How could I get a shift-corrected Venus China map?
I download "Venus 2013.30 Detailed Map with content of NT17 (Venus-CN-China-2013.30-CHS-NT17.rar)" and unlocked it.
Then I put the unlocked image to Oregon 400t GPSr (non China version) but I found there is still shift exists.
For example, I choose a POI from GPSr, Inter Continental Shanghai Expo.
Its coordinate in GPSr is 31'12.068" 121'30.029".
But I check the same POI in Google Maps, the coordinate is 31'11.949" 121'30.318"!
There is a quite large distance between these two coordinates!
If I miss something?
Should I use a China basemap? or 006B082300.bin files?