Strange signal on 62mc/s - Page 2 - UK Vintage Radio Repair and Restoration Discussion Forum

Restoration73 · 10th Apr 2017, 9:37 am

Local radiation from crt monitors was once a security issue. Video information from
a monitor in, for example, a bank, could be received outside on a sensitive Band I
receiver. This led to crt monitor manufacturers adding a metallic screen to the
crt enclosure. This harks back to the 405 line days where set makers fitted a foil
screen to their wooden cabinets to limit local lw/mw interference.

10th Apr 2017, 9:37 am	#21
Restoration73 Nonode Join Date: Jun 2013 Location: Surbiton, SW London, UK. Posts: 2,801	Re: Strange signal on 62mc/s Local radiation from crt monitors was once a security issue. Video information from a monitor in, for example, a bank, could be received outside on a sensitive Band I receiver. This led to crt monitor manufacturers adding a metallic screen to the crt enclosure. This harks back to the 405 line days where set makers fitted a foil screen to their wooden cabinets to limit local lw/mw interference.