GPS Data Logger Software - BT747

BT747 has been updated to cope with new requirements from map providers.

The list of available map providers has been reduced to list only relevant ones.

To limit the requests to these free providers, set a local cache directory from the File menu.  You be able to access previously fetched tiles offline as well.

The Transystem GLOG 760 Logger is affected by the GPS Week Rollover Bug for recordings in memory.  The values read in real time from the virtual serial port over USB are correct.

As a result BT747 was reporting no recordings in the log file as the reported date was in 1999 for recent recordings.

This was changed in BT747 V2.2.1 .  This version accepts dates starting from 1980 and - more importantly - it adds 1024 weeks to any date before 1/1/2009.

A new version of BT747 was released integrating a new AGPS download location.

The application has also been signed with a new signature, https://soft.bt747.org has been updated with these signatures and the jnlp files have been updated to use https.

The code signing key used for BT747 had to be upgraded to SHA-256.

Unfortunately that also revoked the old key and apparently the timestamping was not properly done with the previous signatures.  So the java laucher complains that the certificate is revoked.

All files have been resigned and republished.

You may need to launch:

javaws -viewer

[on windows : "Windows Key + R" to access the execute popup where you can enter this].