Screen Call Letters

[Ai4i]

What do they tell the receivers?

I preset an HD2 onto my radio
The station changes their call letter display or I travel to another city with a station on the same frequency.
My receiver does not lock onto the HD2 until I reprogram it on the station with call letters I want to hear.

 

[tomservo]

What radio is it that does this?

 

[Ai4i]

An unknown JVC model car deck.

 

[tomservo]

An unknown JVC model car deck.

Oh. I've never heard of that happening, that's why I asked. Maybe it's a programming glitch in the headunit? The chances of someone coming across a different HD station on the same frequency of a preset HD-2 is pretty slim.

 

[Ai4i]

South Florida stations have HD2's and most frequencies are duplicated by stations in Central Florida which also have HD2's.

 

[radiogooroo]

An unknown JVC model car deck.

I have one of those, and experienced s similar, though maybe not the same issue. On mine, it displayed the station's call letters as ****-FM. Never thought to reprogram it or tune to the station rather than using the preset. This started happening after upgrading the station's HD importer/exporter.

This station's call letters display properly on every other HD radio I've encountered, so I didn't worry too much about it.

 

[JohnnyElectron]

Radio Shack sells a decent unique tiny MP3 player / FM tuner - the SANSA "SlotRadio". Very easy to use for even my technotard parents. BUT - the RDS / HD call letters display incorrectly for every Clear Channel station in town! Their call letters read fine on my car RDS and Insignia portable, but theis Sansa SlotRadio shows "K" call letters when I'm in "W" call-letter country! Must be something buried way down in the RDS generators, as the Cumulus stations read correctly, and the dynamic data reads correctly; it's just the static call letters that are grossly incorrect on these units. Any ideas?

 

[fybush]

It's a feature, not a bug


No, seriously...there's something in the datastream that CC stations use to send traffic data that also requires the use of nonstandard PI codes in the RDS. For radios like the Slot that use the PI code to generate the callsign display, that means an incorrect callsign ends up being displayed.

It's a known issue, especially in the DX community.

 

[spunker88]

Perhaps its storing the call letters or something and when that doesn't match another station even though it has the same frequency and number of HD streams it refuses to play it as a preset.

Ive seen some DTV boxes that do the same thing. They will refuse to play a second channel that has the same PSIP and real channel number as a preset station. You have to rescan to get it to work.