Posts: 1,808
Threads: 63
Joined: Jun 2019
Reputation:
38
Currently we are looking for some HW solution for FM radio with RDS. Do you have any experience and recommend ready to use solution?
Our requirements are:
- radio demodulation is made on HW board not by SW on RPI
- the best would be USB connection ( not necessary )
- simply settings commands support
- digital audio, rds signal as output
So far we have checked:
- RTL- SDR
- Radio module TEA5767
Posts: 1,808
Threads: 63
Joined: Jun 2019
Reputation:
38
It really looks good. We are wondering if all signal processing for FM is done inside dongle.
Let us know when you will get it.
Posts: 1,808
Threads: 63
Joined: Jun 2019
Reputation:
38
@Vitalic did you get and test this dongle? what are your thoughts?
Posts: 238
Threads: 25
Joined: Sep 2018
Reputation:
3
What help do you need in testing for FM radio in the US?
I would like to have something that also supports RDS.
Posts: 1,808
Threads: 63
Joined: Jun 2019
Reputation:
38
We would like to sum-up the ideas:
As you can see there is no many ideas from users site. We have made a lot of testing with SDR and it does not work, as it generates to much CPU load, other common chips are also not sufficient as audio handling cause some issues, you have to use audio output as antenna or there is lack of RDS/RDBS etc.( like in TEA5767).
Therefore we have started this topic to get some ideas... there was one interesting thing from Vitalic, however after deeper research we doubt it works according to our requirements. Would be good if @Vitalic could let us know.
We do not want to drop this idea, and we are aware that FM radio with RDS can be important to some users. Therefore we would like to consider our own small HW based on this chip: si4704 , as there is no boards available. It is successfully used in commercial products and offers exactly what we need. However we have to estimated the cost and check if this investment will success at all (development costs, testing, prototyping, production ). One of the solution would be to put it on Kickstarter, where we can get direct feedback regarding level of interest from users.
Of course we are still open for other solutions.
Posts: 87
Threads: 14
Joined: Sep 2018
Reputation:
7
Still waiting for the dongle...
Will give feedback asap.