[SGVLUG] RTL2832

[Dima Kogan via SGVLUG]

yoshio via SGVLUG <sgvlug at sgvlug.net> writes:

> I have a RTL2832 based DVB-T+DAB+FM usb dongle.  It supposedly has a
> R820T tuner on it, but I tried running "rtl_test", and it output:
>
> Found 1 device(s):
>   0:  Realtek, RTL2838UHIDIR, SN: xxxxxxx
>
> Using device 0: Generic RTL2832U OEM
> No supported tuner found
> Enabled direct sampling mode, input 1
> Supported gain values (1): 0.0
> Sampling at 2048000 S/s.
>
> "lsusb" shows:
> ID 0bda:2838 Realtek Semiconductor Corp. RTL2838 DVB-T
>
> When running "gqrx", I can see spikes where radio stations are in the
> waterfall for FM broadcast stations, but I tried decoding with
> "WFM (stereo)", but all I hear is hissing.  I tried playing with the
> squelch.
>
> Can someone try running "rtl_test" and "lsusb"?  I'm wondering if the
> message "No supported tuner found" is causing me problems (especially
> since the place I bought it from specifically said it had a R820T
> tuner.)

Indeed, "No supported tuner found" is bad. I have this device, and it
gets past that point. These devices tend to be very poorly assembled:
I'm on my second one since the first one didn't work at all. This COULD
be your problem. Given how cheap these are, I'd simply buy another one
to test.