• DUDU OS

  • Guide for Adapting Radio Icons for Submissions

SeVeMaS

I agree with you. This is how it should work.
The last few months I did hardly drive my car so I really can't test RDS right now.
But I have the idea that RDS still doesn't work correctly and that they implemented some semi-RDS like navRadio can also use. In NavRadio you can assign multiple frequencies for one radiostation. If RDS doesn't work correctly, it checks one of the alternate frequencies that you assigned.

I think the Dudu local radio does the same. You now assign a location/region where you are. If you select some frequency like 92.6 of station XYZ, it will of course be a "strong" reception in that region and it will have an icon belonging to a radio station. And then you possibly assign a few more stations for your region.
Then you start to drive outside your region, the signal gets weaker, the app starts searching for other frequencies with the same radio name in its frequency/name repository and finds the same station name/logo in its repository on 94.8 which has a strong reception in the new region, and switches over to the new frequency.
No RDS, just predefined alternative frequencies, and as a bonus you have immediately your logo as well.
This kind of "semi-RDS" or even "fake-RDS" could work really well, as long as you stay in your own country and someone made a proper selection of the radiostations over the country.
If I now have good "my favourite radio station" reception all over the country, I am happy with such a solution.

But maybe I am wrong in my assumption.

      surfer63 Poland, RDS works great because it shows up on the bottom bar, maybe only has a slight delay but everything is within reason. Actually, I have to do tests here how it is in the radio application. I think it is similar to the bottom bar.

          wybitny2
          Which RDS part?

          The RDS-PS, RDS-PI, RDS-PTY, RDS-RT(+) and RDS-TA/TP showing you informative text (RT) and switching to stations that currently broadcast traffic information (TA and TP) has functioned since approximately 2016/2017 on the units that have the RDS functionality enabled inside the FM chip. Earlier units came with FM chips without RDS support. Some of the very cheap 7731 units using a very cheap FM chip, still don't have RDS enabled in the FM-chip. Meaning that RDS will never (software based) function on those units as long as the FM-chip doesn't support it.

          I am talking about RDS-AF. That has been non-functioning since 2015 as in China they do not use RDS-AF. Dudu is now trying to get that working for about a year.
          About 6 months ago @DUDU-HUANG suggested to use the same pre-defined alternative stations for the dudu-radio, as can also be used within navradio. Having now the FM-<frequency>-<station>.png for (almost) all regions in a country makes me wonder if they use that system, maybe in combination with "real" RDS-AF. Note that for "smooth" functioning of RDS-AF, like builtin car radios use, you need to have 2 FM-chips. These units do not have that.

            Xaver I noticed that the region you labeled is "Carinthia" (Kärnten) state, rather than a specific city? Apologies for my lack of familiarity with local conditions—do radio station frequencies in different cities within this state not have overlapping allocations?

                LuckyZone
                Hello,
                Yes, i in Carinthia, the same radio frequencies are used in different cities as long as the coverage areas don’t overlap and there’s no interference. But i am Not to fimilar how this exactly is structured.

                Should i better upload specific city?
                I see That Klagenfurt is already there (its in Carinthia)

                    Xaver Due to the power and propagation characteristics of FM broadcasting, it generally ensures that radio station frequencies do not overlap within a given city.You can refer to the structure within "https://drive.google.com/file/d/1wTB84VRQpdIayRJXlNFZnq-GcD9VIE2w", creating a folder for each city.

                      • Wwalon

                        • Post #46
                        • Edited
                        gunma.zip
                        2MB

                        Asia - Japan - Gunma

                          walon
                          In the example, 2-byte characters seem to work fine, but the "群馬" notation in the Zip file seems to have disappeared.

                              • LLuckyZone

                              • Post #48
                              • This post is in 日本語

                              walon “群馬県” has been added to the radio database.

                                6 days later

                                LuckyZone please find attached an updated list

                                cardiff-caerdydd.zip
                                2MB

                                Thankyou

                                    CHR12345 Caerdydd has been updated

                                        Hi, is it possible to get Dudu radio APK?

                                        LuckyZone Hi LuckyZone, following a rescan, addition stations appear to be recognised in this area, please can you add the following two logos with the others, thanks.

                                        cardiff-caerdydd.zip
                                        90kB

                                            Hello. Glad to help your great team who has done an amazing job so far!
                                            Here is the ZIP folder with radios from city of Lisbon, country of Portugal.

                                            lisbon-lisboa.7z
                                            566kB

                                              • SSDenKrUA

                                                • Post #54
                                                • Edited
                                                • This post is in polski

                                                LuckyZone
                                                Europe-Poland-Kraków, Województwo małopolskie

                                                europe-poland-krakow-wojewodztwo-matopolskie.zip
                                                920kB

                                                Updated. Added two radiostations for Krakow 97,7 - Radio Eska and 88,80 - Radio Eska 2.

                                                    • LLuckyZone

                                                    • Post #55
                                                    • This post is in 日本語

                                                    CHR12345 These two stations have been added to the database

                                                      Battoussai Lisbon has been added to the database

                                                        • LLuckyZone

                                                        • Post #57
                                                        • This post is in 日本語

                                                        SDenKrUA Images of radio stations 97.7 and 88.8 have been updated to the database

                                                          Hi, is it possible to get Dudu radio APK?
                                                          I have generic Android radio, installed DUDU luncher and would like to try Dudu radio app. Original radio app sucks.