eBay's Top Portable Antenna Seller NO TUNER NEEDEDTHIS IS THE UJM-40-10EFHW This antenna is made by using a matching network consisting of a 49:1 bifilar wound toroid with the needed capacitance added for wide, multi band, no tuner needed operation. PLEASE LOOK AT ALL PICTURES TO SEE THE DETAILS AND CRAFTSMANSHIP! I NOW OFFER A 75/80 METER RESONATOR KIT FOR THIS ANTENNA THAT ONLY ADDS APPROX 6 FEET TO THE ANTENNA LENGTH! FOR THOSE IN TIGHT SPACES THIS IS A GAME CHANGER. That kit is eBay item number 203336978970I also offer a full length 80-10 meter version of this antenna. Click on my items to see that antenna. This sale is for a true, half wave end fed antenna for 40-10 metersThis antenna is rated at 200W PEP and 75W digital/CW@50/50 duty and is PERFECTfor both portable or permanent installations! This antenna comes complete with 65 feet of stealthy but strong MARINE fully tinned 18AWG insulated stranded copper wire, dogbone insulator and all Stainless Steel hardware on the matching box. Marine wire is tough and made for harsh environments. The box is sealed with a foam gasket as well. Without a tuner the antenna works 40,20,15, 10 and usually 12 meters as well. 12 meters will depend on your setup.With a decent tuner you can also tune 30 and 12 meters and 17 meters. You cannot tune 80m on this antenna. That 80-10m version will be in one of my other listings for a few more dollars and is 130 feet long. One of the great things about this antenna is that the height you mount it will have a smaller affect on SWR than other antenna types. This gives you a large flexibility in your installation. One huge advantage of these antennas is that they typically have very good "ears" with a low noise floor! As you can see from the picture the antenna box does come with the mounting eye-bolt wired for optional ground however with this type of antenna adding a ground or counterpoise will have little to no affect on the antenna tuning and is not needed since it's built as a DC ground potential antenna already. Also, NO RF CHOKE NEEDED IN MOST INSTALLATIONS! That said, a rf choke is always good practice 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 Another advantage of this antenna is the endless ways you can deploy it. I recommend a simple sloper installation and you can mount the box close to the ground with your element sloping upwards. When installed as a sloper you will see fantastic results if you can get the far end of the element up to 25' or more. That being said, you can install this antenna: horizontal, vertical, inverted "L", zigzag and more. The screenshot pictures shown above on the Rigol Spectrum Analyzer and SWR at the radio are shown with the antenna in a sloper configuration with the box fed at 5 feet and the far end up at 27' from the ground fed with 75' of LMR400 coax. Your unique installation may vary those reading a bit. This is a very simple antenna to install and no extra instructions are necessary but if you do have any questions please feel free to ask. Simply secure a cord to the mounting eye-bolt and stretch out your element for your installation and secure it. Great for ALE HF-link stations, NVIS, MARS, ARES, EMCOMMI have produced and sold more than 15,000 antennas here on eBay alone and still maintain a 100% positive feedback for a reason. everything I make and send is made by myself, no help allowed and only made as if it were as my own antenna. I feed my family this way and so my customers ALWAYS get the highest level of quality and customer service I can provide. To put it simple, my livelihood depends on it. If anyone has an issue at all, please just send me a message through eBay and I will take care of you as I have done on here for over 7 years now. I also have 9:1 unun Random Wire Matchboxes that are designed to be used with a tuner on all bands with a *random* length wire as well. PLEASE LOOK AT MY OTHER LISTINGS!73KD8UJM