The balun will make sure the performance isnt affected by the length of the antenna cable. I would imagine the 40m to 15m mfj version of this loop mfj1788x would show. We have 1 mfj mfj1788 manual available for free pdf download. Miniloop mfj1788 inside the weather cover inside the weather cover worked countries environment. Placement on the side of a house or garage at eaves level is acceptable as. Designed as 32 wavelength antennas for 14 mhz, they provide reasonable performance on many other bands. Theyre ideal for limitedspace applications like apartments, small lots, motor homes, attics, and mobile homes.
View and download mfj 1786 instruction manual online. Mfj 1788 hiq magnetic loop antenna lets you operate 7 to 21 mhz continously including warc bands. Mfj 1788 super hiq loop antennas mfj1788 free shipping. Mfj mfj1788x antenna loop, mfj1788x ham radio outlet. I decided to go vertical with the loop to see what happened. Ideal for limited space apartments, small lots, motor homes, attics, or mobile homes. Review of mfj magnetic loop antennas for hf 40m 10m by julian moss, g4ilo. Highly recommend lanlink, available on numerous bbss and the internet. They cover all bands from 8010 meters with a wide range antenna tuner. If you mount this antenna less than 7m above either ground or a metal roof. The recommended support mast for the mfj1835 is steel water pipe between the sizes of 112 od to 1 od and with a length that will place the antenna base at a safe height. When i took it out, i could hear something rolling around.
After several videos and disappointments, the mfj1788 hiq loop antenna didn t work. Now those of you that have the mfj 1788 loop know there is a bracket that comes with the loop for just this purpose. I downloaded the manual and schematic from the mfj website and i. I used an mfj cobweb antenna as the comparison antenna.
Is the loop mounted higher than the front railingwall so that it has a clear lineofsight to the horizon, or is the loop mounted in a lower stealth position below the front railingwall and blocking. Id like to have 40 meters but wanted 10 meters more. If you mount them vertically, youll enjoy both dx and local contacts. I test the mfj1788 in a horizontal position on my rooftop. The antennes ive ordered a month ago arent in yet shame on you vpasystems. The horizontal elliptical 22cmcm gray cable is the feed loop. From unboxing to mounting and testing, this is a great little antenna. Its receive performance matches that of a more traditional vertical as well as mfjs 1788 loop antenna. The mfj1786 magnetic loop antenna well, i bit the bullet today and placed my order with mfj for an mfj1786 magnetic loop antenna. Rugged all welded aluminium construction, it is fully weatherproof and does not require a separate control cable, the coax carries the signal and the dc control signals for tuning. Any issues with signup please use contact us button at bottom of any page. Unpacking and installing plus using an ez end fed through a sg239 smart tuner. Enter the mfj1786x a small magnetic loop 6band antenna continuously tuneable from 10mhz to 30mhz 30m to 10m.
The possibilities are endless for mounting ideas will hold up to 75 pounds amazon app. So for a couple of evenings of experimenting i put the loop in the garden on a 5ft pole held up by a heavy driveon stand with 20m 65ft of rg58 running into the shack. The mfj1835 is designed to operate at a height of 10 or more feet for proper performance. I have been looking at these for years, and have always been fascinated by mag loops. The package looked okay except for a small area where it sustained a hit from a blunt object, but nothing that looked really bad. I wouldnt think the steel mast would have much effect since it is at the center of the loop directly below the null. Cyberlink powerdirector on a toshiba s55a5294, also using. The tuner unit of the mfj1788 and its 30m 10m counterpart the mfj1786 is in. Mfj mfj1788 manuals manuals and user guides for mfj mfj1788.
I used am using this mfj1786 antenna at various qths from a mountain top overlooking the great smoky mountains national park, to our beachfront condo 100 yards from the gulf of mexico to our current home in potomac, maryland 15 miles from the white house and congress and from all three locations worked a. The mfj1788 super hiq loop antenna is ideal for restricted space locations. All information, images, and documents on this website are the sole property of mfj enterprises, inc. The other one is for the motor in the opposit shell.
Was feeling pretty chuffed after repairing the mfj1788 super loop and couldnt wait to try it out. Per mfj instructions, it is on a 20 foot steel push up mast guyed with 550 paracord. Comments here indicate probably not, but id like more info on what and why. Antenna mfj model 1788 question when joining hamradioforum you will get a confirmation email which you need to respond to. Mfj1786 loop antenna my stealth antenna installations. These are multiband, centerfed dipole antenna capable of 1,500 watts. It was built to be used in a lightweight qrp radio setup based on a yaesu ft. Any reuse or redistribution of the contents of this website are strictly forbidden without authorization from mfj enterprises, inc. I forgot to mention that i have tried mounting it vertically and also at different heights. Note that it sometimes stated that a magnetic loop has only a magnetic component in the near field.
Mfj1788 magnetic loop antenna available here radioworld. Mag loops are very efficient and are much smaller than full size resonant loops. Mfj mfj1788 instruction manual 16 pages super hiq loop antenna. Mfj enterprises inc,ameritron,hygain,hygain,cushcraft,vectronics,mirage,mfj,mfj enterprises,antenna,radio,ham radio,amateur radio,tuner,analyzer,starkville,amplifier.
I also read about the well known mfj 17861788 and the twice as expensive. You need to have height above for horizontal mounting. I used an mfj cobweb antenna as the comparison antenna mfjs tiny 36 inch diameter loop antenna lets you. This is not strictly true there is an intense electric field around the tuning capacitor part of the loop. The mfj1204 stands out because it is faster to set up and easier to use than any other usbinterface on the market. Get both low angle radiation for excellent dx and high angle radiation for local contacts. Once ordering the antenna dx engineering had it at my door in 3 days. Mfjs tiny 36 inch diameter loop antenna lets you operate 15 through 40 meters continuously including the warc bands. Describe your experience with the mfj1788 super hiq loop and tell us why you give it the rating you did required. Mfj1797 vertical antenna, 7band, 4010m compact vertical.
If permanent mounting is not possible, a magnetic loop can be mounted on a. Mfj1788 1540 metres super hiq loop antenna radioworld. I opened the package, and there was no packing the loop was suspended by two cardboard holders on each end the loop looked undamaged. Other useful information would include your experience with similar products, infomation on a product that you would purchase instead of this one, and so on. Ideal for limited space, apartments, small lots, motor homes attics or mobile homes. Skymaster vertical antenna covers all your favorite hfbands. Using the mfj1788 mag loop antenna horizontally qrz now. You can remotely tune to the amateur bands in seconds. Enjoy both dx and local contacts mounted vertically.
Mfj1778 g5rv wire antenna multiband centerfed dipole antennas. One bolt had seized, the nut inserts are held in quite soft aluminium so not surprisingly the insert came out out the mounting when trying to remove it. Mfj 1788 loop problems tuning 30 and 40 meters qrz forums. Mfj mfj1788 antenna loop, mfj1788 ham radio outlet. Regarding the mounting height of the antenna relative to the balconys front railingwall. All it takes is your existing radio, a computer, some free downloadable software, and a soundcardequipped usb interface like the mfj1204 to get started. A flimsy and rather poorly made plastic cover protects the tuning capacitor and its motor and the coupling coil from the elements, if the antenna is mounted outside, but it seems designed more to let rain run out than to keep it out in the first. It also lets you use a more common type of mount like the mfj336t trimagnet mount or mfj345t lip mount.
Dx engineering had the antenna in stock were as the local store was not able to tell me when the antenna would be in. The thoughts, observations and adventures of a software engineer and. After doing some playing with the location of my 1788 mag loop on the balcony and getting really nowhere with lowering the swr. Outreachoutpost bilal isotron 40 force 12 zr3 mfj1788 traffie hex beam ii band or frequency range 16010 meters 40 meters 20, 15 and 10 meters 7. I have an hoa and need to be stealthy, so i finally broke down and got an mfj1788 last week. Ready for inspection the mfj 1788 antenna has arrived i ended up ordering it from dx engineering and cancelling the order at the local ham store. Is there any software available to use the advanced modes in the mfj1278 tnc. I have it mounted horizontally only about 12ft up, hanging below the deck off my second story.
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