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I’ve noticed that 4 stations in my market are now using long station names on their HD radio signals instead of their calls or a short name. These are 92.5, 94.5, 97.9 and 98.7. My car radio and 3 HD receivers at home won’t display these names, so for these stations the display will just appear blank.
I have the old Sangean HDT-1X and that seems to display long names, even on some stations that display calls. These don’t appear to match the long station names, so I’m guessing it’s a different field. I’m in market #5 and it appears that some of the long messages that will appear on the Sangean are still default messages, as they say “HD Radio…HD-Radio.com”. In my market, 90.9, 103.7 and 107.5 will show the HD Radio message. 92.5, 94.1, 96.3, 98.7, 99.5, 100.3, 105.3 and 106.1 will show station names or slogans in the same field. Other stations seem to be blank.

On my Sony XDR-S10HDiP, 94.1 and 105.3 will show a long name, but this seems to be a different from the station name field and the other field the Sangean is showing. For example, 105.3 shows “105.3 The Fan” on the Sangean, “1053 The Fan” on the Sony and the station name is “KRLD”. So it appears that these are 3 different fields across the radios, plus the long station name field.
Anyways, a few questions for the pros:
1. Any ideas what fields are showing on each radio? I can’t find anything in the user manuals that state what fields are being shown.
2. With the 4 stations that run long station names, can these stations run calls or a short name simultaneously? Also, my car radio can receive software updates. Is the long station name a software or hardware issue?
3. Because many radios don’t seem to be able to display long station names, do you think it’s a good idea to use these? Or should stations use calls or short 4 letter names? With my car radio, archived station logos are a sometimes a mess with stations that show long names. I’ll often see the wrong station logo appear. This only happens to stations that have long names. See below:

Just kind of curious how this all works. I’ve read a lot of documentation, including the engineering documentation on HDRadio.com and I can’t seem to 100% figure this out. Thanks!
I have the old Sangean HDT-1X and that seems to display long names, even on some stations that display calls. These don’t appear to match the long station names, so I’m guessing it’s a different field. I’m in market #5 and it appears that some of the long messages that will appear on the Sangean are still default messages, as they say “HD Radio…HD-Radio.com”. In my market, 90.9, 103.7 and 107.5 will show the HD Radio message. 92.5, 94.1, 96.3, 98.7, 99.5, 100.3, 105.3 and 106.1 will show station names or slogans in the same field. Other stations seem to be blank.

On my Sony XDR-S10HDiP, 94.1 and 105.3 will show a long name, but this seems to be a different from the station name field and the other field the Sangean is showing. For example, 105.3 shows “105.3 The Fan” on the Sangean, “1053 The Fan” on the Sony and the station name is “KRLD”. So it appears that these are 3 different fields across the radios, plus the long station name field.
Anyways, a few questions for the pros:
1. Any ideas what fields are showing on each radio? I can’t find anything in the user manuals that state what fields are being shown.
2. With the 4 stations that run long station names, can these stations run calls or a short name simultaneously? Also, my car radio can receive software updates. Is the long station name a software or hardware issue?
3. Because many radios don’t seem to be able to display long station names, do you think it’s a good idea to use these? Or should stations use calls or short 4 letter names? With my car radio, archived station logos are a sometimes a mess with stations that show long names. I’ll often see the wrong station logo appear. This only happens to stations that have long names. See below:

Just kind of curious how this all works. I’ve read a lot of documentation, including the engineering documentation on HDRadio.com and I can’t seem to 100% figure this out. Thanks!