NTM88 board

[leoaugustoam]

What would these LF and RF be? Are two antennas necessary? Where can I find the schematic or gerber of this attached slide plate?

[ErikaC]

Hello,

L5---LF 

E1---RF

The LF receiver block allows the TPMS to receive signals at 125kHz.

The RF transmitter generates a radio frequency (RF) signal to send the data.

You will find the Schematic and Gerber files in the following link: NTM88 sub-GHz Schematic and Gerber files