Monthly Archives: October 2012

Group looks to overhaul of AM regulation in US

An ad-hoc group of engineers is investigating the idea of a complete overhaul of regulation of AM Radio in the…continue reading

AM Power and Operational issues

AM Station Power Class Present Maximum Proposed Region II US-Mexican US-Canadian A 50 kW Day 50 kW Night 100 kW…continue reading

AM Transitional Hours Proposal

AM Radio waves propagate by groundwave at all times, but at night the signals also propagate by skywaves.  Medium wave…continue reading

Proposed AM NIGHT Allocations Standards

Protected Contours Class Protected Contour (Pres) Protected Contour (Prop) Region II US-Can US-Mex A Co 0.5 mV/m 50% SW *…continue reading

Proposed AM DAY Protection Standards

AM stations rarely have regular listeners outside the 1 mV/m groundwave contour because noise levels preclude interference free service, and…continue reading