Onboard or card

I hope this is the right section—I'm posting about hardware.

I have a 30-mile wireless link that works okay. It's currently only running a camera that uses around 50 Mbps.

I'm wondering: would it be better to use the onboard radio or an add-on card? The link connects best using NV2.

Is there any performance difference between the two options? For reference, the device is an RB922-US.

Hi,

Could you reedit your post to make it more understandable?