New ProMark 800 firmware was placed on the ftp site yesterday (May 21st, 2013).
You can read more about the change here [ Info ]
You can download the installation file here [ V1.6.S812Ku26.tar.bz2 ]
The firmware enhances Z-Blade performance under ‘difficult’ (think canopy) conditions; adds QZSS tracking and improves TTFF (Time To First Fix) performance with VRS systems.
I have loaded this new version and I am going to admit that the changes are subtle. Not because they are not there, but because the PM800 had such high performance with the previous version.
If you have not tried a PM800 under canopy yet, you should get your local dealer to run out and give you a demo. The PM800 is just amazing: the performance when traversing under heavy canopy would have been unthinkable a year ago.