In January 2010 Trimble made firmware updates available for the Resolution T as well as for several other GPS modules to accomodate some changes to the GPS signal structure. The upgrade firmware provided for the Resolution T was version 1.17 and this is still the version currently available from Trimble's Resolution T product page. However, when testing some GPS modules today I found a Resolution T with a manufacturing date of 2007 but containing firmware version 1.20 of 21st April 2010, so it's obviously been updated, but I've not been able to find any reference anywhere online to a version greater than 1.17. Does anybody have any information please as to what might be different in 1.20 and/or have any information as to whether or not Trimble ever makes firmware updates publicly available unless obliged to do so because of obvious significant operating problems? Regards Nigel GM8PZR _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.