DSDPlus rtlsdr_demod_write_reg failed with -9

[Enforcer52]

Getting the following error when starting FMP24-CC.bat:

rtlsdr_demod_write_reg failed with -9

Also when I try to run FMP24.exe with scanlist, get the same error and no audio.
Running latest download version.

 

[RaleighGuy]

Getting the following error when starting FMP24-CC.bat:

rtlsdr_demod_write_reg failed with -9

Also when I try to run FMP24.exe with scanlist, get the same error and no audio.
Running latest download version.

It would help if you posted your BAT command line so we can see if there is an error in that, the screenshots don't show us what you are telling it to do...

Running FMP24 doesn't give you audio without running DSD along with it, DSD is what decodes the signals that FMP24 is tuning to.

 

[Enforcer52]

FMP24 -rc -i1 -o20001 -P0.0 -f154.845


And below is my scanlist for FMP24.exe

154.8450 P25 BW=12.5 DELAY=2 San Jacinto SO
155.7825 NFM BW=12.5 DELAY=2 San Jacinto FD
155.9775 NFM BW=12.5 DELAY=2 San Jacinto EMS
154.7925 P25 BW=12.5 DELAY=2 Trinty Co SO
153.8450 NFM BW=12.5 DELAY=2 Trinity PD/FD
154.7850 P25 BW=12.5 DELAY=2 Polk CO SO
155.8125 NFM BW=12.5 DELAY=2 Livingston FD
155.9325 P25 BW=12.5 DELAY=2 Onalaska PD
156.2175 NFM BW=12.5 DELAY=2 Onalaska FD
155.3100 P25 BW=12.5 DELAY=2 Corrigan PD
154.7400 P25 BW=12.5 DELAY=2 Diboll PD
155.6550 NFM BW=12.5 DELAY=2 Cleveland PD
155.5575 P25 BW=12.5 DELAY=2 Houston Co SO
154.8900 P25 BW=12.5 DELAY=2 Angelina Co SO
155.5425 P25 BW=12.5 DELAY=2 Alabama Coushatta PD
<eof>

Adjusted PPM and the NFM channels are coming in but not the P25

Also in FMP24.exe getting this error

FMPx link error = -5

 

[RaleighGuy]

Are you running the DSD program? Also, make sure the dongle is in a USB 3.0 port, sometimes it has issues in 2.0 ports.
FMP24 runs with DSD

 

[Enforcer52]

Which DSD program loads first, before FMP24.exe? On a 3.0 usb port.

 

[Enforcer52]

Got it working receiving both NFM and P25, but still getting the error > rtlsdr_demod_write_reg failed with -9

 

[dave3825]

If it were me, which its not, I would re- run Zadig on the dongle. Believe I read its either usb or failing dongle which can be seen by PC, but not able to be controlled by PC...

edit

rtlsdr_demod_write_reg failed with -9​

 

[Enforcer52]

Will do that and see if it clears it up. Thanks.

Edit: Switch ports, working ok now, no error.

 

[Enforcer52]

I have a scanlist going that has FM, P25, and DMR. The P25 and DMR work great, but the FM has a signal, stops on signal, but no audio. Have played with ppm no to avail.

Here is a copy of my scanlist. Any suggestions or corrections appreciated.

153.7850 DMR Delay=1.5 Polunsky Unit 1
154.4300 DMR Delay=1.5 Polunsky Unit 2
154.8450 P25 BW=12.5 DELAY=5 San Jacinto SO
155.7825 FM San Jacinto FD
155.9775 FM San Jacinto EMS
154.7850 P25 BW=12.5 DELAY=5 Polk CO SO
155.8125 FM Livingston FD
155.9325 P25 BW=12.5 DELAY=5 Onalaska PD

 

[dave3825]

The P25 and DMR work great, but the FM has a signal, stops on signal, but no audio. Have played with ppm no to avail.

P25, and DMR are digital, and FM (and AM) is not and is handled differently.

Select something other than No Source Audio Monitoring. If you end up hearing static, just enable squelch in Fmpx. I use Monitor Source Audio Always when I monitor a mixed mode scan list.

 

[Enforcer52]

@dave3825 That worked, many thanks. Now to figure out why FM channel name not showing in Channel Activity window, or other windows. Maybe something with DSDPlus.groups file?

 

[dave3825]

Anything analog will not show in the channel activity, event log(s) or groups file as they are not being processed as digital. It sucks but is what it is.

 

[Enforcer52]

Anything analog will not show in the channel activity, event log(s) or groups file as they are not being processed as digital. It sucks but is what it is.

Thanks for verifying that, I thought maybe that was the case, but wasn't sure.