Dear Uwe, LF Group, quotation Terman ed.1943, page 128 on shielded air coils: ...shields... increase the losses as a result of energy dissipated in the shield by the eddy currents. However, if cleare
Hi Uwe, The clearance between the Decca coils and the screening was at least 2.5x coil dia and the calculated loss assuming perfect continuity between copper sheets was less than 0.1 dB. The trick is
Walter Blanchard schrieb: Only just saw the postings re Decca coil screening. My Decca pal tells me he lined Decca Tx coil huts with copper (thin - 20g) to maintain constant dielectric environment an
Only just saw the postings re Decca coil screening. My Decca pal tells me he lined Decca Tx coil huts with copper (thin - 20g) to maintain constant dielectric environment and constant phase. The whol