The ZTE MF833V USB Modem was in my glove box, which I knew was not ideal for the cellular reception.
The thought was, I could take the device apart and see if there are any antenna connectors, if so I could just run an external antenna for better reception.
I first needed a Pigtail Antenna WiFi Coaxial Low Loss Cable Mini PCI U.FL to SMA Female Connector Antenna WiFi Pigtail Cable IPX to SMA.
There are two antenna ports on the ZTE MF833V so I needed to use two of the Pigtail Cables.
It worked and I’ve noticed faster internet speeds since adding the external antennas to my ZTE MF833V.