Reach base station setup

Hi I saw a couple references to using the ublox usb dongle as a base station for Reach. Originally my understanding was that another Reach unit was needed for the base station. Can anyone please explain to me the pros and cons of using either setup (Reach rover w Reach base station vs. ublox usb base station with reach rover). My main concern for the moment would be loss of accuracy using the usb dongle. On the other hand it seems that using the usb dongle would also save you money.

Thanks for the help.

Hello Garret!
Using Reach as a base station is not required, but using the dongle means you need some kind of device to transfer ublox data to the rover(preferably running RTKLIB software). The accuracy will mostly depend on antenna’s placement and quality and things like weather.