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July 10th 06, 10:36 PM
posted to rec.radio.shortwave
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HD-IBOC - The Death of AM/MW Radio Listening . . .
Doug Smith W9WI wrote:
wrote: - Agree.. ANY way of filtering this out ? Buy a HD radio. Seriously. The Boston Acoustics Receptor HD, when tuning *analog* stations, seems largely immune to IBOC QRM from *digital* stations on adjacent frequencies. The set uses digital signal processing of analog signals; I might guess that it uses the opposite digital sideband to cancel out the one that's interfering with the desired analog station. In general, my experience has been that the Receptor HD is a pretty decent analog radio, both AM and FM, if you give it a decent antenna. (the antennas provided with the radio are crap) Of course, it is pretty expensive as well! - Of course, the problem for the radio industry is that - almost nobody *has* a Receptor HD - when the - interference cranks up, people will buy XM or Sirius, - put in a CD, or turn on the TV long before they'll buy - a HD radio. DS [W9WI] - Yes in spite of the idea behind HD-IBOC AM/MW Broadcasting as being the 'savior' of AM Radio. Many DX {Out-of-Area} Listeners may simply Turn-Off the AM Radio and Turn-On something else. ~ RHF In the SF Bay currently I can hear many Out-of-Area AM/MW {Analog} Radio Stations like : Sacramento - KSTE 650 kHz and KFBK 1530 kHz Fresno KRE 580 kHz With HD-IBOC these AM Signals will be under the Digital Signal Hash an no longer be able to be heard. * With HD-IBOC these AM Signals will be under the Digital Signal Hash an no longer be able to be heard. * Local Only - HD-IBOC will result in about 30 AM Radio Stations that could be heard easily with 6-7 of those being so close to the each other that the number may even be smaller. In the Twain Harte, CA currently I can hear many Out-of-Area AM/MW {Analog} Radio Stations like : Sacramento - KSTE 650 kHz and KFBK 1530 kHz Fresno KRE 580 kHz * With HD-IBOC these AM Signals will be under the Digital Signal Hash an no longer be able to be heard. * Local Only - HD-IBOC will result in about 9 AM Radio Stations that could be heard easily. -- Doug Smith W9WI Pleasant View (Nashville), TN EM66 http://www.w9wi.com |
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