AM Signal Booster?
Yeah, yeah, I know. AM radio. Why? Because I'm a knuckle dragging, stone age dweller, that's why. Anyway, I enjoy talk radio and eveywhere we go, it seems ALL of our aftermarket head units (camper,...
Forum Discussion
Although I am not a "fan" of "Wiki" but here is a pretty good explanation of WHY the HD broadcasts do not go as far as the analog main carrier and why my own use/experimentation bears it out..
HERE
"The ratio of power of the analog signal to the digital signal is standardized at 100:1 (?20 dBc), making the digital signal 1% of the analog carrier power. Unlike with subcarriers, where the total baseband modulation is reduced, there is no reduction to the analog carrier power.
On January 29, 2010, the U.S. FCC approved a report and order to voluntarily increase the maximum digital effective radiated power (ERP) to 4% of analog ERP (?14 dBc), up from the previous maximum of 1% (?20dBc). Individual stations may apply for up to 10% (?10dBc) if they can prove it will not cause destructive interference to any other station. If at least six verified complaints of ongoing RF interference to another station come from locations within the other station's service contour, the interfering station will be required to reduce to the next level down of 4%, 2% (?17 dB), or 1%, until the FCC makes a final determination"
HERE
"The ratio of power of the analog signal to the digital signal is standardized at 100:1 (?20 dBc), making the digital signal 1% of the analog carrier power. Unlike with subcarriers, where the total baseband modulation is reduced, there is no reduction to the analog carrier power.
On January 29, 2010, the U.S. FCC approved a report and order to voluntarily increase the maximum digital effective radiated power (ERP) to 4% of analog ERP (?14 dBc), up from the previous maximum of 1% (?20dBc). Individual stations may apply for up to 10% (?10dBc) if they can prove it will not cause destructive interference to any other station. If at least six verified complaints of ongoing RF interference to another station come from locations within the other station's service contour, the interfering station will be required to reduce to the next level down of 4%, 2% (?17 dB), or 1%, until the FCC makes a final determination"
