UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - 6-gang FM stereo tuner heads

Radio Wrangler · 29th Nov 2022, 11:16 am

When having to do fairly extreme TOI measurements in the past, i've sometimes been forced into using older valve-based sig gens with tuned power amp output stages to get broadband noise down. I was suffering from noise*noise convolution with noise and phase noise in the DUT (a receiver) The DUT was giving a floor below -140dBm with 22Hz FDM pilot filter selected.

David

29th Nov 2022, 11:16 am	#309
Radio Wrangler Moderator Join Date: Mar 2012 Location: Fife, Scotland, UK. Posts: 22,894	Re: 6-gang FM stereo tuner heads When having to do fairly extreme TOI measurements in the past, i've sometimes been forced into using older valve-based sig gens with tuned power amp output stages to get broadband noise down. I was suffering from noise*noise convolution with noise and phase noise in the DUT (a receiver) The DUT was giving a floor below -140dBm with 22Hz FDM pilot filter selected. David __________________ Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done