New TZT16, installed May 12… and new NOAA chart updates just recently became available. As I understand it… the manual says to use a microSD card no larger than 32gb, to place unzipped update files in the root directory (folder), to insert the card when the machine is off… and when powered on, the charts will be automatically loaded.
I presumed that was describing the same process used in our previous NN3D MFD12, and that the updated chart files would be read into memory on initial startup. Also similar to the update process for TimeZero.
Well, I was having trouble attempting to insert my brand new 32gb microSD card with updated NOAA raster and vector charts, and with some additional sat phot charts that weren’t already present. Eventually I discovered I was having problems because there was already a microSD card installed. 256gb, volume label v21.3.2 and with folders named CMAP, CMOR, Navionics, NOAA USA, etc… raster, vector, sat photos, etc. sub-folders within the NOAA USA folder… and all of the files in all of the sub-folders (I think) appear in the TZT16 chart catalog. CMAP, CMOR, and Navionics charts all locked, of course; the rest unlocked. Removing the 256gb microSD card removed most – but not all – of the charts from the TZT16 chart catalog. I didn’t take notes on it, but the remaining files may have been base maps and similar, or tides? etc.?
???
I added the updated East Coast/Great Lakes raster (01, 02, 03 MAP18, using abbreviated naming) and vector 00 MAP 20) files, and the extra sat photo files I want available, into the appropriate sub-folders in the NOAA USA folder on the 256gb microSD card… and sure enough all the new files appear in the TZT16 chart catalog.
???
And I hadn’t deleted the three now-outdated raster and vector (MAP18) files… but they no longer appear in the TZT16 chart catalog… even though they remain in the appropriate NOAA USA sub-folders on the 256gb microSD card.
???
Q?: The TZT16 is apparently always reading data from the media when using the 256gb card. And some files didn’t disappear when I removed the 256gb card, so I assume those had been loaded into memory. Does using the “32gb method” described in the manual actually load files into memory?
Q?: If so, does that mean response time would be faster if all the files I want are loaded into memory with the 32gb method?
Q?: If so, is there a memory limit, perhaps similar to the memory slot limit on our previous MFD12?
Q?: Speaking of that… did the MFD12 work the same way? One method reading data from media, another method for loading data directly into memory?
-Chris
I presumed that was describing the same process used in our previous NN3D MFD12, and that the updated chart files would be read into memory on initial startup. Also similar to the update process for TimeZero.
Well, I was having trouble attempting to insert my brand new 32gb microSD card with updated NOAA raster and vector charts, and with some additional sat phot charts that weren’t already present. Eventually I discovered I was having problems because there was already a microSD card installed. 256gb, volume label v21.3.2 and with folders named CMAP, CMOR, Navionics, NOAA USA, etc… raster, vector, sat photos, etc. sub-folders within the NOAA USA folder… and all of the files in all of the sub-folders (I think) appear in the TZT16 chart catalog. CMAP, CMOR, and Navionics charts all locked, of course; the rest unlocked. Removing the 256gb microSD card removed most – but not all – of the charts from the TZT16 chart catalog. I didn’t take notes on it, but the remaining files may have been base maps and similar, or tides? etc.?
???
I added the updated East Coast/Great Lakes raster (01, 02, 03 MAP18, using abbreviated naming) and vector 00 MAP 20) files, and the extra sat photo files I want available, into the appropriate sub-folders in the NOAA USA folder on the 256gb microSD card… and sure enough all the new files appear in the TZT16 chart catalog.
???
And I hadn’t deleted the three now-outdated raster and vector (MAP18) files… but they no longer appear in the TZT16 chart catalog… even though they remain in the appropriate NOAA USA sub-folders on the 256gb microSD card.
???
Q?: The TZT16 is apparently always reading data from the media when using the 256gb card. And some files didn’t disappear when I removed the 256gb card, so I assume those had been loaded into memory. Does using the “32gb method” described in the manual actually load files into memory?
Q?: If so, does that mean response time would be faster if all the files I want are loaded into memory with the 32gb method?
Q?: If so, is there a memory limit, perhaps similar to the memory slot limit on our previous MFD12?
Q?: Speaking of that… did the MFD12 work the same way? One method reading data from media, another method for loading data directly into memory?
-Chris