USB & WiFi help

[KD88]

I'm in the process of installing a single din 7" module number JY-UQS03N4G.
On the rear there is built in 5g WiFi antenna plus 2 sma's, one for 4g DIV and the other for 4G PIR.Whats the difference and should I connect both the supplied WiFi antennas to the 2 sma's?
Also there are 3 usb ports, one on a cable and two on the chassis. Do they all do the same job or should I use each one for a spesific application?
I'm going to be using a DAB adaptor so which usb port would be best?

[admin]

(07-29-2023, 10:51 PM)KD88 Wrote:  I'm in the process of installing a single din 7" module number JY-UQS03N4G.
On the rear there is built in 5g WiFi antenna plus 2 sma's, one for 4g DIV and the other for 4G PIR.Whats the difference and should I connect both the supplied WiFi antennas to the 2 sma's?
Also there are 3 usb ports, one on a cable and two on the chassis. Do they all do the same job or should I use each one for a spesific application?
I'm going to be using a DAB adaptor so which usb port would be best?

Two 4G antennas need to be connected.

Normally, three USB ports can be used.