KCBS AM And HD
KFRC FM and HD1
HD and HD 1, A difference??
AM can only carry the main channel in HD with no subchannels, whereas FM can carry multiple subchannels.
That anyone on FM is branding as HD-1, however, is absolutely ridiculous. If you want to promote HD on your main channel, just say "KFRC-FM in HD." Or, more efficiently, "KCBS HD and KFRC-FM HD, San Francisco." You don't see TV stations branding their main channel as "KRON 4.1" or "NBC Bay Area Point One." It's just stupid. Everyone knows that's the main channel. It doesn't take a rocket scientist to figure it out. On subchannels it makes sense, because your dial position is 106.9 HD-2, so "KFRC-FM HD-2" would be perfectly acceptable. But the main channel shouldn't be getting "HD-1" treatment. It's superfluous, not to mention the fact that nobody knows or cares what HD Radio is to begin with.
AM can only carry the main channel in HD with no subchannels, whereas FM can carry multiple subchannels.
That anyone on FM is branding as HD-1, however, is absolutely ridiculous. If you want to promote HD on your main channel, just say "KFRC-FM in HD." Or, more efficiently, "KCBS HD and KFRC-FM HD, San Francisco." You don't see TV stations branding their main channel as "KRON 4.1" or "NBC Bay Area Point One." It's just stupid. Everyone knows that's the main channel. It doesn't take a rocket scientist to figure it out. On subchannels it makes sense, because your dial position is 106.9 HD-2, so "KFRC-FM HD-2" would be perfectly acceptable. But the main channel shouldn't be getting "HD-1" treatment. It's superfluous, not to mention the fact that nobody knows or cares what HD Radio is to begin with.
Haha! No no NO no no, David, YOU read the FCC rule! Here, I'll even provide it for you (courtesy of rule 07-33):
§ 73.1201 Station Identification. (b) Content. (1) Official station identification shall consist of the station's call letters immediately followed by the community or communities specified in its license as the station's location; Provided, That the name of the licensee, the station's frequency, the station's channel number, as stated on the station's license, and/or the station's network affiliation may be inserted between the call letters and station location. DTV stations, or DAB Stations, choosing to include the station's channel number in the station identification must use the station's major channel number and may distinguish multicast program streams. For example, a DTV station with major channel number 26 may use 26.1 to identify an HDTV program service and 26.2 to identify an SDTV program service. A radio station operating in DAB hybrid mode or extended hybrid mode shall identify its digital signal, including any free multicast audio programming streams, in a manner that appropriately alerts its audience to the fact that it is listening to a digital audio broadcast. No other insertion between the station's call letters and the community or communities specified in its license is permissible.
Notice the use of the word "may." This means that a station may use the subchannel in their legal ID, but they don't have to do so, they simply have to identify that they are, in fact, broadcasting a digital signal. "HD-1" is not necessary.
You need to look at who is IDing this way. KCBS 740 radio is a CBS owned station and I believe CBS still has a stake in IBIQUITY,the company behind the AM & FM radio digital standard in the U.S.
IDing this way is all PR . . . especially the use of the letters HD or High Definition. I believe KNX 1070 ( CBS owned ) in LA ID's the same way.
PR to promote the digital standard owned by IBIQUITY.
Make it sound impressive and important,that is what you are hearing.
Al