Amazon.com: Hotspot Module, USB Wireless Multi-Mode Hotspot Expansion Board + Antenna + LED Screen + Case, Support D-Star / P25 Digital Mobile Radio UHF VHF, for Raspberry Pi 3 and for Raspberry
Raspberry Connect - Raspberry Pi Automatic Hotspot and Static Hotspot Installer
Amazon.com: Upgraded Duplex DMR Hotspot WLAN Ethernet Port Assembled Radio Station WiFi Digital Voice Modem Support DMR Dstar YSF P25 Fusion Antenna Raspberry Pi Model 2B Two Colors OLED 2 TimeSlots :
How to connect to the Raspberry Pi using Mobile Hotspot | by Maria Elijah | Geek Culture | Medium
PiFi : Using your Raspberry Pi 3 as a Wifi Hotspot | by Pratush Pandita | Medium
How to use your Raspberry Pi as a wireless access point - The Pi
Install software | Setting up a Raspberry Pi as a WiFi Access Point | Adafruit Learning System
Build a Raspberry Pi Wireless Access Point | Ricmedia
Raspberry Pi Mobile LTE Hotspot Adds WiFi and Network Storage Anywhere | Tom's Hardware