This module is easy to plug in your RF Explorer unit and compatible with all models. Optionally, you may want to order a fully assembled RF Explorer 3G Combo including a WSUB1G base model and a RFEMWSUB3G expansion module. It includes a transport EVA carry case for RF Explorer and extends band coverage to any frequency starting at 15MHz and going up to 2.7GHz. This include very interesting frequency areas such as 2m HAM radio, all VHF and UHF, FM radio, GPS, WiFi and WiMax, Bluetooth, etc. It has extended internal FLASH and RAM memory for additional capabilities and a lifetime free firmware upgrades available, open to community requested features.