B52 Geo43 User Manual - page 14
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Click , and you can check the version information. Pls see the following:
13
Click the FM transmitter menu and enter the operation interface of
FM transmitter.
2. Open the car radio and adjust it to match the fixed frequency on the GPS.
3. Try to choose the frequency that is unoccupied by the local broadcasting station.
4. If it is with big noise, you can change some different frequencies to test till you find the best one.
1. Move the frequency adjustment button left & right with your finger or click+-to select
afixed frequency.
5. The speaker of the GPS keep no sound when using the FM trans mitter function.