I have just a RTL-SDR dogle.
I I tune it to 2200m band with following setting:
"00:00                       SDR_0,2200,W2"

and it tunes to 648000 Hz
--------------------------------------
Found 1 device(s):
  0:  Realtek, RTL2838UHIDIR, SN: 00000001

Using device 0: Generic RTL2832U OEM
Found Rafael Micro R820T tuner
Tuner gain set to 49.60 dB.
[R82XX] PLL not locked!
Tuned to 648000 Hz.
Oversampling input by: 64x.
Oversampling output by: 1x.
Buffer size: 4.00ms
[R82XX] PLL not locked!
Sampling at 2048000 S/s.
Output at 32000 Hz.
--------------------------
of course it does not receive locally generated WSPR signals.
On the same hardware rtlsdr_wsprd  works just fine.

From time to time I get the following message:
soxi FAIL formats: bad input format for file `20230120T203800Z_136000_usb.wav.raw': sampling rate was not specified
/home/pi/src/wsprdaemon/decoding.sh: line 432: [[: 10#: invalid integer constant (error token is "10#")
/home/pi/src/wsprdaemon/decoding.sh: line 438: [[: 10#: invalid integer constant (error token is "10#")

Any help ?

Best 73
Pino ZP4KFX

Thanks Rob for your answer ...

I have good filters home made ...

Please consider the RSP1 which is cheap (17$) and comes with some filter ...I have one working with CubicSDR and works down to 10KHz.

Best 73

Pino ZP4KFX

On 1/21/23 00:35, Rob Robinett wrote:

Hello Pino,

I'm sorry to report that WD 3.0 has only pre-Alpha support for RTL-SDRs.  That means that you can define a RTL receiver in the WD.config file and WD will attempt to communicate with it, but the connection will fail in ways which need to be debugged.

RTLs work for LF/MF/HF only when there are good bandpass filters ahead of them and even then they are more expensive than KiwiSDR (when they were still on sale) for multiband WD listening stations.  The WD group is studying successors to the KiwiSDR and both the RedPitaya and the RX-888 seem attractive candidate, each having its own strengths.

But for now WD only works with Kiwis.  

Sorry,

Rob

On Fri, Jan 20, 2023 at 6:34 PM Pino Zollo <pinozollo@...> wrote:

I have just a RTL-SDR dogle.
I I tune it to 2200m band with following setting:
"00:00                       SDR_0,2200,W2"

and it tunes to 648000 Hz
--------------------------------------
Found 1 device(s):
  0:  Realtek, RTL2838UHIDIR, SN: 00000001

Using device 0: Generic RTL2832U OEM
Found Rafael Micro R820T tuner
Tuner gain set to 49.60 dB.
[R82XX] PLL not locked!
Tuned to 648000 Hz.
Oversampling input by: 64x.
Oversampling output by: 1x.
Buffer size: 4.00ms
[R82XX] PLL not locked!
Sampling at 2048000 S/s.
Output at 32000 Hz.
--------------------------
of course it does not receive locally generated WSPR signals.
On the same hardware rtlsdr_wsprd  works just fine.

From time to time I get the following message:
soxi FAIL formats: bad input format for file `20230120T203800Z_136000_usb.wav.raw': sampling rate was not specified
/home/pi/src/wsprdaemon/decoding.sh: line 432: [[: 10#: invalid integer constant (error token is "10#")
/home/pi/src/wsprdaemon/decoding.sh: line 438: [[: 10#: invalid integer constant (error token is "10#")

Any help ?

Best 73
Pino ZP4KFX

--

Rob Robinett

AI6VN

rob@...

mobile: +1 650 218 8896