Having a longwire antenna in a noisy suburban area can be a challenging situation for a shortwave listener. In the video below I was simply experimenting on how I can reduce noise and improve my reception whilst I am listening.
A little about the setup. Antenna is a 35ft sloping end fed wire with a 9:1 balun, receiver is an SDRplay RSP1 and the software is SDRuno. I do have a Global AT2000 inline but for this video it was in passthrough.
I wanted to see what difference a ground wire would make to my reception. I have no ground stake at the moment so the only metallic object I had going into the ground was a rotary washing line pole which goes down a few feet.
I connected a wire from the balun down to the pole and checked the results on BBC Radio 5 Live on 693KHz. I was amazed to see the signal appear out of the noise, results which can be seen in the video.
I have had a comment or two to say that the wire is acting as a counterpoise, which maybe it is, I am not a licensed amateur radio operator (yet!!) so my knowledge is limited. The hobby, as I am finding out is all about experimenting!