Saturday, December 18, 2010

NOAAPort Signal Changes March 2011

In March 2011, the NOAAPort signal will change from DVB-S to DVB-S2.  That means if you are using the Novra S75 receiver, you will need a new receiver.  The Novra S200 will work with both DVB-S and DVB-S2.

This change will increase the data rate from 10.24Mbps to about 30Mbps.  There will be a 30 day window between March 5, 2011 and April 3, 2011 when both signals will be present.  After April 3, 2010, the DBV-S signal will be discontinued.

You can read more from this data management notice.

If you use NOAAPort, you need to plan on purchasing a new receiver.  Novra is offering a discount to existing S75 owners.

NWS Map Colors and Priorities

You will find a list of the colors used on the NWS web warning maps here:




The priorities for the colors can be found here:


Tuesday, December 07, 2010

NOAAPort Update

Here is the latest information announced in ADMNCF.


Subject: AWIPS SBN Status Update

On Sunday December 5th at approximately 2100Z, the AWIPS NCF moved all AWIPS NWS sites to a temporary frequency due to SBN interference problems that were found on the original AWIPS SBN frequency.

During the past 24 hours, the NCF has worked with the satellite provider, GLOBECOM, to ensure all interference problems experienced throughout the weekend have been corrected. Today between 1930Z and 2000Z, GLOBECOMM will perform intrusive testing on the original AWIPS SBN signal.

All AWIPS offices are still currently using the temporary AWIPS SBN frequency and will not be impacted by the intrusive testing that is taking place. External NOAAPORT users that are currently using the original AWIPS SBN frequency may experience brief data outages while testing is taking place.

Tomorrow, December 8th between 1400Z and 1500Z, the NCF will re-point all NWS offices back to the original AWIPS SBN frequency. The switch back to the original AWIPS SBN frequqncy will be done remotely by the NCF and sites should not see any downtime as a result of the switch back to the original frequency. Once all sites have been re-pointed back to the original AWIPS SBN frequency, another admin message will be sent.

On December 8th at 1600Z, the temporary AWIPS SBN frequency that was established will be terminated. Any external NOAAPORT users pointed to the temporary AWIPS SBN frequency will need to switch back to the original AWIPS frequency before 1600Z on December 8th.

Thank you for your continued patience while these issues are being resolved.
All NOAAPort users should switch back to 1193.5 before December 8th 1600Z.

Sunday, December 05, 2010

NOAAPort Receive Problems

There have been significant receive problems with the NOAAPort signal today.  After lunch my Novra receiver was not able to lock onto the signal at 1193.5 mhz.  Around 8:00 someone announced that the frequency may have changed.  Our friend Dave, KG4YZY, found out that the new frequency was 1138.5.  After updating the Novra with the new frequency, it is now locked and receiving data.

I don't know if this is a permanent change or only temporary until the original problem is resolved.