UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post

SteveCG · 26th Jun 2019, 11:39 am

Re post no. 10

G8HQP_Dave: Yes, there is more noise than thermal at 100 Mc/s and lower. It is cosmic noise emanating mainly from our Galaxy - At 100 Mc/s typically it is about 1000 deg Absolute reaching as high as 10,000 deg Absolute towards the Galactic centre, with higher values at lower VHF frequencies.

26th Jun 2019, 11:39 am	#11
SteveCG Nonode Join Date: Jun 2009 Location: Herefordshire, UK. Posts: 2,495	Re: Dormer & Wadsworth (D&W) Re post no. 10 G8HQP_Dave: Yes, there is more noise than thermal at 100 Mc/s and lower. It is cosmic noise emanating mainly from our Galaxy - At 100 Mc/s typically it is about 1000 deg Absolute reaching as high as 10,000 deg Absolute towards the Galactic centre, with higher values at lower VHF frequencies.