eBay's Top Portable Antenna Seller

THIS IS THE UJM-49-1-2010 USED IN ONLY MY 20-10 METER ANTENNA
IF YOU NEED THE TRANSFORMER FOR THE 40-10 OR 80-10 METER ANTENNA, THAT IS IN MY OTHER ITEMS.
NOTICE

 I ship orders the next business day after the order is placed, (Mon-fri). Standard USPS 2-5 day is free but for $6.50 you can upgrade it to Priority 2-4 day. NOTE: IF YOU'D LIKE TO UPGRADE TO PRIORITY MAIL, YOU MUST SELECT IT DURING THE CHECKOUT PROCESS. ONCE YOU'VE PLACED YOUR ORDER, I CANNOT CHANGE IT. If an order is placed over the weekend, it's first in line to go out Monday. 



This matching network consisting of a
49:1 bifilar wound toroid with the needed capacitance added for wide, multi band, no tuner needed operation if the user constructs a quality element. APPROX 3 INCHES X 2.25 INCHES X 1.2 INCHES.
IMPORTANT!! THIS IS THE SAME TRANSFORMER I USE ON MY 20-10 METER 100W END FED HALF WAVE ANTENNA ONLY. THIS IS NOT THE TRANSFORMER USED ON MY 40-10M OR 80-10 ANTENNA. IF YOU NEED THE OTHER VERSION, THAT IS IN  MY OTHER LISTING.

THIS IS THE SAME EXACT X-FORMER USED IN MY COMPLETE END FED HALF WAVE ANTENNAS THAT HAVE BEEN VERY POPULAR FOR YEARS WITH OVER 8000 SOLD!
I HAVE SEVERAL OPTIONS LISTED SO CLICK ON "SEE SELLERS OTHER ITEMS" FOR THOSE OPTIONS.

PLEASE LOOK AT ALL PICTURES TO SEE THE DETAILS AND CRAFTSMANSHIP!

This sale is for a true, half wave end fed antenna transformer for 20-10 METERS ONLY.

This is a direct replacement or the user can build the antenna they wish by using this transformer, but know this. I build and sell the complete 20-10 version with great SWR values. If your match isn't great, that's on you as I cannot control the element you build.

The completed antennas I sell with this same unit is rated at 100W PEP and 40W digital/CW@50/50 duty, less for higher duty modes nand is PERFECT
for both portable or permanent installations! The power handling capability you get with this box will somewhat be determined by the quality and tune of the element you build for it. I cannot promise this unit will handle 100W SSB because you are building the element and matching it. All I can say is what these are known to handle with my complete, tuned element.

You are buying the finished transformer ONLY! You add your element and tune it!
The box is sealed with a foam gasket and a very high quality SO-239 is used and sealed to the box as well.

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.

Another advantage of this antenna type 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 18-25' or more. That being said, you can install this antenna: horizontal, vertical, inverted "L", zigzag and more.

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 ground/ mounting eye-bolt and stretch out your element for your installation and secure it.

Great for ALE HF-link  stations, NVIS, MARS, ARES, EMCOMM

I have produced and sold more than 45,000 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 12 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!

73
KD8UJM