and 2:1 VSWR bandwidth is site dependent and varies with height above ground and surrounding objects. This is a compact ten-band shortwave QRP SDR transceiver (1. 3: This five-band loft-mounted antenna has been used at two locations with great results. 8 feet tall and the radials are 71” long and can be mounted 360 degrees around the antenna or. Match is 1. Only 27 feet tall and weighing in at less than nine pounds, it is small and light enough for one person to handle easily without assi. I also have a CW-160 antenna averaging 40 feet high, so that antenna provided a comparative benchmark. developed by hams for hams. 5kW balun are included. Winter Antenna Damage. 66) Welcome to Rentsville, DX. I have no space on my city lot for a K9AY Loop or a Beverage antenna. 160m, 80m, 40m Curtain Zepp Antenna. The antenna tuned successfully from 6-80m bands with SWR below 1. As the length of the antenna is around 2/3 of the span of a half-wave dipole on 80m, there are two compromises. Frequency can be changed by means of shorting plug. All Antennas, Dipoles and End-fed, Portable. Below is a schematic of the basic idea behind this antenna. This antenna uses a 4 to 1 Guanella Current Balun that is rated at 250 watts, all stainless steel hardware, and covers the following ham. pdf AntennasWest_HalfSquare_review_1991. The following program will calculate the lengths needed to construct several popular wire antennas. The DXE-AOK-80M kit is tunable to operate across a small segment of the 75/80m band with an SWR of 1. I wound 10 turns of the 14 gauge wire on a small piece of 1 inch O. You will know What is Top 10 Affordable, Best Inexpensive, Best Cheap Outdoor. CrankIR is a high-performance. Pro Antennas specialises in compact and efficient HF antennas for amateur radio. The antenna has been used very successfully over the 2007-2011 period during the sun spot minimum. Double Extended Zepp Antenna. The bands on this antenna are manufactured with an International bandplan profile. 3:1) on 80m and 40m, and below 3:1 on 20, 15 and 10m. 111 - Helix Antenna. Please click Accept Cookies to continue to use the site. 113 - Stub-Loaded Shortened Dipole for 80m. Winter Antenna Damage. All Antennas, Dipoles and End-fed, Portable. Compact Base Antenna. 32) The Miracle Whip: A Multiband QRP Antenna. Unhappy with the results, he then played around with the overall length and added a balun at the feedpoint. The Isotron Antenna. - 90-100 ft is 3/8λon 80M, 3/16 λon 160M - 160-170 ft is 5/8 on 80M, 5/16 on 160M Radial Systems • Provide a return for the fields and currents produced by an end-fed antenna • The earth is lossy, burns transmitter power • Use enough radials so that fields and current are in copper, not earth • A few resonant radials work if elevated. The typical bandwidth is: 160M - 20kHz • 80M - 40 kHz • 40M - 300 kHz. The stake is now a smaller 6" stake which is easier to deploy. Each of the radials is 41. This antenna build was strongly inspired by the well known PAR end fed antenna. We will order it for you. So my offering to FDIM 9 will also be a matter of 5: my personal selection of the top 5 HF wire antennas for the backyard and for multi-band operation. Attach 40M antenna jumper to 80M extension: Tension outer end of 80M antenna extension. com, 4/9/12 Introduction Having limited space led to the design of this multi-band antenna array, which has a foot print of approximately 15 feet. An antenna tuner is required for this antenna to properly function. Lowell, N1LO Moxon Antenna Projects — 17M and 20M Via KD6WD NVIS I– Near Vertical Incident Skywave Antennas — By Patricia Gibbons – WA6UBE NVIS II – Near Vertical Incident Skywave Antennas Via WB5UDE.
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