PXU1900 USB Modem to 18dBi flat panel antenna kit

[dukduk007]

Hello
I purchased the 18dBi flat panel antenna with the kit.

The PXU1900 modem has two male slot in the back, which one should i connect the pigtail cable to?? thanks

[thuor]

Plug it into ANT1 as shown in the pic below: