The other aspect of this situation is the random spacing between the wires greatly affects the impedance. I added dental floss to hold the coils together. It made a huge difference.
I bought another unun. This time a 4:1. Opened the box and sure enough I found problems. It had mounting tape this time but was not pushed down on the mounting tape. The toroid was near the cover and touching both coax conector wires. I pushed the toroid down and held it for 30 seconds. It seems to me, their is no quality control with this product. ☹️
The other aspect of this situation is the random spacing between the wires greatly affects the impedance. I added dental floss to hold the coils together. It made a huge difference.
Thanks for the tip
I had no problem with the mounting tape sticking... I had no mounting tape. 🤔
I guess they want to save money at the corporate level?
Yep.. they did offer to replace it but come on use some real 3m not that cheapo china made sh!t
I bought another unun. This time a 4:1. Opened the box and sure enough I found problems. It had mounting tape this time but was not pushed down on the mounting tape. The toroid was near the cover and touching both coax conector wires. I pushed the toroid down and held it for 30 seconds. It seems to me, their is no quality control with this product. ☹️
I've seen foundations in our club. Build better cheaper the spacing on the winds are to far apart. Ldg failed miserably on this
A couple dabs of epoxy….
This is a cheap product, like most ham products.