Functions of touch button on screen my head unit

[meazz1]

Can someone tell me what are the functions of the two circled menu?

[Jammy]

Hi,
Here is the user manual.
https://mega.nz/#!MFkmhbpJ!m_2cFp2o2nsL ... ezqx8Z7jpc

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Regards

[meazz1]

Sorry for the dumb question;
What's a ST Mode? Is it Station mode? can you explain?
LOC Mode? Location mode? Can you explain?

thanks

[Jammy]

Hi,
ST mode means stereo/stereophony ,one kind of sound effect.
LOC mode means the radio is adjusted to be selective, and the interference of the serial and clutter is minimized,to ensure good reception quality when the listening signal is strong enough for broadcasting. When the switch is in the “remote” position(not LOC mode), the radio sensitivity is relatively high and it is suitable for receiving relatively weak radio signals.
Regards