MFJ-1838 Description Hide This eight-band (40, 30, 20, 17, 15, 12, 10, 6 Meters) full half-wave and 1500 Watt Cobweb Antenna is perfect for restricted space or portable operation. homebrew cobwebb construction Back. It looked like just the ticket so I copied. MFJ Extends its Cobweb Antenna to 40 Meters: Ask Dave 71 reviews the MFJ cobweb antenna, covering 20 through 10 meters. And the tubes are so inexpensive that you can replace one for mere pocket change. MFJ-1836, 1/2 Wave, 6-Band (20, 17, 15, 12, 10 and 6 Meters) HF Cobweb Antenna. You can buy a complete CobWebb antenna, which can be purchased on-line from the web pages of Steve Webb G3TPW, the designer. The Cobweb is designed to cover five-bands (20, 17, 15, 12, 10 Meters) and is a half-wave open-loop design perfect for restricted space or portable operation. CobWebb 5 band antenna. Note that this is the same as a standard dipole, although a straight dipole will have sharp nulls off each end. Field Testing The MFJ Octopus Antenna | Did It survive the wind? “This time, I’m out in the field (way out in the Arizona desert) Field testing the MFJ Octopus antenna. 8 pounds), blend in with your surroundings while standing tough against nasty. MFJ Cobweb puts your call back on the map! This eight-band (40, 30, 20, 17, 15, 12, 10, 6 Meters) full half-wave and 1500 Watt Cobweb Antenna is perfect for restricted space or portable operation. com in a single category. Related Products MFJ-2206, 06 Meter Mini-Dipole Includes MFJ-347 & 2 MFJ-1606T Hamstick Antennas $49. A stealth piece of wire with the high current section as high as possible (say on a 20 ft. PK's Loop Antennas bring clear & long range AM radio reception for homes and commercial use. I live in a mobile home and my roof line is about 10'-15'. Note Peter's plot of the dipole takes account of the effect of ground reflections which which "fill in" the theoretical nulls off the end of a dipole. This is built on a project in Dec 2007 QST by N1GY. Related Products MFJ-2206, 06 Meter Mini-Dipole Includes MFJ-347 & 2 MFJ-1606T Hamstick Antennas $49. This antenna could fi ll multiple roles for the active amateur who needs to cover many bands with good per-formance from a small package. Red lines are power lines. We do not normally stock it. Unfortunately the tripod mount has received a bad rap over the years simply because of poor installation methods. MFJ Cobweb puts your call back on the map! This eight-band (40, 30, 20, 17, 15, 12, 10, 6 Meters) full half-wave and 1500 Watt Cobweb Antenna is perfect for restricted space or portable operation. The Cobweb is designed to cover five-bands (20, 17, 15, 12, 10 Meters) and is a half-wave open-loop design perfect for restricted space or portable operation. Tues Nov 28 8 PM central join Martin F. com MFJ-1835H Cobweb antenna review (high power version 1. With the view to establish a quick and easy multi-band antenna deployment for portable and camping operations a simple long wire antenna with an earth or earth plus counterpoise arrangement with a 9:1 voltage unun including a tuner or simply with a tuner is one possible solution. Buy MFJ-939 Plug & Play 200W Auto antenna Tuner MFJ Accessories online at £179. This five-band (20, 17, 15, 12, 10 Meters) half-wave Cobweb Antenna is perfect for restricted space or portable operation. Multi Band HF / VHF / UHF base antennas. Built to survive harsh northern winters, heavy snow, ice and strong winds - has super-strong large. In the range of 0. MFJ Cobweb puts your call back on the map! This six-band (20, 17, 15, 12, 10, 6 Meters) full half-wave Cobweb Antenna is perfect for restricted space or portable operation. How I built my 2nd cobwebb to the alternative feed design of G3TXQ. The Cobweb antenna is a antenna which is easy and fast to install for portable operations, designed by G3TPW. Reading a lot of enthusiastic stories on the Cobwebb antenna (originally by Stephen Webb, hence the weBB) and considering its dimensions I thought it would make a good compromise for my situation. In my opinion, the MFJ-1835 is an excellent zero gain HF skyhook with few significant compromises and several definite advantages: 1) assembly took me about two hours and I was able to do it alone. I love this antenna. The reflector wire improves the signal by about 3 dB over a single wire antenna. 95) that handles up to 1. There are two main configurations for the Cobwebb: the original T-match version as developed by G3TPW and the 1:4 balun version as developed by G3TXQ. 95 2 in Stock : MFJ1836H : MFJ MFJ1836H: 1/2 WAVE 20,17,15,12,10,6m COBWEB ANTENNA 1500W $277. 95 Out of Stock : No Image Available: MFJ1836HK : MFJ MFJ1836HK: UPGRADE KIT MFJ1836 TO MFJ1836H $69. Interesting. Learning how to tune an antenna entails lengthening or shortening the antenna so that, for the radio's. Long wire antenna for portable operations. These antennas are roughly 12-feet as measured diagonally across the square they make. MFJ Cobweb puts your call back on the map! This six-band (20, 17, 15, 12, 10, 6 Meters) full half-wave Cobweb Antenna is perfect for restricted space or portable operation. Sky-gray fiberglass spreaders and nearly invisible wire elements blend in with your surroundings while standing tough against nasty weather. "I LOVE MY LOOP" "I Sure Did" An All Band 80 Meter Loop Project by John Reisenauer, Jr. Experiments with a homemade Cobwebb type Antenna Posted on Monday, July 8th, 2013 by G4DDP Over the years I have experimented with quite a few wire antennas at home increasingly to minimise the effect of the increasing noise level from the likes of plasma TV’s, switch mode power supplies, PLT and ADSL routers but fighting a losing battle on HF. Once the antenna was set up ready on my test pole I completed the tuning. MFJ-1835 Cobweb Antenne 20/17/15/12/10m Lambda 1/2. As of yesterday, I finally purchased the MFJ-1836HK34 cobweb antenna upgrade for my pre-existing MFJ-1836H antenna, and boy have I been longing for this for some months now. View and Download MFJ -1835H instruction manual online. Find great deals on eBay for mfj loop antenna and magnetic loop antenna. MFJ Cobweb puts your call back on the map! This six-band (20, 17, 15, 12, 10, 6 Meters) full half-wave Cobweb Antenna is perfect for restricted space or portable operation. The main purpose of constructing this omni directional antenna is to provide a multi band antenna which performs well from the lowest frequency band for which it is designed, all the way through 10 meters. The Octopus antenna is a multi-band, somewhat directional dipole antenna array. The cobweb is a compromise antenna and thus tends to perform a couple dB down from having individual dipoles on each band. The HVU-8 was designed for those suffereing from antenna restrictions in mind. Home Amateur Radio Antennas: HF Beam Antennas. Available at www. The MFJ-1835 Cobweb is your answer. We do not normally stock it. [QRZ] MFJ Telescoping Masts. On the plus side, it is actually rather easy to set up, although it is easier to do so using the RJ45 LAN port than by wireless, if only due to the fact that as soon as its connected to a network, it becomes 'transparent' and cannot be 'seen' by the devices on the. This eight-band (40, 30, 20, 17, 15, 12, 10, 6 Meters) full half-wave and 1500 Watt Cobweb Antenna is perfect for restricted space or portable operation. About DIY CobWebb Antenna The resource is currently listed in dxzone. The Cobweb antenna covers the five upper shortwave bands 20, 17, 15, 12 and 10m. MFJ-1838 Manufacturer MFJ UPC Availability This product requires special order. The Ameritron AL-811 is excellent for the newcomer because its tough enough to withstand momentary mistuning. Average Rating. MFJ 8-Band Cobweb VS Hy-Gain AV680 Comparison “So many people asked which antenna would I rather have and which one performs better. Welcome to Mosley-Electronics. Product marketing started in October of 1972, and the first product was a high selectivity filter that would enable a receiver to separate one Morse code signal from scores of other signals that were being transmitted over the radio airwaves. MFJ-1836H High Power HF Cob Web Antenna 1500W This six-band (20, 17, 15, 12, 10, 6 Meters) half-wave Cobweb Antenna is perfect for restricted space or portable operation. MFJ-1838 Description Hide This eight-band (40, 30, 20, 17, 15, 12, 10, 6 Meters) full half-wave and 1500 Watt Cobweb Antenna is perfect for restricted space or portable operation. I used an MFJ Cobweb antenna as the comparison antenna" MFJs tiny 36 inch diameter loop antenna lets you operate 15 through 40 Meters continuously — including the WARC bands!. It seemed to work but it was very narrow banded. Much thanks to Steve for taking the time. Use lightweight tv hardware to mount it on your chimney, balcony, fence post or other. The MFJ 1835 is one of MFJ’s most popular antennas, a cobweb which is compact and light weight and allows the modern ham with a ‘postage stamp’ sized garden the ability to install a horizontal antenna. Engineered for maximum performance with a 14 Gage wire to our coaxial mono band double bazookas of RG11. MFJ sent me their MFJ-2104 Octopus Antenna, a four-band dipole with screw-in elements for 75m (the voice portion of 80m), 40m, 20m, and 10m. Where I was getting up to S6 of noise from the wire antenna, the cobweb was showing me a paltry S2-3! What I realised quite quickly was that the Cobwebb was much quieter than the wire and exhibited much better signal reception. com in a single category. Mfj 1835 Cobweb Antenna Review And Testing. Sky-gray fiberglass spreaders and nearly invisible wire elements (flat 9x9x1/2 feet square. This video I will be assembling both the MFJ-1836 6 band cobweb antenna with the additional 30/40m add-on kit. Sky-gray fiberglass spreaders and nearly invisible wire elements blend in with your surroundings w. The MFJ-1836 is solidly constructed to take on extreme weather. Antenna manufacturers publish gain figures for their products. 8 pounds), blend in with your surroundings while standing tough against nasty weather. 8 pounds), blend in with your surroundings while standing tough against nasty. Long wire antenna for portable operations. The Cobweb antenna is a antenna which is easy and fast to install for portable operations, designed by G3TPW. Sky-gray fiberglass spreaders and nearly invisible wire elements blend in with your surroundings while standing tough against nasty weather. Its lightweight and being non-directional make it easy to mount using simple masts for portable operations. The antenna is in itself one solution for hams who have very limited space to erect an antenna. This part is the creation of the junction box. I used an MFJ. MFJ Extends its Cobweb Antenna to 40 Meters: Ask Dave 71 reviews the MFJ cobweb antenna, covering 20 through 10 meters. Any reuse or redistribution of the contents of this website are strictly forbidden without authorization from MFJ Enterprises, Inc. MFJ-1836H Six Band 20-6M HF 1/2 Wave Cobweb Antenna, Handles 1500W. Unfortunately the tripod mount has received a bad rap over the years simply because of poor installation methods. CobWeb Aerial | M∅PZT. MFJ recently came out with a modification kit, adding 30 and 40 meters. You new antenna is composed of. MFJ-1866 VHF Discone Antenna. It was great to be able to put wires on the towers or off my. Qualifications: 1. Antennas Broadcast. I consider this one of the best values I have ever purchased. Here's a review of the MFJ-1835H (high power) cobweb antenna. Join me for unboxing, assembly, and testing. 1/2-wave, 5-Band HF Cobweb Antenna Restricted space spoiling your operating fun? MFJ-1835 puts your call back on the map! This fiveband (20, 17, 15, 12, 10 Meters) half-wave open-loop is perfect for restricted space or portable operation. The turn radius is a very compact 6. The Cobweb Antenna. It was a experiment into compact multi-band HF aerials for the higher bands and various solutions existed: G3TXQ Hexbeam , GM3VLB Delta , G3TPW CobWebb, Moxon , VK2ABQ etc. Insulator for the loop antenna plenty of rope at the pine tree At the other 4 trees, the antenna wire can move freely through egg insulators, like the one shown. Field Testing The MFJ Octopus Antenna | Did It survive the wind? “This time, I’m out in the field (way out in the Arizona desert) Field testing the MFJ Octopus antenna. MFJ-1836H High Power HF Cob Web Antenna 1500W This six-band (20, 17, 15, 12, 10, 6 Meters) half-wave Cobweb Antenna is perfect for restricted space or portable operation. The hexagonal beam (or known by many as the hex beam) has become a wildly popular antenna. MFJ-1836 Six Band 20-6M HF 1/2 Wave Cobweb Antenna, Handles 300W. Sky-gray fiberglass spreaders and nearly invisible wire elements (flat 9x9x1/2 feet square. It allows the average amateur to compete with the big boys for DX and without spending your retirement to do so. Antenna Plots produced using MMANA-GAL Antenna Model Program - 10m plots omitted to save space. CobWeb Aerial | M∅PZT. MFJ-1838 Cobweb horizontally-polarised 8-band halfwave heavy duty base station 40-30- 20-17-15-12-10-6m antenna. You Don't Need a BIG Antenna Any More! Customer Rated 4. Mfj-923 dual band vhf/uhf 200w antenna tunerham amateur radio (grants pass) Sold at 150 $ Never used with original box. MFJ-1836H Six Band 20-6M HF 1/2 Wave Cobweb Antenna, Handles 1500W MFJ-993B 1. We offer a wide line of antennas including Amateur, Aviation, Business, Citizens Band (CB), Commercial, Marine, Military, & Short Wave antennas. CobWebb Antenna projects is a curation of 13 resources about , TowerTalk: CobWebb discussion, 4-BAND COLA ANTENNA 20-17-15-10m, Cobweb Antenna Construction Details, Building a CobWebb Antenna, DIY CobWebb Antenna. The MFJ 1836 and MFJ 1836H G3TPW CobWebb Antennas for the 14, 18, 21, 24, 28 und 50 MHz Bands cover all 6 Bands with low SWR. Product marketing started in October of 1972, and the first product was a high selectivity filter that would enable a receiver to separate one Morse code signal from scores of other signals that were being transmitted over. This is a special order item. One of the most effective antennas for NVIS is a dipole that is mounted from 0. This five-band (20, 17, 15, 12, 10 meter) half-wave Cobweb antenna is perfect for restricted space or portable operation. The 36" loop antenna is still a nuisance due. Anticipating it may need to be installed hidden from view along the side of a building or home, rather than in the preferable location in free space, the ground radial system uses two rotating rings. MFJ-1836H High Power HF Cob Web Antenna 1500W This six-band (20, 17, 15, 12, 10, 6 Meters) half-wave Cobweb Antenna is perfect for restricted space or portable operation. Also, the buyers often do not understand that gain is "relative to something" which in many cases, is a non existant isotropic antenna. Just preview or download the desired file. 8 pounds), blend in with your surroundings while standing tough against nasty weather. Premium Flagpole Antenna and DX Vertical Antennas for HF radio, 80-6M. MFJ Cobweb puts your call back on the map! This six-band (20, 17, 15, 12, 10, 6 Meters) full half-wave Cobweb Antenna is perfect for restricted space or portable operation. Join me for unboxing, assembly, and testing. It has a very small footprint and can be a great stealth antenna. Finden Sie Top-Angebote für Mfj‑1836 - HF Cobweb Ham Radio Base Antenne 6-10-12-15-17-20 Meter 300w F/S bei eBay. Our collection of ULTIMAX antennas have been used by DX Expedition Teams, Boy Scouts of America, in military field operations, by the Chile's Civil defense, Israeli military personnel, as well as special event stations aboard the USS Alabama. About DIY CobWebb Antenna The resource is currently listed in dxzone. 5/5click here to see their performance reports. RadioWavz Wire antennas are the simplest practical antennas from a theoretical point of view; current amplitude on such an antenna decreases uniformly from the maximum at the center to zero at the ends. MFJ Octopus Antenna, MFJ-2100 Making Contacts - Watch new movie trailers, high-quality HD trailers. This kit will add 30 and 40 meters to any MFJ-1835 Cobweb antenna. Buy Mfj Antenna now!. MFJ HF Cobweb Wire Dipole Antennas cover multiple bands and are suitable for many restricted space applications. I used an MFJ Cobweb antenna as the comparison antenna" MFJs tiny 36 inch diameter loop antenna lets you operate 15 through 40 Meters continuously — including the WARC bands!. 5kW at the best online prices at eBay! Free delivery for many products!. I used an MFJ Cobweb antenna as the comparison antenna” MFJs tiny 36 inch diameter loop antenna lets you operate 15 through 40 Meters continuously — including the WARC bands!. Sky-gray fiberglass spreaders and nearly invisible wire elements blend in with your surroundings while standing tough against nasty weather. 20, 17, 15, 12, 10, and 6M. mfj The company began operations in a small rented hotel room in the old Stark Hotel in downtown Starkville, Mississippi. A dipole or a CobWeb has a gain of about 5dB over a dipole in free space. Here's a review of the MFJ-1835H (high power) cobweb antenna. CobWeb Aerial Back in the summer of 2012, I decided that I wanted to build a CobWeb. The mounting clamp is fitted using wing nuts to make the pole assembly easier. 8-30MHz Automatic Antenna Tuner 150/300 Watts, 20,000 Memories MFJ-2240, 40 Meter Mini-Dipole Includes MFJ-347 & 2 MFJ-1640T Hamstick Antennas. MFJ's version of the popular Cobweb 5 band Loop Antenna The Cobweb antenna has proved very popular in the UK where space is limited. No mast in this context means no structure taller than a person. Field Testing The MFJ Octopus Antenna | Did It survive the wind? “This time, I’m out in the field (way out in the Arizona desert) Field testing the MFJ Octopus antenna. One common balun feeds five dipoles which are folded in a roughly square shape, only one feedline is required. MFJ Cobweb Antenna turns your space problem into a stack of QSLcards from far away places. The MFJ Cobweb antennas pro-vide good multiband HF perfor-mance in a compact, lightweight, and stealthy package. It consists of 4 dipoles constructed from HamStick vertical antenna elements arranged horizontally around a central hub. At the bottom, I attached my MFJ Versa Tuner. Radiation pattern is nearly omni-directional so you don't need a rotator. Outstanding performance! Horizontally polarized for less local noise pickup plus solid gain over verticals will allow you to work DX easily -- even on QRP. MFJ Cobweb Antenna turns your space problem into a stack of QSL cards from far away places. It has a very small footprint and can be a great stealth antenna. I did assemble the antenna and made my first video about the unit, but the HF condition was not very good. Great antenna and a keeper! Ask Dave Episode 113 New All-band SSB/CW Micro BITX Now Available. It seemed to work but it was very narrow banded. it Cerca Osserva. Stations received at S3-4 were up to S9 on the Cobwebb. Antennas Broadcast. Delivery cogwebb may vary, especially during peak periods and will depend on when your payment clears - opens in a new window or tab. (Updated September 4, 2019, pdf format. Installed properly it's also the strongest. Looks like a nice antenna to take on a road trip and do some portable work, or even at the home QTH for QRP experiments. 8-54 MHz, 1500 Watts MFJ's high-accuracy digital SWR/Wattmeter/Frequency Counter measures to 1. Wire antennas are often made of "hard-drawn" copper wire, or of soft-drawn wire which is pre-stretched to avoid such sagging and de-tuning. View and Download MFJ -1835H instruction manual online. However, it does seem that i've not got it completely right!. wind storm, a hail storm, and small snow storm. MFJ HF Cobweb Wire Dipole Antennas cover multiple bands and are suitable for many restricted space applications. This clip illustrates my progress from start to finish building a homebrew single wire Cobweb antenna for the five amateur bands; 20m, 17m, 15m 12m and 10m. Sky-gray fiberglass spreaders and nearly invisible wire elements blend in with your surroundings while standing tough against nasty weather. During recent range testing of a hexbeam I needed a horizontally-polarised resonant antenna covering 20m thru 10m which could be assembled and disassembled quickly and easily. Product marketing started in October of 1972, and the first product was a high selectivity filter that would enable a receiver to separate one Morse code signal from scores of other signals that were being transmitted over the radio airwaves. Too bad the condition of the bands were not good that day, I. It is typically used for matching a transmitter (or transceiver) whose impedance is 50 Ohms, to an antenna system (antenna plus transmission line) whose impedance is not 50 Ohms. Brian, I have used my 817 in a number of SOTA situations. Each is factory tuned for minimum SWR and handle 100 Watts PEP CW/SSB. Experiments with a homemade Cobwebb type Antenna Posted on Monday, July 8th, 2013 by G4DDP Over the years I have experimented with quite a few wire antennas at home increasingly to minimise the effect of the increasing noise level from the likes of plasma TV's, switch mode power supplies, PLT and ADSL routers but fighting a losing battle on HF. Several designs emerged in the 1970s for reduced size beam antennas implemented by folding the elements. Last summer I built myself a Cobwebb antenna and was fairly pleased with the results. Here is an antenna that will solve a lot of problems for those with small gardens who want to cover as many of the popular bands as possible. I found myself really liking it. Stations received at S3-4 were up to S9 on the Cobwebb. ,KL7JR Presented here with his kind permission from an article published in 73 Magazine "When I think back a few years ago I had 10 acres to use for my antenna farm. The box is filled with casting resin so fully weather-proof. Tues Nov 28 8 PM central join Martin F. 40,30,20,17,15,12,10,6m COBWEB ANTENNA 1500W. I built a portable version of a Cobweb antenna, it is based on a design by Stephen Webb G3TPW and my adaptation of the idea is to make it so that it can be collapsed easily and when required re-assembled and mounted hopefully on a telescopic pole. MFJ 8-Band Cobweb VS Hy-Gain AV680 Comparison “So many people asked which antenna would I rather have and which one performs better. Unfollow cobwebb antenna to stop getting updates on your eBay feed. As I've stated before the Cobweb antenna is fairly easy to build, I'm no great technical genius and yet I have managed to build both the G3TPW and G3TXQ antennas and if I can build this antenna, so can you! This is quite easily the best antenna I have used, it's small (8ft circumference) omnidirectional and produces very little TVI. These antennas are roughly 12-feet as measured diagonally across the square they make. This link is listed in our web site directory since Monday Dec 25 2017, and till today "DIY CobWebb Antenna" has been followed for a total of 693 times. MFJ products online from ML&S Martin Lynch & Sons. Reading a lot of enthusiastic stories on the Cobwebb antenna (originally by Stephen Webb, hence the weBB) and considering its dimensions I thought it would make a good compromise for my situation. The 36" loop antenna is still a nuisance due. MFJ Cobweb Antenna turns your space problem into a stack of QSLcards from far away places. The CobWebb is a five band (14 to 28MHz) compact array of dipoles, bent into a square, almost omni-directional and with unity gain. It looked like just the ticket so I copied. Jue ,Tom Medlin , and Dave Casler for a detailed information how to build your own cobweb antenna. This eight-band (40, 30, 20, 17, 15, 12, 10, 6 Meters) full half-wave and 1500 Watt Cobweb Antenna is perfect for restricted space or portable operation. Any reuse or redistribution of the contents of this website are strictly forbidden without authorization from MFJ Enterprises, Inc. Cushcraft SQUALOS(TM)carry a one year limited warranty. Modified Portable MFJ-1835 Cobweb Antenna. Introduction Thank you for purchasing the MFJ-1835 five band HF antenna. Multi Band HF / VHF / UHF base antennas. for MFJ-929 series backlit LCD, antenna switch for 2 antennas, Digital LCD SWR/Wattmeter These cables work with the following MFJ built-in radio interface and built-in internal An easy-to-read, two-line, 16-character Automatic tuners: MFJ-929, MFJ-928, MFJ-BiasTee for remote tuner operation. MFJ Cobweb Antennas In Stock. Product marketing started in October of 1972, and the first product was a high selectivity filter that would enable a receiver to separate one Morse code signal from scores of other signals that were being transmitted over. Page 1 MFJ-1838 6,10,12,15,17,20,30,40 METER COBWEB ANTENNA INSTRUCTION MANUAL CAUTION: Read All Instructions Before Operating Equipment 300 Industrial Park Road Starkville, MS 39759 USA Tel: 662-323-5869 Fax: 662-323-6551 COPYRIGHT 2018 MFJ Enterprises Inc. it Cerca Osserva. This six-band (20, 17, 15, 12, 10 and 6 Meters) half-wave open-loop is perfect for restricted space or portable operation. The SWR at the band edges is mainly reactive, i. moderated Admin September 25th 19 11:38 AM. its was a project I complete over the course of a weekend or two. The antenna is in itself one solution for hams who have very limited space to erect an antenna. It's a relatively new antenna for MFJ so there are not a lot of reviews yet. Note that this is the same as a standard dipole, although a straight dipole will have sharp nulls off each end. They are the MFJ-1836 ($229. MFJ Octopus Antenna, MFJ-2100 Making Contacts - Watch new movie trailers, high-quality HD trailers. 9% similar) Mfj-1836, 1/2 wave, 6-band 20, 17, 15, 12, 10 and 6 meters hf cobweb antenna, 300 watt. So how does it hold up in 60 MPH winds, harsh desert environments and portability as a quick setup field antenna system. the resistive component is still near 50 ohms, so auto and simple ATUs can match it with low loss. During recent range testing of a hexbeam I needed a horizontally-polarised resonant antenna covering 20m thru 10m which could be assembled and disassembled quickly and easily. Ideal HF Antenna. MFJ-1866 VHF Discone Antenna. Make sure that the cotter pin is inside the notch in the inside tube. It is a directional antenna that provides great performance and does not require a full scale, expensive tower. • Elements were folded toward each other at about the 50% point (1/4 wave spacing required!!). 8-30MHz Automatic Antenna Tuner 150/300 Watts, 20,000 Memories MFJ-2240, 40 Meter Mini-Dipole Includes MFJ-347 & 2 MFJ-1640T Hamstick Antennas. During recent range testing of a hexbeam I needed a horizontally-polarised resonant antenna covering 20m thru 10m which could be assembled and disassembled quickly and easily. It's small, lightweight, strong, only requires a single support, needs no rotator, gives full size dipole performance on all 5 HF bands, is fed by a single 50 ohm coax, and produces a horizontally polarized signal that minimizes RF interference. Reading a lot of enthusiastic stories on the Cobwebb antenna (originally by Stephen Webb, hence the weBB) and considering its dimensions I thought it would make a good compromise for my situation. Cookies help us to give you a better experience on this website. Sky-gray fiberglass spreaders and nearly invisible wire elements (flat 9 x 9 x 1/2 feet square. "I LOVE MY LOOP" "I Sure Did" An All Band 80 Meter Loop Project by John Reisenauer, Jr. It was great to be able to put wires on the towers or off my. Transmitter power gets converted to RF, not to heating the ground, coax, or matching network components. Visita eBay per trovare una vasta selezione di ANTENNA MFJ. Home Amateur Radio Antennas: HF Beam Antennas. MFJ has created a set of 1/2-wave dipole antennas folded into a square (sort of a cobweb antenna). We will order it for you. Low in cost, but big on performance. MFJ 1836HK √ Usually in stock. The turn radius is a very compact 6. Although I've had to firstly send it to a Shipito warehouse in California where it'll then finally be routed to my residential address in Australia, simply because directly. Offering a lightweight, Omni-directional solution for the 10m-12m-15m-17m-20m bands. MFJ Wire Antenna, 40m-10m, G5RV jr dipole and Ham Guides TM Pocket Reference Card Bundle. The add-on kit is intended for the current users of the. 0 This article is dedicated to my friend Bill Stevenson - G4KKI (SK), a fellow RSARS member, who shared my. MFJ Cobweb Antenna turns your space problem into a stack of QSL cards from far away places. The main category is CobWebb Antenna projects that is about CobWebb Antenna projects. 8 pounds), blend in with your surroundings while standing tough against nasty weather. "I LOVE MY LOOP" "I Sure Did" An All Band 80 Meter Loop Project by John Reisenauer, Jr. com MFJ-1835H Cobweb antenna review (high power version 1. What is a CobWebb antenna and what is its gain? It is a very efficient horizontally polarised omni-directional antenna for the 14, 18, 21, 24 and 28 MHz bands, with a gain of 7 dB over an isotropic radiator (7dBi). MFJ HF Beam Antennas Out Of Stock Notify when back in stock £83. 00, depending on the length of coaxial cable. It was great to be able to put wires on the towers or off my. This part is the creation of the junction box. This Cobweb Antenna is using a double 1:4 balun that can handle a. I love this antenna. 5 kW high-power version). 95 Special Order : MFJ1836 : MFJ MFJ1836: 1/2 WAVE 20,17,15,12,10,6m COBWEB ANTENNA 300W $247. If you have limited space for an HF antenna, this may be one to look at. MFJ-1836H Six Band 20-6M HF 1/2 Wave Cobweb Antenna, Handles 1500W. Well, this is a basic comparison on a day not so good for signals on the bands, but my take on antenna A vs antenna B. W3DZZ Multi-band Antenna 80-40-20-15-10m N. RadioWavz Wire antennas are the simplest practical antennas from a theoretical point of view; current amplitude on such an antenna decreases uniformly from the maximum at the center to zero at the ends. • Elements were folded toward each other at about the 50% point (1/4 wave spacing required!!). I love this antenna. ,KL7JR Presented here with his kind permission from an article published in 73 Magazine "When I think back a few years ago I had 10 acres to use for my antenna farm. The Ameritron advantage: Extra heavy duty power supply gives you peak performance year after year. com in a single category. Ideal HF Antenna. MFJ has created a set of 1/2-wave dipole antennas folded into a square (sort of a cobweb antenna). Manufactures antennas, SWR meters and power supplies primarily for the Amateur Radio market. Once the antenna was set up ready on my test pole I completed the tuning. MFJ-1838, 1500W, 40-6M, Super Heavy Duty Cobweb Antenna. Although I've had to firstly send it to a Shipito warehouse in California where it'll then finally be routed to my residential address in Australia, simply because directly. MFJ 8-Band Cobweb VS Hy-Gain AV680 Comparison “So many people asked which antenna would I rather have and which one performs better. MFJ Cobweb Antenna turns your space problem into a stack of QSLcards from far away places. This kit will add 30 and 40 meters to any MFJ-1835 Cobweb antenna. Well, this is a basic comparison on a day not so good for signals on the bands, but my take on antenna A vs antenna B. Sky-gray fiberglass spreaders and nearly invisible wire elements (flat 9x9x1/2 feet square. (Updated September 4, 2019, pdf format. Raise the next smallest Tube and insert the cotter pin. MFJ-1866 VHF Discone Antenna. I used an MFJ Cobweb antenna as the comparison antenna" MFJs tiny 36 inch diameter loop antenna lets you operate 15 through 40 Meters continuously — including the WARC bands!. Including End Fed Half Wave antennas. MFJ-1835H Antenna pdf manual download. Ideal HF Antenna. Resources listed under CobWebb category belongs to Antennas main collection, and get reviewed and rated by amateur radio operators. uk 01922 414796, for all your radio needs. DJ0IP's "OPINIO N" ABOU T MF J MATCHBOXES MFJ is a major player in the antenna matchbox market. Modified Portable MFJ-1835 Cobweb Antenna. These antennas are roughly 12-feet as measured diagonally across the square they make. They have fiberglass spreaders and wire elements Find MFJ HF Cobweb Wire Dipole Antennas MFJ-1838 and get Free Standard Shipping on orders over $99 at DX Engineering!. 95 Special Order : MFJ1836 : MFJ MFJ1836: 1/2 WAVE 20,17,15,12,10,6m COBWEB ANTENNA 300W $247. G3TPW CobWebb Antenna for the 14, 18, 21, 24 and 28 MHz Bands All the other small multi-band commercial antennas that are available are less than. Home Amateur Radio Antennas: HF Beam Antennas. MFJ-1836, 1/2 Wave, 6-Band (20, 17, 15, 12, 10 and 6 Meters) HF Cobweb Antenna. These files are related to Mfj 1835 cobweb antenna review and testing. Note that this is the same as a standard dipole, although a straight dipole will have sharp nulls off each end. com via rec. Outstanding performance! Horizontally polarized for less local noise pickup plus solid gain over verticals will allow you to work DX easily -- even on QRP. MFJ-1625 Instruction Manual Window/Balcony Mount Antenna 1 MFJ-1625 Window/Balcony Mount Antenna Introduction The MFJ-1625 Window/Balcony Mount Antenna was designed to provide portable or permanent HF communications on 80 through 10 meters and VHF on 6 meters. MFJ-1838 Manufacturer MFJ UPC Availability This product requires special order. Product Review: MFJ-1775 6-Band Rotatable Mini-Dipole Phil Salas - AD5X Introduction When I saw the MFJ-1775 compact dipole the MFJ catalog, it caught my interest as I live on a small city lot with a backyard completely taken up with a swimming pool. You new antenna is composed of. One common balun feeds five dipoles which are folded in a roughly square shape, only one feedline is required. During recent range testing of a hexbeam I needed a horizontally-polarised resonant antenna covering 20m thru 10m which could be assembled and disassembled quickly and easily. com Quality antenna systems by Mosley Electronics. The MFJ-1835 Cobweb is your answer. I found myself really liking it. Use lightweight tv hardware to mount it on your chimney, balcony, fence post or other. MFJ-1856 Six Band Hex-Beam Antenna. Super heavy-duty 40-6 Meter Cobweb Antenna. Sky-gray fiberglass spreaders and nearly invisible wire elements (flat 9x9x1/2 feet square. How good is a G5RV and how do they work? Ham Radio Antennas. MFJ 8-Band Cobweb VS Hy-Gain AV680 Comparison "So many people asked which antenna would I rather have and which one performs better. for MFJ-929 series backlit LCD, antenna switch for 2 antennas, Digital LCD SWR/Wattmeter These cables work with the following MFJ built-in radio interface and built-in internal An easy-to-read, two-line, 16-character Automatic tuners: MFJ-929, MFJ-928, MFJ-BiasTee for remote tuner operation. Welcome to Mosley-Electronics. About DIY CobWebb Antenna The resource is currently listed in dxzone. It will usually even work well on 6 meters if your tuner and balun will handle that band. The COBWEB antenna is known throughout the world for its small footprint, high efficiency design. Find great deals on eBay for mfj antenna and mfj antenna analyzer. Average Rating. MFJ Apartment Antenna 40 Meters to 2 Meters MFJ-1622; MFJ Super Loop Antennas; Outbacker Antennas-- Terlin; Quicksilver Radio Products MinuteMan™ HF Portable Antennas; The ScrewDriver. MFJ-1836H Manufacturer MFJ UPC Availability This product requires special order. PK's Loop Antennas bring clear & long range AM radio reception for homes and commercial use. These files are related to Mfj 1835 cobweb antenna review and testing. You new antenna is composed of. The Ameritron AL-811 is excellent for the newcomer because its tough enough to withstand momentary mistuning.