UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Using theTECSUN AN-200 AM MW Tunable Medium Wave Gain Loop

Andrew2 · 14th Oct 2021, 4:28 pm

Probably not, as the noise picked up by the wire aerial will just be passed on via the loop. There is one chance though. If you are prepared to do a lot of fiddling, you may be able to find a position of the loop in which the noise from the wire is in opposition to any noise picked up by the loop, thus reducing the noise even further.
It's a crude version of the 'QRM Eliminator' devices which take two inputs and subtract one from t'other.

14th Oct 2021, 4:28 pm	#2
Andrew2 Nonode Join Date: Mar 2010 Location: Dukinfield, Cheshire, UK. Posts: 2,038	Re: Using theTECSUN AN-200 AM MW Tunable Medium Wave Gain Loop Probably not, as the noise picked up by the wire aerial will just be passed on via the loop. There is one chance though. If you are prepared to do a lot of fiddling, you may be able to find a position of the loop in which the noise from the wire is in opposition to any noise picked up by the loop, thus reducing the noise even further. It's a crude version of the 'QRM Eliminator' devices which take two inputs and subtract one from t'other. __________________ Andy G1HBE.