How is it not analog? DAB + is not there, so it is probably not a digital radio. There is AM and FM also analog radio only.
The FM radio is analog, the tuner described here is a device with a digital signal processor. In details, it differs from regular FM radio, but in blocks it is the same. It has high sensitivity and selectivity, and in addition, digital processing significantly improves the reception parameters.
This is what it looks like at 120 kW stations from the nearby (10 km) RTCN in Sucha Góra, for example, this is how the Three looks like:
Yes, Jedynka - just like RMF FM
At weaker local stations, not broadcasting from RTCN, and from other venues, a bit changes, e.g. here Złote Przeboje:
Trendy Radio here:
And this is what it looks like at distant stations. Here is One of the Holy Cross:
In places where there is nothing (noise) it looks like this:
Generally, this FM tuner receives very well, it is very selective. Yesterday evening I caught RMF FM, Jedynka and Trójka from Raszyn, 300 km away from me. The three of them were in a slightly humming stereo, sometimes even loading RDS. It is weak on AM, but it is probably because the antenna (Dipol 3 RZ B) is an antenna for the VHF FM band. All it catches is some Russian station on 999 kHz. At 225kHz, where the One should be, I only have noise.
And what are the RF + and IF + options? This is some gain, when I click, the amount of dBf increases, but there is no difference in reception. Maybe someday, when I have some time, I will record and throw some bandscan.
You must have some very old soft in this atm, the signal level varies by 1 dB, you have no decimal values, and that was done quite a long time ago. Note that in my graph you can see what is happening between 77 and 76dBf.
You must have some very old soft in this atm, the signal level varies by 1 dB, you have no decimal values, and that was done quite a long time ago. Note that in my graph you can see what is happening between 77 and 76dBf.
What could such differences result from? I also bought this tuner module, but I did not run it - I was wondering what to control it? What's going to be the best?
Well, I wrote that he has an old soft in the processor, which is between the tuner and the computer. In the first post, I turned on the soft, which has it already covered.
@dktr I checked - these Arduino have Atmega328-20AU (SMD case), Arduino Nano (and clones) and ATmega328P-U (DIP case) Arduino Uno (and clones). Did you do everything yourself with this microcontroller? Do you have any buttons and LCD connected?
I don't use arduino, I prefer bare atmega. But when the m328 sits there, it will be fine. This is how I connected displays, buttons, encoder, IR receiver, etc.
Nothing, only the housing, transformer and cinch sockets remained from the Denon. Decorated front-panel buttons on universal boards, VFD display from a fiscal printer :)
It sounds like TEF6686. Originally the Denon worked, but its parameters were much worse than that of TEF - when it comes to sensitivity and selectivity. In addition, it already had a bright VFD display and almost nothing was visible, so I treated it as a housing donor
Decent results, have you tried with a better antenna? I used the Quad in my apartment and it sounded pretty good - I have a maximum of 7-8 km to a dozen or so stations, and I would be able to receive it on the wire. But there is a difference - a good FM tuner compared to a home theater.
I bought the TEF6686 FM tuner module, but I didn't start it - from what I can see, the simplest controller should handle it (in the sense of the simplest Atmega).
