Easy to built (very good instructions on website) and easy to tune with a FG-01 Youkits analyser.

I have bought several of these kits. I had some problems with the capacitors, but customer support found out and everything works great now. For 14MHz I had to remove one of the turns(100W) to resonate with the Silver Mica capacitors. No worries, but a antenna analyzer is needed to make your traps the way you need. Great quality of the PCB. It will last for long!

I bought these traps to try out a W3DZZ antenna, as I like the frugality of it and this equates to lightness in the backpack! The instructions for W3DZZ traps include a lot more turns than for their intended use and I wondered if the winding wire was long enough. I should not have worried! A lot of thought has gone into these traps, and the result is to my mind a quality product. Only two issues; the enamelled wire needs a lot of heat to melt the insulation - I still use lead solder - and the availability of these kits is making me lazy! Looking forward to testing them.

Build the traps are so simple! You did again good job ! Thanks

I built the traps per the instructions and had no problem tuning them to the frequency I wanted using a MFJ 259B analyzer. I never was successful in getting a multi band dipole to work with them. The PCB that the traps are built on are very rugged to withstand my many attempts with soldering and unsoldering the series to parallel trap jumper and adding and removing turns on the coil to change frequencies. I finally gave up but will return at a later date to try and make it work.

Excellent ,easy to build even when the eyes are not quite what they used to be. Works very well

I made up two traps for 20M, the only thing that stops me giving them 5 stars is that the table for calculating the turns was, for me, a bit off. I found I had to take off two turns which, when you have already soldered the wire on the torriods in, is a bit of a nuisance. The tuning system is a great idea and I found it quite easy to test the 1st trap, sort out the number of turns needed, and then use this for the 2nd trap to get a matched pair. One other thing, if you decide to go for the 'low loss' trapped dipole, where the traps are tuned below the bottom of the higher band, then expect to have a few trial runs to get the antenna to be properly resonant on both bands. It does warn you of this in the instructions, which is why I'm not blaming the traps for this fact. For this reason, if you are going to use the liquid tape on them, make sure the antenna works before you seal them in as unsoldering will be difficult after smothering them in the liquid.

I've just completed a pair of matched traps for 17m. This is a very neat bit of kit at a reasonable price It's very easy to produce a matched pair of traps using the test points on the PCB for your antenna analyser. The PCB construction is very good, the rest is up to you! I managed to achieve 'text book' dip on 17m with my AA200, the next step is to build the dipole etc. The advantage of these trap kits is that the toroids can be taken out and re-wound for another frequency very easily, all the instructions are in the download from the Sotabeams website.

SOTABEAMS has done it again! Their new antenna trap kit is quite unique. It combines a low price with great utility. The best part of the kit is the clever scheme for tuning them spot on. I built up several and found them easy to construct and tune. Crude testing in my house shows that they are quite close in frequency. Warmer weather will allow evaluation at my favorite qrp portable operating site. Mine were tuned "in-band". I'd like to see some detailed tuning instructions and results for out-of band tuning. By all means don't forget the protection of liquid electrical tape.