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#32
October 13th 07, 05:13 PM
posted to rec.audio.tech,rec.audio.car,rec.radio.shortwave,ba.broadcast
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DRM -Ain't- IBOC
RHF wrote: On Oct 12, 8:52 am, SFTV_troy wrote: RHF wrote: On Oct 11, 5:48 am, SFTV_troy - There's no real difference between DRM's version - (sitting next-to the AM signal) and HD's version - (also sitting next-to the AM signal). IBOC AM/MW "HD" Radio - Hybrid Mode http://www.dallas.net/~jvpoll/rfi/AM...BOC_Mask10.gif - Lower Digital Sidebands {Co-SideBand} * Analog Host Signal (Mono) {Nested} + Upper Digital Sidebands {Co-SideBand} - Thanks for proving my point. HD sits *next to* the AM signal (+/- - 10 kHz). Same as DRM sits *next to* the AM signal (+/- 10 kHz). DRM = Simulcast without Specification {Sans-Mask} x x x Does Not Equal x x x IBOC = Intrinsic {Mask} : Nested Analog + Two Digital Co-Sidebands I still don't see the difference. Both standards are using sidebands, adjacent to the analog AM signal. |
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