New versions of sdr-core

I have updated the version of sdr-core for both mac and linux to reflect the latest changes from Frank to improve the latency problem.

Also fixed a problem where the DIGU and DIGL filters were the same.

I have also deleted the build and dist directories from the repository. This seemed to be causing some problems with updates. You should manually delete these directories (and all sub directories and files) and then an update should work without any problems. A subsequent build will recreate these directories but they are now not in the repository so should not cause any problems on future updates. This is for both command line svn updates and Netbeans svn updates.

Project Wonderland (Sun MPK-20)

I have been giving a demo of the Java GUI in Sun's virtual office (MPK-20). This is using the open source version of Project Wonderland.

Click on image for large image.

sdr-core rev 162

I am working with Frank on adding gain controls for the input and output of DttSP. The control of the output gain of DttSP will resolve the problem of no audio output that I am seeing with the latest revision of DttSP.

This should also resolve the problem of controlling the transmit drive as I will now be able to adjust the gain on the I/Q output to the transmitter. More to come later ...

The latest rev 72 contains the updated source code for the gain controls and also the updated binaries for sdr-core (both linux and mac).

HAARP - LWA Moon Bounce Experiment

I had a short 8 minute window at 06:30 this morning while the moon was above the horizon so I decided to try to hear the echo from the HAARP moon bounce experiment on 6.7925 MHz.

You can see the 2 second carrier on the waterfall just below the red cursor in the center of the display. Click on the image to get the full size image.

Rogue import

Just noticed that a rogue import got into ConfigureDialog.java which I have now removed and updated on java.net.

Softrock support

I have updated the code to include the start of softrock support. Currently it is receive only and a single center frequency.

As usual an 'svn update' will get the source code changes and then recompile in NetBeans.

New Quicktime video

I made a new Quicktime video of the GUI running including audio.

The video was made using iShowU on the Mac. I had to drop the frame rate down fairly low as it does have problems running at 30 fps along with the GUI, sdr-core, Jack and NetBeans. There is some jitter in the video which is caused by the all this running together.




You can download the actual Quicktime video from java.net. Be aware that it is a large file 34MB.