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Major negative for HD Radio (limited coverage)

maybe the professionals should test the technology in the real world instead just on models. theres room for vast reception improvement via the receivers and the antennas. Grant you the reception and programming is great in city contour :)
 
papaul1967 said:
Seems as though no one is telling us just how limited the HD coverage is due to the fact it causes adjacent channel interfernce. I have heard the the FCC limits the the HD transmitter output to 1% of a stations analog power this would explain why stable coverage is only available in city grade contours. In B class areas the stable HD signals on FM are limited to about 30 miles and its vastly dependent on terrain. AM stations are somewhat better but still suffer from Electrical noise (overhead power lines) when this happens the HD signal goes bye bye and you are listening crapola analog again. There's a major flaw in this system and programming isn't one of them. They should have chosen the international standard for digtial radio.. oh i forgot those frequencies are already in use here....big surprise as we always move down a different path in communications from the rest of world.
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I run a class B station running hd1 and hd2. I am getting about 50 miles coverage with my HD stations. About the time that the HD starts to drop, the stereo starts to flicker. I dont see that with all HD stations however. I am sure that the robustness of the HD signal is determined by how the transmitter is set up. Like analog, terrain is a big part of what you will be able to receive.In regards to international standard. What standard are you talking about? DRM is digital only. Eureka isnt exactly a big hit (ask Canada). HD Radio is in many countries such as Brazil, Thailand, Malaysia, Switzerland and France.
 
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