Nooelec and op25

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Watton925

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I have op25 running fine on rpi4 with rtl-sdr v3 but when I switch it to my nesdr smart I get nothing and I have blacklisted the drivers they recommend. Same nooelec dongle works fine on windows computer. Any help??
 

boatbod

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Check the 'dmesg' command to see if the device is having issues. I've experienced USB connector failure with some of mine, even when using extension cables.
 

Watton925

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Well I can see from the plot that I’m getting good signal but op25 seems not to see it could it be some thing in my command line I use to run it ?
 

Watton925

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./rx.py --args 'rtl' -N 'LNA:36' -S 960000 -f 453.4750e6 -l 'http:0.0.0:8080' -o 25000 -q -2 -O hw:0 -x4 -T trunk.tsv -V -2 -U 2> stderr.2 This works fine with rtl-sdr v3
 

a417

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./rx.py --args 'rtl' -N 'LNA:36' -S 960000 -f 453.4750e6 -l 'http:0.0.0:8080' -o 25000 -q -2 -O hw:0 -x4 -T trunk.tsv -V -2 -U 2> stderr.2 This works fine with rtl-sdr v3
are you intentionally applying a -2 offset to this new dongle as well?

remove "-q -2"
 

boatbod

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Please post a screenshot of the mixer, datascope and constellation plots along with any relevant messaging in the stderr.2 logfile.
 

maus92

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especially the unpowered simple extension cables, the active cables have given me more success.
I must have purchased good ones - I use 10' unpowered USB 3.0 extensions and Nooelec SDRs with no problems. The Nooelecs are 0.5ppm error, so they need little correction; mine don't use any. My RTL-SDR v3 are ~1.0ppm.
 

a417

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I must have purchased good ones - I use 10' unpowered USB 3.0 extensions and Nooelec SDRs with no problems. The Nooelecs are 0.5ppm error, so they need little correction; mine don't use any. My RTL-SDR v3 are ~1.0ppm.
I have one good 10' extension as well, the problematic ones are the little cheapo 1 to 3' disposable ones. For distance runs of 10' or more, I was referring to the powered USB repeater extensions that go out to 30' w/o an issue...
 

Watton925

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My next issue is how to port the audio to Bluetooth or to my usb sound card correctly it works fine thru HDMI
 

Watton925

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No it is not headless I’m pretty sure it has to do with the HW value can not figure it out.
 
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