December 2011 SDI GVAR
Sounder Decoder Update

Note: Only SDI GVAR sites that run the Sounder Decoder need to install this update. (For more information about the Sounder Decoder, see the GVAR chapter's Overview and Operating Procedures in the SDI Operator's Manual.)

The sounder decoder on SDI GOES systems were updated in December 2011 to correctly identify 185 as the sensor source number for GOES-15 Sounder data. Rather than packaging a completely new version (like 2005jun01), we are distributing the updated decoder binary for you to install in the /opt/sounder/bin directory. See the SDI GVAR Software Changes page to see the list of changes for all versions of SDI GVAR available on the McIDAS Website.

You can obtain the file in step 4 below if you purchased MUG support for your SDI GVAR system or have been contacted and been given approval by SSEC. You will be prompted for your site's login and password when you attempt to download the installation files. If you do not know the login and password, ask your site coordinator. If you know the login and password and still have a problem obtaining these files via the web, ask your site coordinator to contact the McIDAS Help Desk by e-mail or by phone at (608) 262-2455.

Complete the following steps to obtain and install the software.

1. Login to the SDI GVAR workstation as user root.

2. Change to the /opt/sounder/bin directory.
   Type: cd  /opt/sounder/bin

3. Make a backup copy of the existing decoder binary by renaming it to decoder.bak.
   Type: mv  decoder  decoder.bak

4. Install the updated binary by downloading the following file to the /opt/sounder/bin directory.

   File name	Size	Description
   decoder	4868 KB	sounder decoder binary

5. Use the chmod command to give the new decoder binary the correct permissions.
   Type: chmod  755  decoder

6. Stop and then restart the sounder decoder.
   Type: /etc/init.d/sndcntl  stop
   Type: /etc/init.d/sndcntl  start