SDRTrunk - p25 decoder test release

[DSheirer]

Mike, thanks very much for helping out!

 

[DSheirer]

Well, sorta. I finally got it to decode a control channel, but every time it moves to the voice channel, it just stays there and never goes back to the control channel. Do I need more CPU? Or do I have to enter every frequency/channel manually?

The system: Baltimore City Trunking System, Baltimore, Maryland - Scanner Frequencies

The software will continue to decode the control channel. As each voice channel is allocated, the software will automatically adjust the tuner's center frequency so that the tuner can source both the control channel and the traffic channel(s), as long as all of the channels fit within the tuner's bandwidth/sample rate. It will only adjust the center tuned frequency if it needs to.

Denny

 

[Spleen]

Thanks. And apparently that was part of the problem...BCPD's system is too big to fit inside the sample.

The software will continue to decode the control channel. As each voice channel is allocated, the software will automatically adjust the tuner's center frequency so that the tuner can source both the control channel and the traffic channel(s), as long as all of the channels fit within the tuner's bandwidth/sample rate. It will only adjust the center tuned frequency if it needs to.

Denny

 

[cpetraglia]

Denny,
What is the executable I need to download to start running SDRtrunk?
There are multiple files shown on the google code site.
Thanks,
Chris

(sdrtrunk_0.2.0-beta.7.zip)

This is I think the latest release. It is working for me.

Chuck

 

[cpetraglia]

Denny & everyone.... Here is screenshot that was taken from my MacPro this morning with SDRTrunk fully up and running with aliases copied direct from my windows machine. Computer crashed once, but not exactly sure why as right now it has been running and decoding P25 audio perfectly since 6:45 am this morning.

I have everything working including audio on my local P25 P1 system and I don't see any events population. Is there a software switch to turn this on?

Chuck

 

[vince48]

Chuck
click the "log" in the control channel frequency area, then look at the event tab

vince48

 

[rjdj2000]

Just checked my setup and any of the boxes were not checked. You click on the area where it shows the control channel then you will see the event list that is populated and in the messages tab there will be information scrolling past.

 

[cpetraglia]

Just checked my setup and any of the boxes were not checked. You click on the area where it shows the control channel then you will see the event list that is populated and in the messages tab there will be information scrolling past.

Thanks rjdj & Vince48. It does work.

Chuck

 

[DSheirer]

I posted the downloadable JMBE builder scripts as a release product on the JMBE website:
https://github.com/DSheirer/jmbe/releases

And I updated the sdrtrunk JMBE wiki page to point to this same release page:
https://github.com/DSheirer/sdrtrunk/wiki/JMBE

cheers,
Denny

I updated the JMBE builder program to provide a bit more user feedback and offer solutions when your system is not configured correctly to compile the code. If you've already successfully built the jmbe-0.3.2.jar then you do NOT need to run this script again.

The download links above are still valid.

Denny

 

[cpetraglia]

Lost all Audio

I updated the JMBE builder program to provide a bit more user feedback and offer solutions when your system is not configured correctly to compile the code. If you've already successfully built the jmbe-0.3.2.jar then you do NOT need to run this script again.

The download links above are still valid.

Denny

Maybe you've seen this before. Everything working fine with any analogue or p25 call and all at once I lost audio. Sound card is fine. The indicator in the small audio box does not show the To: and From: anymore.
I am decoding calls fine.
I have tried everything to get it back, no luck.

Chuck

 

[DSheirer]

Chuck,

Yes, we were having lots of issues with the audio playback panel prior to beta 7.

Which version are you using? I just posted version 0.2.0.beta8 this morning.

Did you see any errors in the console window? If so, can you send me the error report, or send me the appllication.log?

Denny

 

[cpetraglia]

Chuck,

Yes, we were having lots of issues with the audio playback panel prior to beta 7.

Which version are you using? I just posted version 0.2.0.beta8 this morning.

Did you see any errors in the console window? If so, can you send me the error report, or send me the appllication.log?

Denny

I am using Beta 7 now. I was able to get the audio up again with reloading JDK and re-compiling the JMBE jar file. Now I have P25 audio with a major amount of reverb. Pretty funny actually.
I will try the Beta 8 and report what happens.
Thanks, for the quick answer.

Chuck

 

[cpetraglia]

SDR trunk-Airspy

Chuck,

Yes, we were having lots of issues with the audio playback panel prior to beta 7.

Which version are you using? I just posted version 0.2.0.beta8 this morning.

Did you see any errors in the console window? If so, can you send me the error report, or send me the appllication.log?

Denny

Denny, I just got my Airspy. Loading drivers was not easy. However I got it working fine in SDR-Console. SDR Trunk recognizes it, but locks up after 10 or so seconds. I've uploaded the error section of the GUI start console.
The whole reason I bought this is for your great program. Can you shed any light?

Thanks, Chuck

 

[mtindor]

Denny, I just got my Airspy. Loading drivers was not easy. However I got it working fine in SDR-Console. SDR Trunk recognizes it, but locks up after 10 or so seconds. I've uploaded the error section of the GUI start console.
The whole reason I bought this is for your great program. Can you shed any light?

Thanks, Chuck

If I were you I would first make sure that your Airspy is running the latest firmware. Then I'd follow the instructions somewhere on the Airspy site to allow you to determine if your Airspy has enough bandwidth across the USB port to perofrm at 10 mbit. I don't think you mentioned the CPU / memory of the machine you are using, but that would probably be helpful to Denny as well.

Ive been running an Airspy (at 10 msps) ever since Airspy support was available in SDRTRunk and I haven't had any problems.

If you are running Airspy on a weak machine, or with a USB 2.0 port, or with a USB 3.0 port that has lousy drivers, or with a bad USB cable, you're going to have issues.

Mike

 

[DSheirer]

Denny, I just got my Airspy. Loading drivers was not easy. However I got it working fine in SDR-Console. SDR Trunk recognizes it, but locks up after 10 or so seconds. I've uploaded the error section of the GUI start console.
The whole reason I bought this is for your great program. Can you shed any light?

Thanks, Chuck

Chuck,
I saw in your other post that you're using Windows 10, 32-bit edition on an i7 with 8 GB of RAM. Do you know if windows is able to use the full 8 GB of RAM, or is it only using 4 GB?

According to Microsoft https://msdn.microsoft.com/en-us/li...vs.85).aspx#physical_memory_limits_windows_10, the 32-bit edition can only use a maximum of 4GB.

If that's true, then Windows will only give Java a maximum of half (2GB) of that memory to use, or even less if Windows is already using a good bit of the available memory.

Apparently you can upgrade from Windows 10 32-bit edition to the 64-bit edition:
How to migrate to Windows 10 64 bit from 32 bit versions of Windows - Microsoft Community

If it doesn't already, upgrading to 64-bit edition would allow your computer to use the full 8 GB of RAM

Denny

 

[cpetraglia]

Chuck,
I saw in your other post that you're using Windows 10, 32-bit edition on an i7 with 8 GB of RAM. Do you know if windows is able to use the full 8 GB of RAM, or is it only using 4 GB?

According to Microsoft https://msdn.microsoft.com/en-us/li...vs.85).aspx#physical_memory_limits_windows_10, the 32-bit edition can only use a maximum of 4GB.

If that's true, then Windows will only give Java a maximum of half (2GB) of that memory to use, or even less if Windows is already using a good bit of the available memory.

Apparently you can upgrade from Windows 10 32-bit edition to the 64-bit edition:
How to migrate to Windows 10 64 bit from 32 bit versions of Windows - Microsoft Community

If it doesn't already, upgrading to 64-bit edition would allow your computer to use the full 8 GB of RAM

Denny

Thanks again for your help. The only way to go 64 bit is with a clean install. I will likely not be able to run many current programs. I also have spent a considerable amount of time and energy getting this PC working perfectly. The upgrade is not going to happen. Here is a question though. When you finally add support for SDR play, will it work as well as it does now or will I run into the same problem with SDRTrunk?

Thanks, Chuck

 

[cpetraglia]

Denny, one more question. Even if I upgrade to 16GB of Memory, will I sill only be limited to 4 GB?
If so, I guess I return the Airspy or build a dedicated PC.

Chuck

 

[DSheirer]

When you finally add support for SDR play, will it work as well as it does now or will I run into the same problem with SDRTrunk?

Thanks, Chuck

I'm adding SDR Play RSP1 support after I change over to a new channelizer architecture. The current channelizer is generating/processing way too much sample data. The new channelizer should reduce the amount of data that it's processing and memory requirements. From what I've read so far, the RSP1 lets you select from a range of sample rates, up to 8 MHz. So, you could run the RSP1 at a rate that your processor/memory can handle.

Have you tried running airspy at the 2.5 MHz sample rate? If your motivation for the airspy was more bandwidth, have you tried running multiple RTL dongles to cover the bandwidth? Another option might be a multi-boot setup where you can select the OS at boot time. I don't know if it's possible, but maybe you can install Win 10 32-bit and the 64-bit side by side?

Denny

 

[DSheirer]

Denny, one more question. Even if I upgrade to 16GB of Memory, will I sill only be limited to 4 GB?

That's correct. A 32-bit operating system only has memory address space for 2 to the 32 power ( 4,294,967,296 ) or roughly 4 GB.

 

[BM82557]

That's correct. A 32-bit operating system only has memory address space for 2 to the 32 power ( 4,294,967,296 ) or roughly 4 GB.

Just curious, what is the memory limit for Win 10 64-bit?


Oops, had a typo in my original Google search, corrected it and came up with this -