ALL STAINLESS HARDWARE End Fed Dipole 80-6M Portable HF Matchbox.

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THIS IS THE UPGRADED ALL STAINLESS ANTENNA HARDWARE MODEL<br>OVER 4000 SOLD WITH PERFECT SUCCESS<br>UJM-150<br>End Fed Antenna Matcher<br>Made by a HAM for Hams<br>PLEASE READ FULL LISTING AND PLEASE LOOK AT EVERY PICTURE!!<br>I HAVE ANTENNA HARDWARE LISTED IN MY OTHER ITEMS FOR SALE TOO. EBAY ITEM NUMBER<br>202997373525<br>My standard zinc coated listing will last for many years in any weather but this listing is the upgraded ALL STAINLESS ANTENNA HARDWARE MODEL so there will never be an issue with components starting to rust.<br>Tiny and light weight but ready and capable to put in work! This unit is<br>encased<br>in a 1"x 2"x 3" ABS box! And comes with a VERY HIGH QUALITY SO-239 connector. This is available in a BNC connector version if you would like. To see or buy the BNC version just scroll to the top of this page and look for the "see other items" button found straight to the right of the "add to cart" button.<br>Does your HOA try to deny you the ability to have antennas up?<br>Are you looking for a quick and convenient way to run a portable dipole without needing 2 or 3 supports or several antennas for portable or permanent operation?<br>The UJM-150 may be just for you.<br>WHY MY MATCHBOX IS DIFFERENT<br>I have a unique toroid that I custom order for my units. After many many hours and many dollars spent in R&D I finally found the best working comination of toroid and wire size and type. Simply put, my unit is NOT a "google how to" and throw together unit. I take pride in my work and products and make them the best I can.<br>This unit will allow you to run an end fed dipole (1 single wire) on almost any band with just a single wire and radio+tuner.<br>My matchbox is made with a larger toroid than most here and solid copper wire allowing more power to<br>run through it.  You can run from QRP to 150Watts PEP easily if using a tuner with random length.<br>This is accomplished with a trifilar wound unun (not balun) transformer at a 9:1 ratio. How this works is really quite simple. Running a standard dipole with 2 elements has about a 72 ohm feed point at the center but end feeding a dipole will result in impedance levels from 1800 to 5000 ohms! That's way too much for a tuner to handle right?<br>Well that's what this matchbox takes care of. Simply put it brings the impedance down to levels that tuners can deal with and a tuner isn't even needed if you trim to a good length.<br>Most users will find no rf issues and find no rf choke is needed. That said, using a GOOD rf choke is always good ham practice<br>and I do have my own designed choke/s with full choking specifications listed with the one authorized distributor for them. It can be found by putting the eBay item number in the eBay search bar. That number is 264946030545<br>HOW TO DEPLOY<br>First off you will need a tuner unless you use the chart provided a little lower in the description and trim to resonant length! The bands you can tune up and work depends on your tuner. I use a LDG with my 897d and I can tune up 160-6meters. Although probably not very efficient on 160 it will tune up for me.<br>Use at least 16 feet of coax from the box to the tuner! The box uses the shield of your coax so the 16 feet or more is good.<br>You can run your antenna as a vertical/sloper/inverted L/or zig zag even. Myself, I usually use a 60' wire and wrap it around and up my 32' telescopic mast while portable. Or I use a 30' wire and run up 20' or so and make an inverted L. The fun thing about being a ham is experimenting and finding out what works the best for you in your situation.<br>COMMON AND PROVEN LENGTHS OF WIRE TO RUN ARE AS FOLLOWS;<br>(FEET) 35.5  41  58  71  84  107  119  148  203  347  407  423<br>ALSO, AFTER YOU PURCHASE AND BEFORE I SHIP I WILL SEND YOU A MESSAGE WITH A WEB LINK TO SELECTING A LENGTH FOR YOUR INTENDED PURPOSE.<br>I have many customers that swear this thing rocks on 20 meters perfectly without a tuner using a 84 foot wire and they can tune up on ALL other bands.<br>Some bands may benefit from using radials or a small ground rod depending on the antenna wire length.  You can add or subtract from your antenna wire to obtain a better match for any band/s you wish.<br>So just run your antenna wire 22-84 feet, run to your tuner and to your radio, tune up and talk!<br>WHY ARE MINE SO CHEAP