Active Loop – M0LMK

12/09/201912/09/2019

Inside the MLA-30 Active Loop Antenna

You’ve probably seen the MLA-30 Active Loop Antenna on Ebay. It can be had for a bargain price of around Â£35 and works great for the price. There’s only one problem in my book; the PCB is covered in epoxy potting and you can’t see the design or repair/modify it! Something that I’ll have to fix!

What follows is the results of 45 minutes in the kitchen with a pan of boiling water and a pair of tweezers. Behold, the MLA-30 in all its naked glory! Continue reading “Inside the MLA-30 Active Loop Antenna”

Active loop antenna for HF

I’ve got an ever increasing noise floor at my QTH so I thought I would try an active HF loop to see if I can null out the worst of the noise.

I found a simple design on-line and used it as the basis of my loop. The original site unfortunately no longer exists but I did manage to save the design here. Continue reading “Active loop antenna for HF”