I'm making a RDS decoder to go with my communications receiver and this decoder is intend for 'amateur use' so it can display more information on a LCD then a regular RDS decoder. (like used groups, PI, blok error counter etc. etc.)
For example, it's nice to see that my RDS4000+ has RT/ECC/CLOCK/EON groups
Instead of just PS and RT blocks and all blocks are filled nicely confirm the RDS standard.
But one! bit (yes just one bit) is puzzling me a bit
In block2 (some call it blockB) bits 0,1,2 hold the information for the place (DI segment) where the next two PS characters are placed on the display.
This is and can be done with the value of just bit0 and bit1 but where is bit 2 for?
When i look to my RDS4000+ it looks like it randomly becomes a 1, but there is also a station where it always stays 0...
On another station it's only 1 on position 4 of the display...
My idea/thought is that this bit is a CLEAR THE SCREEN bit.
I have read tons of papers on the RDS standard, but can't find any information of this bit, maybe some of the RDS experts from PCS can tell me if my idea is correct.
I spend to many hours in watching to this bit
to see what is does.Best wishes for 2008 and sorry for the theoretical story.
Greetings Yagi
