Uploaded January 2021 | Updated September 2026, 2 weeks ago
This is the third in a series of videos following my efforts to track down a source of local QRM / Radio Interference. Following the build of a successful direction finding loop, in this video I build an RF sniffer probe and track down the source of QRM and finally eliminate it! The sniffer is for pointing to suspect items up close when perhaps the loop might be overwhelmed or non-directional if say inside a building.
Here is the link to the first video detailing the local area power-cut: youtu.be/R52V7Nf8uBM
And the second video showing the build and successful use of a direction finding loop: youtu.be/56IUtdBK-7U
I forgot to say in the video, the end result is me buying a free replacement, and hats-off to the homeowner for helping me out!
This is one of many amateur/ham radio related videos on my channel. Please feel free to browse 👀, like 👍🏻 and subscribe 🔔, remembering to hit the bell so you’re notified of new videos as soon as they're published and you don't miss out.
0:00 Introduction
0:25 Review of QRM
1:00 Design & Build of RF Sniffer
2:48 Tracing the Source of QRM
5:25 Closure
Thanks.
Ian.
This is the third in a series of videos following my efforts to track down a source of local QRM / Radio Interference. Following the build of a successful direction finding loop, in this video I build an RF sniffer probe and track down the source of QRM and finally eliminate it! The sniffer is for pointing to suspect items up close when perhaps the loop might be overwhelmed or non-directional if say inside a building.
Here is the link to the first video detailing the local area power-cut: youtu.be/R52V7Nf8uBM
And the second video showing the build and successful use of a direction finding loop: youtu.be/56IUtdBK-7U
I forgot to say in the video, the end result is me buying a free replacement, and hats-off to the homeowner for helping me out!
This is one of many amateur/ham radio related videos on my channel. Please feel free to browse 👀, like 👍🏻 and subscribe 🔔, remembering to hit the bell so you’re notified of new videos as soon as they're published and you don't miss out.
0:00 Introduction
0:25 Review of QRM
1:00 Design & Build of RF Sniffer
2:48 Tracing the Source of QRM
5:25 Closure
Thanks.
Ian.
