Thread: Garmin City Navigator China 2013.30 Official + Venus

Originally Posted by nijawang

Hi,

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?

Thank you.

Spoiler: image

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You already have the right Venus shift-corrected map installed. If you enter your GPSr coordinates to Google Earth (NOTE: not Google Map) you will find it is exactly the location of that hotel, even with 3D view of the building.

The Google Map you quoted has shift added to it as required by the law of PRC.