DSD FME

EI9BAB

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What version are you using? The filename was re-written a good while back. The special character is a : and at the time, I didn't know you couldn't use those in filenames in Windows (Linux didn't care) but its using the 20250814_112037_19839_EDACS_SITE_001_Digital_Group_Voice_Call__TGT_628_AFS_04_144_SRC_LID_UNK now.
Thanks for the explanation. I was using the latest updated CYGWIN version but I was using the original DSD-FME instead of the AERO version which is newer. I am using that now and the filename is sorted. Thanks for your help!
 

lwvmobile

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Anybody who would consider themselves knowledgeable or power users of DSD-FME, and have an RTL dongle, we are seeking feedback on a new branch of code that overhauls the RTL input and from our limited testing. You'll need to be able to compile the source code yourself from the rtl_overhaul branch and test out with limited or zero hand holding. Initial testing shows much better reception with a variety of systems, but we can't test every edge case, so testing and feedback on your local systems would be most appreciated.

More information can be found here.
 

jamesvoll

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@lwvmobile are you adding new encryption systems? I have a DMR radio whose encryption is not yet supported by dsd-fme. If so, how can i send you the capture files because they are too big to put them here.
 

radioopperator

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file.io grate for sending files. no sign up at all. saves them for 7 days for the free account.
 

lwvmobile

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@lwvmobile are you adding new encryption systems? I have a DMR radio whose encryption is not yet supported by dsd-fme. If so, how can i send you the capture files because they are too big to put them here.

And which kind would that be? If you want to submit samples, upload them to a file host of some sort and paste the link in the forum here.


 

jamesvoll

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I would like to send you the samples and information in private message, but I am not allowed to send private messages.
Maybe if you write to me privately I can answer?
 

jamesvoll

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I play a DMR baseband file but dsd-fme doesn't decode anything, what should I do? This works fine with a normal wav file.

baseband.png
 

ki4hyf

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The picture shows that it's missing P25 Phase2 parameters. You need to add them to your command line, like:-X BEE00123456. Where the BEE00123 is your system and 456 is the NAC. It should decode okay then.
 

jamesvoll

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The picture shows that it's missing P25 Phase2 parameters. You need to add them to your command line, like:-X BEE00123456. Where the BEE00123 is your system and 456 is the NAC. It should decode okay then.
No no, it's not phase 2 of the P25, it's the DMR. I used dsd-fme -Z for auto-detection, with a normal wav file it works fine but with a baseband file it doesn't display anything or shows a tiny bit of incorrect P25 frame.
 

ki4hyf

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Just out of curiosity, what is the source of the baseband file in question?
 

lwvmobile

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How is the audio routed? If you are to do something like this, you typically need some VC-cable to route audio from SDR# to DSD-FME. Also, since its SDR#, you'll need to hunt down and disable the multitude of audio processing like high pass, low pass, de-emph, and whatever else if you are using the community version with the 1000 mods on it.
 

Marco192

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I finally took some time and got dsd-fme to work on an DMR TIII system.
Maybe some can help me with some details ...
Is there a way to display and log network registrations and other events that go on the control channel, similar to dsd plus (I understand that everything is included in the log file, but that is a huge amount of entries)?
Is there a way to stop the dsd-fme hunting for control channel when the CC signal is unstable? I am using SDR++ as the receiver.
Everything runs on Windows 7
 

jamesvoll

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I was given these files, I don't know how they were recorded. I play them with SDR#
if I amplify the baseband file with Audacity, I can see that there is sound:
baseband.png


Here are all the baseband files I have, could someone test if they can decode them with DSD-FME?

 

lwvmobile

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Here are all the baseband files I have, could someone test if they can decode them with DSD-FME?

You have to open those in something like SDR# or SDR++ as a baseband file, and then set the frequency to the observed activity on it and decode it that way. From my quick tests, it looks like somebody thought it was a great idea to record large baseband files covering 10 Mhz in bursts of about 3 seconds each. No idea what they were trying to accomplish with those, other than to annoy the person attempting to listen to it.
 

guilhermerrrr

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I've been playing with this some and I have been able to get the date, time, frequency from the file name. Because Rdio-scanner requires a default talkgroup to be entered in separately, none of the Talkgroup or uid info is being populated in. For now, I have blocked, in the Group csv file, the talkgroups that I'm not interested in listening to. Is there another way to stream DSD-FME to my android phone that will be able to show the meta data?
Hey, I just answered your question on Rdio-scanner github, I don't know how, but I works :LOL: . I suspect the problem is the random text generated after the time. What worked for me was using \d+ where those numbers appear.

This is my file name and the mask I applied on Rdio Server:
20250913_221123_13478_DMR_CC_4_GROUP_TGT_1_SRC_3003.wav -> #DATE_#TIME_\d+_DMR_CC_4_GROUP_TGT_#TG_SRC_#UNIT

I explained a little more in depth the steps I took (spoilers: with the help of Chatgpt lol) on Github. Good luck!
 
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